# 2005 Malibu Maxx with P0171 and P0174 runaround

**URL:** <https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, malibumaxx\
**Created:** [March 10, 2014, 6:44am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119 "2014-03-10T06:44:44Z")\
**Posts on this page:** 10\
**Page:** 2

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [March 24, 2014, 2:33am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/21 "2014-03-24T02:33:55Z")

</div>

Latest NEWS: There is no PCV valve on the car… There is an Emissions Hose but no PCV Valve. It seems to be fine… I replaced the EGR an it is running smoother but then scheduled an appt with the deal to have the PCM reflashed. After flashing it did run better… for about 10 miles… Before I could even make it home it coded P0507. I cleared it and turned around to go back to the dealer and got about 1 mile before it coded P0171 and P0174. Finally I got to the dealer and waited several hours for the dealer to pull the codes from the car and tell me that it would be much longer and cost lots of money if I wanted them to touch it. Thereby proving that everything I had said to them about the car when I brought it in fell on deaf ears… They never even bothered checking the codes or anything I had said about the car. My faith in the dealer, already low has reached bottom and started to dig a hole…

They did say they suspected the cars PCM. So I ordered a used one and have it to install. Is there anything special about installing this? It appears to be easily accessable right in front of the battery in the engine compartment… Any advice?

---

<div class="post-metadata">

**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [March 24, 2014, 3:31am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/22 "2014-03-24T03:31:32Z")

</div>

@sellwood … it used to be the case that when a car developed drivability symptoms, a DIY’er could make some educated guesses and start replacing stuff and that would usually eventually fix the problem. On my 70’s Ford truck for example it hesitated on accel, I changed this and that, eventually I replaced the carb and that fixed it. The other stuff I did just gave me a tune-up in the process. But this technique isn’t very effective any more, with the complicated emissions functions and computer feedback systems used in cars now-a-days. Usually with the “replace stuff until it is fixed” DIY’er technique applied to post 1990 cars, you run out of money before the problem is found.

I think you will be time and money ahead by paying some $$ up front to get a proper diagnosis. You can then do the suggested repairs yourself if you like. There’s no reason to use a dealership unless this is under warranty. You’ll get better results a probably save $$ to ask for recommendations for a local inde shop who specializes in GM products for the diagnosis.

---

<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [March 24, 2014, 4:15am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/23 "2014-03-24T04:15:16Z")

</div>

@‌sellwood

That used PCM might have to be flashed, to make sure it has the latest software. The dealer will also have to make sure it is set up for your specific vehicle, versus a different body style car or SUV

Not all independent shops are set up to flash PCMs. Ask questions before bringing the car and the used PCM to a shop

Also make sure the shop is comfortable with the idea of using the parts which you supplied. Again, not all shops are willing to do this.

If the used PCM is defective, or won’t work with your car, or doesn’t solve the customer’s problem, it can quickly escalate into an ugly situation. Some shops would rather not deal with this possibility. Understandably so, I might add.

---

<div class="post-metadata">

**Author:** ![Cougar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cougar/32/21348_2.png) [@Cougar](https://community.cartalk.com/u/Cougar)\
**Post date:** [March 24, 2014, 7:12pm UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/24 "2014-03-24T19:12:48Z")

</div>

My suspicion is that replacing the PCM isn’t going to change things but I could be wrong about that. The lean mixture codes for both banks seems to indicate a air leak in the intake area after the MAF sensor or perhaps the sensor itself is not working like it should and replacing it may help fix that issue.

---

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/25 "2014-04-26T05:10:58Z")

</div>

# Actually those are all the error codes… I once saw an idle too high error code but only once… … Here is the full test report… in several messages… Mode $06 report generated by Torque for Android

## Vehicle VIN: Not present Vehicle Manufacturer: Unknown Vehicle Calibration ID: Not present Test report:

## MID:$01 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 1 Max: 0.50874V Min: 0.50874V Test result value: 0.50874V PASS

## MID:$01 TID:$02 Lean to Rich sensor threshold voltage(constant) - O2 Bank 1 Sensor 1 Max: 0.55986V Min: 0.55986V Test result value: 0.55986V PASS

## MID:$01 TID:$03 Low sensor Voltage for switch time calculation - O2 Bank 1 Sensor 1 Max: 0.29939V Min: 0.29939V Test result value: 0.29939V PASS

## MID:$01 TID:$04 High sensor Voltage for switch time calculation - O2 Bank 1 Sensor 1 Max: 0.5989V Min: 0.5989V Test result value: 0.5989V PASS

## MID:$01 TID:$05 Rich to Lean sensor switch time(calculated) - O2 Bank 1 Sensor 1 Max: 200ms Min: 0ms Test result value: 26ms PASS

## MID:$01 TID:$06 Lean to Rich sensor switch time(calculated) - O2 Bank 1 Sensor 1 Max: 200ms Min: 0ms Test result value: 23ms PASS

MID:$01 TID:$5f

- O2 Bank 1 Sensor 1  
Max: 40,982 Min: 10,432  
Test result value: 14,080  
PASS

* * *

MID:$01 TID:$80

- O2 Bank 1 Sensor 1  
Max: 65,535Changes Min: 55Changes  
Test result value: 340Changes  
PASS

* * *

MID:$02 TID:$8a

- O2 Bank 1 Sensor 2  
Max: 1,080Count Min: 0Count  
Test result value: 54Count  
PASS

* * *

MID:$02 TID:$8b

- O2 Bank 1 Sensor 2  
Max: 1.10678V Min: 0.68576V  
Test result value: 0.81594V  
PASS

* * *

MID:$02 TID:$8c

- O2 Bank 1 Sensor 2  
Max: 0.29073V Min: 0V  
Test result value: 0.04331V  
PASS

* * *

## MID:$05 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 1 Max: 0.50191V Min: 0.50191V Test result value: 0.50191V PASS

## MID:$05 TID:$02 Lean to Rich sensor threshold voltage(constant) - O2 Bank 2 Sensor 1 Max: 0.5529V Min: 0.5529V Test result value: 0.5529V PASS

## MID:$05 TID:$03 Low sensor Voltage for switch time calculation - O2 Bank 2 Sensor 1 Max: 0.29939V Min: 0.29939V Test result value: 0.29939V PASS

## MID:$05 TID:$04 High sensor Voltage for switch time calculation - O2 Bank 2 Sensor 1 Max: 0.5989V Min: 0.5989V Test result value: 0.5989V PASS

## MID:$05 TID:$05 Rich to Lean sensor switch time(calculated) - O2 Bank 2 Sensor 1 Max: 200ms Min: 0ms Test result value: 21ms PASS

## MID:$05 TID:$06 Lean to Rich sensor switch time(calculated) - O2 Bank 2 Sensor 1 Max: 200ms Min: 0ms Test result value: 19ms PASS

MID:$05 TID:$80

- O2 Bank 2 Sensor 1  
Max: 65,535Changes Min: 55Changes  
Test result value: 364Changes  
PASS

* * *

MID:$06 TID:$8a

- O2 Bank 2 Sensor 2  
Max: 1,080Count Min: 0Count  
Test result value: 12Count  
PASS

* * *

MID:$06 TID:$8b

- O2 Bank 2 Sensor 2  
Max: 1.10678V Min: 0.68576V  
Test result value: 0.70309V  
PASS

* * *

MID:$06 TID:$8c

- O2 Bank 2 Sensor 2  
Max: 0.29073V Min: 0V  
Test result value: 0.02599V  
PASS

* * *

## MID:$21 TID:$01 Rich to Lean sensor threshold voltage(constant) - Catalyst Monitor Bank 1 Max: 41,243mHz Min: 20,512mHz Test result value: 288mHz FAIL

## MID:$21 TID:$03 Low sensor Voltage for switch time calculation - Catalyst Monitor Bank 1 Max: 41,245mHz Min: 4,128mHz Test result value: 800mHz FAIL

MID:$21 TID:$a0

- Catalyst Monitor Bank 1  
Test incomplete or dependant test failed  
–  
MID:$22 TID:$a0
- Catalyst Monitor Bank 2  
Test incomplete or dependant test failed  
–  
MID:$31 TID:$5f
- EGR Monitor Bank 1  
Max: 40,973 Min: 26,816  
Test result value: 14,080  
FAIL

* * *

MID:$31 TID:$a9

- EGR Monitor Bank 1  
Max: 0.727kPa Min: -32.768kPa  
Test result value: -0.703kPa  
PASS

* * *

MID:$3a TID:$c0

- EVAP Monitor (cap off)  
Test incomplete or dependant test failed  
–  
MID:$3a TID:$c1
- EVAP Monitor (cap off)  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$c8
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$c9
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$ca
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$cb
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c4
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c5
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c6
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c7
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$41 TID:$18
- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,266 Min: 4,128  
Test result value: 6,208  
PASS

* * *

MID:$41 TID:$1b

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,113 Min: 20,528  
Test result value: 6,976  
FAIL

* * *

MID:$41 TID:$1d

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,113 Min: 4,144  
Test result value: 7,488  
PASS

* * *

MID:$41 TID:$d2

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$41 TID:$d3

- O2 Heater Monitor Bank 1 - Sensor 1  
Test incomplete or dependant test failed  
–  
MID:$42 TID:$d2
- O2 Heater Monitor Bank 1 - Sensor 2  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$42 TID:$d3

- O2 Heater Monitor Bank 1 - Sensor 2  
Test incomplete or dependant test failed  
–

---

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/26 "2014-04-26T05:10:58Z")

</div>

Actually those are all the errors I once saw a P0507 but only once…  
I will check the fuses in the morning - thank you… I have not done that…

The system will not let me post the full OBD II report it’s too long… I also may not be running the test right.

# Mode $06 report generated by Torque for Android

## Vehicle VIN: Not present Vehicle Manufacturer: Unknown Vehicle Calibration ID: Not present Test report:

## MID:$01 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 1 Sensor 1 Max: 0.50874V Min: 0.50874V Test result value: 0.50874V PASS

## MID:$01 TID:$02 Lean to Rich sensor threshold voltage(constant) - O2 Bank 1 Sensor 1 Max: 0.55986V Min: 0.55986V Test result value: 0.55986V PASS

## MID:$01 TID:$03 Low sensor Voltage for switch time calculation - O2 Bank 1 Sensor 1 Max: 0.29939V Min: 0.29939V Test result value: 0.29939V PASS

## MID:$01 TID:$04 High sensor Voltage for switch time calculation - O2 Bank 1 Sensor 1 Max: 0.5989V Min: 0.5989V Test result value: 0.5989V PASS

## MID:$01 TID:$05 Rich to Lean sensor switch time(calculated) - O2 Bank 1 Sensor 1 Max: 200ms Min: 0ms Test result value: 26ms PASS

## MID:$01 TID:$06 Lean to Rich sensor switch time(calculated) - O2 Bank 1 Sensor 1 Max: 200ms Min: 0ms Test result value: 23ms PASS

MID:$01 TID:$5f

- O2 Bank 1 Sensor 1  
Max: 40,982 Min: 10,432  
Test result value: 14,080  
PASS

* * *

MID:$01 TID:$80

- O2 Bank 1 Sensor 1  
Max: 65,535Changes Min: 55Changes  
Test result value: 340Changes  
PASS

* * *

MID:$02 TID:$8a

- O2 Bank 1 Sensor 2  
Max: 1,080Count Min: 0Count  
Test result value: 54Count  
PASS

* * *

MID:$02 TID:$8b

- O2 Bank 1 Sensor 2  
Max: 1.10678V Min: 0.68576V  
Test result value: 0.81594V  
PASS

* * *

MID:$02 TID:$8c

- O2 Bank 1 Sensor 2  
Max: 0.29073V Min: 0V  
Test result value: 0.04331V  
PASS

* * *

## MID:$05 TID:$01 Rich to Lean sensor threshold voltage(constant) - O2 Bank 2 Sensor 1 Max: 0.50191V Min: 0.50191V Test result value: 0.50191V PASS

## MID:$05 TID:$02 Lean to Rich sensor threshold voltage(constant) - O2 Bank 2 Sensor 1 Max: 0.5529V Min: 0.5529V Test result value: 0.5529V PASS

## MID:$05 TID:$03 Low sensor Voltage for switch time calculation - O2 Bank 2 Sensor 1 Max: 0.29939V Min: 0.29939V Test result value: 0.29939V PASS

## MID:$05 TID:$04 High sensor Voltage for switch time calculation - O2 Bank 2 Sensor 1 Max: 0.5989V Min: 0.5989V Test result value: 0.5989V PASS

## MID:$05 TID:$05 Rich to Lean sensor switch time(calculated) - O2 Bank 2 Sensor 1 Max: 200ms Min: 0ms Test result value: 21ms PASS

## MID:$05 TID:$06 Lean to Rich sensor switch time(calculated) - O2 Bank 2 Sensor 1 Max: 200ms Min: 0ms Test result value: 19ms PASS

MID:$05 TID:$80

- O2 Bank 2 Sensor 1  
Max: 65,535Changes Min: 55Changes  
Test result value: 364Changes  
PASS

* * *

MID:$06 TID:$8a

- O2 Bank 2 Sensor 2  
Max: 1,080Count Min: 0Count  
Test result value: 12Count  
PASS

* * *

MID:$06 TID:$8b

- O2 Bank 2 Sensor 2  
Max: 1.10678V Min: 0.68576V  
Test result value: 0.70309V  
PASS

* * *

MID:$06 TID:$8c

- O2 Bank 2 Sensor 2  
Max: 0.29073V Min: 0V  
Test result value: 0.02599V  
PASS

* * *

## MID:$21 TID:$01 Rich to Lean sensor threshold voltage(constant) - Catalyst Monitor Bank 1 Max: 41,243mHz Min: 20,512mHz Test result value: 288mHz FAIL

## MID:$21 TID:$03 Low sensor Voltage for switch time calculation - Catalyst Monitor Bank 1 Max: 41,245mHz Min: 4,128mHz Test result value: 800mHz FAIL

MID:$21 TID:$a0

- Catalyst Monitor Bank 1  
Test incomplete or dependant test failed  
–  
MID:$22 TID:$a0
- Catalyst Monitor Bank 2  
Test incomplete or dependant test failed  
–  
MID:$31 TID:$5f
- EGR Monitor Bank 1  
Max: 40,973 Min: 26,816  
Test result value: 14,080  
FAIL

* * *

MID:$31 TID:$a9

- EGR Monitor Bank 1  
Max: 0.727kPa Min: -32.768kPa  
Test result value: -0.703kPa  
PASS

* * *

MID:$3a TID:$c0

- EVAP Monitor (cap off)  
Test incomplete or dependant test failed  
–  
MID:$3a TID:$c1
- EVAP Monitor (cap off)  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$c8
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$c9
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$ca
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3c TID:$cb
- EVAP Monitor (0.040")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c4
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c5
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c6
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$3d TID:$c7
- EVAP Monitor (0.020")  
Test incomplete or dependant test failed  
–  
MID:$41 TID:$18
- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,266 Min: 4,128  
Test result value: 6,208  
PASS

* * *

MID:$41 TID:$1b

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,113 Min: 20,528  
Test result value: 6,976  
FAIL

* * *

---

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/27 "2014-04-26T05:10:58Z")

</div>

2nd part of the report -

MID:$41 TID:$1d

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 41,113 Min: 4,144  
Test result value: 7,488  
PASS

* * *

MID:$41 TID:$d2

- O2 Heater Monitor Bank 1 - Sensor 1  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$41 TID:$d3

- O2 Heater Monitor Bank 1 - Sensor 1  
Test incomplete or dependant test failed  
–  
MID:$42 TID:$d2
- O2 Heater Monitor Bank 1 - Sensor 2  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$42 TID:$d3

- O2 Heater Monitor Bank 1 - Sensor 2  
Test incomplete or dependant test failed  
–  
MID:$45 TID:$d2
- O2 Heater Monitor Bank 2 - Sensor 1  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$45 TID:$d3

- O2 Heater Monitor Bank 2 - Sensor 1  
Test incomplete or dependant test failed  
–  
MID:$46 TID:$d2
- O2 Heater Monitor Bank 2 - Sensor 2  
Max: 17Count Min: 0Count  
Test result value: 0Count  
PASS

* * *

MID:$46 TID:$d3

- O2 Heater Monitor Bank 2 - Sensor 2  
Test incomplete or dependant test failed  
–  
MID:$50 TID:$03  
Low sensor Voltage for switch time calculation - O2 Heater Monitor Bank 4 - Sensor 4  
Max: 45,072 Min: 6,162  
Test result value: 65,520  
FAIL

* * *

## MID:$51 TID:$22

## Max: 41,113 Min: 4,144 Test result value: 8,784 PASS

MID:$61 TID:$32

- Heated Catalyst Monitor Bank 1  
Max: 41,113 Min: 4,144  
Test result value: 12,896  
PASS

* * *

## MID:$91 TID:$5f

## Max: 40,968 Min: 26,816 Test result value: 14,080 FAIL

## MID:$a1 TID:$01 Rich to Lean sensor threshold voltage(constant) - Misfire Monitor General Data Max: 41,243 Min: 20,512 Test result value: 416 FAIL

## MID:$a1 TID:$03 Low sensor Voltage for switch time calculation - Misfire Monitor General Data Max: 41,245 Min: 20,512 Test result value: 928 FAIL

## MID:$a1 TID:$04 High sensor Voltage for switch time calculation - Misfire Monitor General Data Max: 41,246 Min: 4,128 Test result value: 1,184 FAIL

## MID:$a1 TID:$0a Sensor period(calculated) - Misfire Monitor General Data Max: 41,252 Min: 4,128 Test result value: 2,720 FAIL

## MID:$a2 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 1 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a2 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 1 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a3 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 2 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a3 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 2 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a4 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 3 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a4 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 3 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a5 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 4 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a5 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 4 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a6 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 5 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a6 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 5 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a7 TID:$0b EWMA Misfire counts (average) for last 10 drive cycles - Misfire Cylinder 6 Data Max: 65,535Count Min: 0Count Test result value: 0Count PASS

## MID:$a7 TID:$0c Misfire counts for last/current driving cycles(calculated) - Misfire Cylinder 6 Data Max: 65,535Count Min: 0Count Test result value: 2Count PASS

## MID:$b1 TID:$08 Maximum sensor Voltage for test cycle(calculated) - Max: -48,572mV/s Min: 8,256mV/s Test result value: 4,448mV/s FAIL

## MID:$c1 TID:$19

## Max: 41,267 Min: 20,512 Test result value: 6,592 FAIL

## MID:$c1 TID:$1a

## Max: 41,113 Min: 20,528 Test result value: 6,848 FAIL

## MID:$c1 TID:$1b

## Max: 41,113 Min: 20,528 Test result value: 7,104 FAIL

## MID:$c1 TID:$1c

## Max: 41,113 Min: 4,144 Test result value: 7,360 PASS

## MID:$c1 TID:$24

## Max: 41,113 Min: 4,144 Test result value: 9,408 PASS

## MID:$c1 TID:$5f

## Max: 40,964 Min: 10,432 Test result value: 14,080 PASS

## MID:$d1 TID:$1e

## Max: 41,113 Min: 4,144 Test result value: 7,888 PASS

## MID:$d1 TID:$32

## Max: 1 Min: 20,561 Test result value: 13,008 FAIL

## MID:$e1 TID:$33 Manufacturer defined MID - Max: 41,113 Min: 20,528 Test result value: 13,280 FAIL

End of report.

---

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/28 "2014-04-26T05:10:58Z")

</div>

I once saw a P0507 error once but other than that it is not throwing any other errors. I have checked all fuses and none are blown.

---

<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/29 "2014-04-26T05:10:58Z")

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## Thanks for the help. After attempting to clean the incredibly dirty, rusted, corroded, flat out unable to be cleaned EGR (which did not even have a gasket between it and the engine). I have ordered a new one. Reinstalling it with a gasket so the car works until it gets here the car does seem to run better. It has not thrown a lean code in 40 miles which is an improvement but it does show max voltage on the o2 heater circuit for o2 sensor 4. This sensor was just replaced so I can only assume this means a short or a bad installation. Am I reading that last part correctly? — Thanks for the suggestions George I will get the cars charging system checked at Autozone and see what the equipment says as a start.

circuitsmith - The problem was not making the car stall - the cars computer was popping up the ENG PWR REDUCED message and disconnecting the gas pedal (it’s electronic)… The engine then idled extremely rough until turned off.

## thanks for all the help!!! Sean

## The latest failed tests are (and I did not reset the computer so there may be holdovers) MID:$11 TID:$5f

## Max: 40,966 Min: 26,816 Test result value: 14,080 FAIL

## MID:$50 TID:$03 Low sensor Voltage for switch time calculation - O2 Heater Monitor Bank 4 - Sensor 4 Max: 45,078 Min: 22,546 Test result value: 65,520 FAIL

## MID:$c1 TID:$19

## Max: 41,113 Min: 20,528 Test result value: 6,592 FAIL

## MID:$d0 TID:$03 Low sensor Voltage for switch time calculation - Max: 45,075 Min: 6,162 Test result value: 65,520 FAIL

## MID:$d1 TID:$32

## Max: 1 Min: 20,561 Test result value: 13,008 FAIL

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<div class="post-metadata">

**Author:** ![sellwood](https://avatars.discourse-cdn.com/v4/letter/s/c77e96/32.png) [@sellwood](https://community.cartalk.com/u/sellwood)\
**Post date:** [April 26, 2014, 5:10am UTC](https://community.cartalk.com/t/2005-malibu-maxx-with-p0171-and-p0174-runaround/84119/30 "2014-04-26T05:10:58Z")

</div>

## Thanks for the help. After attempting to clean the incredibly dirty, rusted, corroded, flat out unable to be cleaned EGR (which did not even have a gasket between it and the engine). I have ordered a new one. Reinstalling it with a gasket so the car works until it gets here the car does seem to run better. It has not thrown a lean code in 40 miles which is an improvement but it does show max voltage on the o2 heater circuit for o2 sensor 4. This sensor was just replaced so I can only assume this means a short or a bad installation. Am I reading that last part correctly? — Thanks for the suggestions George I will get the cars charging system checked at Autozone and see what the equipment says as a start.

circuitsmith - The problem was not making the car stall - the cars computer was popping up the ENG PWR REDUCED message and disconnecting the gas pedal (it’s electronic)… The engine then idled extremely rough until turned off.

## thanks for all the help!!! Sean

## The latest failed tests are (and I did not reset the computer so there may be holdovers) MID:$11 TID:$5f

## Max: 40,966 Min: 26,816 Test result value: 14,080 FAIL

## MID:$50 TID:$03 Low sensor Voltage for switch time calculation - O2 Heater Monitor Bank 4 - Sensor 4 Max: 45,078 Min: 22,546 Test result value: 65,520 FAIL

## MID:$c1 TID:$19

## Max: 41,113 Min: 20,528 Test result value: 6,592 FAIL

## MID:$d0 TID:$03 Low sensor Voltage for switch time calculation - Max: 45,075 Min: 6,162 Test result value: 65,520 FAIL

## MID:$d1 TID:$32

## Max: 1 Min: 20,561 Test result value: 13,008 FAIL

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