# \#diagnostics **URL:** https://community.cartalk.com/tag/diagnostics/14169.md [Latest](https://community.cartalk.com/latest.md) · [Categories](https://community.cartalk.com/categories.md) · [Tags](https://community.cartalk.com/tags.md) --- ## [ECM not communicating](https://community.cartalk.com/t/ecm-not-communicating/197864)
**Author:** [@dianiskatomas\_191452](https://community.cartalk.com/u/dianiskatomas_191452)\ **Replies:** 8\ **Last updated:** [May 11, 2026, 1:08pm UTC](https://community.cartalk.com/t/ecm-not-communicating/197864 "2026-05-11T13:08:09Z")
Hi, my ford is doing weird things and PCM or ecm is not communicating properly(when i connect to ecm after few seconds i have to reconnect). At random times relay in engine bay relay of glowplugs starts to click for few … --- ## [Need help diagnosing swaying issue](https://community.cartalk.com/t/need-help-diagnosing-swaying-issue/199233)
**Author:** [@ThatDudeBishop222](https://community.cartalk.com/u/ThatDudeBishop222)\ **Replies:** 10\ **Last updated:** [February 21, 2025, 10:16pm UTC](https://community.cartalk.com/t/need-help-diagnosing-swaying-issue/199233 "2025-02-21T22:16:19Z")
In Nov of 2024 I bought a 2018 Ford fusion Titanium Hybrid from a car dealership in St Louis. That evening on the way there it started snowing. After buying the car as I got on the highway the readend began swaying left … --- ## [P0711 Code: Can engine coolant thermostat issues cause this transmission coolant error?](https://community.cartalk.com/t/p0711-code-can-engine-coolant-thermostat-issues-cause-this-transmission-coolant-error/198034)
**Author:** [@OSR](https://community.cartalk.com/u/OSR)\ **Replies:** 3\ **Last updated:** [November 14, 2024, 6:30pm UTC](https://community.cartalk.com/t/p0711-code-can-engine-coolant-thermostat-issues-cause-this-transmission-coolant-error/198034 "2024-11-14T18:30:37Z")
I had what I thought were two issues going on simultaneously with my 2015 Yukon Denali. First, I got a check engine light and my scanner showed a P0711 code, which had something to do with the transmission temperature. … --- ## [2008 saturn aura 3.5 no start](https://community.cartalk.com/t/2008-saturn-aura-3-5-no-start/195620)
**Author:** [@ibrahimdabaja66\_190874](https://community.cartalk.com/u/ibrahimdabaja66_190874)\ **Replies:** 20\ **Last updated:** [September 27, 2024, 4:11am UTC](https://community.cartalk.com/t/2008-saturn-aura-3-5-no-start/195620 "2024-09-27T04:11:12Z")
my 2008 saturn aura wont start. has 12.5v from the battery and a new starter. has codes p1682, p0685, p0223,p0122,p0118,p0107. took it to two shops in my town, and both shops could not find the issue. --- ## [Troubleshooting 13 Kia Optima Ex - Engine Codes/Fuel issue?](https://community.cartalk.com/t/troubleshooting-13-kia-optima-ex-engine-codes-fuel-issue/189473)
**Author:** [@phillyoe](https://community.cartalk.com/u/phillyoe)\ **Replies:** 7\ **Last updated:** [March 7, 2023, 9:52pm UTC](https://community.cartalk.com/t/troubleshooting-13-kia-optima-ex-engine-codes-fuel-issue/189473 "2023-03-07T21:52:12Z")
2013 Kia Optima Ex 139,000 Looking for suggestions on where to go next for fixing my car. Issues started with the vehicle stalling after re-fueling the car. Whether I fill it up all the way or any amount, the car will … --- ## [HELP! VW Crafter Diagnostic Code P203B](https://community.cartalk.com/t/help-vw-crafter-diagnostic-code-p203b/189317)
**Author:** [@lochhead.sarah](https://community.cartalk.com/u/lochhead.sarah)\ **Replies:** 1\ **Last updated:** [February 25, 2023, 2:09pm UTC](https://community.cartalk.com/t/help-vw-crafter-diagnostic-code-p203b/189317 "2023-02-25T14:09:46Z")
hello! I need help reading the Freeze Frame from my diagnosis. The engine light came on in my VW Crafter 2010 and the code we received is P203B ($07e8) - Reductant Level Sensor Circuit Range/Performance. My understandin… --- ## [08 HHR freeze frame data help](https://community.cartalk.com/t/08-hhr-freeze-frame-data-help/181329)
**Author:** [@TaDluv0713](https://community.cartalk.com/u/TaDluv0713)\ **Replies:** 28\ **Last updated:** [December 20, 2021, 11:48pm UTC](https://community.cartalk.com/t/08-hhr-freeze-frame-data-help/181329 "2021-12-20T23:48:20Z")
Fuel Sys 1 - OL Fuel Sys 2 - N/A Calc Load - 54.9% ECT - 79 degrees F STFT B1 - 0.0% LTFT B1 - 5.5% MAP - 14 inHg Eng RPM - 1121 Veh Speed - 0mph Spark Adv - -2.0 IAT - 75 degrees F MAF - 1.15 (lb/min) hours, … --- ## [2011 Nissan Sentra p0420](https://community.cartalk.com/t/2011-nissan-sentra-p0420/179920)
**Author:** [@mkluza98\_177643](https://community.cartalk.com/u/mkluza98_177643)\ **Replies:** 7\ **Last updated:** [October 17, 2021, 5:08am UTC](https://community.cartalk.com/t/2011-nissan-sentra-p0420/179920 "2021-10-17T05:08:01Z")
I have a 2011 Nissan Sentra. It has had the following codes for 1.5 to 2years. Primary DTC P0420 Secondary DTC P0430 Catalytic converter below threshold bank 1 I feel no loss in power. It idles a little rough but not… --- ## [Pressure Pulse Sensor](https://community.cartalk.com/t/pressure-pulse-sensor/179022)
**Author:** [@oldnotdeadyet](https://community.cartalk.com/u/oldnotdeadyet)\ **Replies:** 6\ **Last updated:** [August 28, 2021, 2:47pm UTC](https://community.cartalk.com/t/pressure-pulse-sensor/179022 "2021-08-28T14:47:46Z")
I see that eBay is selling a device called the Pressure Pulse Sensor. Does anybody here have experience with this device? --- ## [R+R or R+I | RepairReplace R+Inspect - proper diag A to Z?](https://community.cartalk.com/t/r-r-or-r-i-repairreplace-r-inspect-proper-diag-a-to-z/170596)
**Author:** [@tundrawolf](https://community.cartalk.com/u/tundrawolf)\ **Replies:** 5\ **Last updated:** [September 29, 2020, 4:54pm UTC](https://community.cartalk.com/t/r-r-or-r-i-repairreplace-r-inspect-proper-diag-a-to-z/170596 "2020-09-29T16:54:58Z")
Hi I’m new. Don’t have a car problem specific but after reading through several pages of the ancient thread mentioned here on Servicing shops marking up prices I had to sign up and get in on the love here . I do have so… --- ## [1999 Dodge Stratus Diagnostic/Scanner tool - which one?](https://community.cartalk.com/t/1999-dodge-stratus-diagnostic-scanner-tool-which-one/136824)
**Author:** [@Ernesto\_Silva](https://community.cartalk.com/u/Ernesto_Silva)\ **Replies:** 6\ **Last updated:** [March 20, 2019, 5:02pm UTC](https://community.cartalk.com/t/1999-dodge-stratus-diagnostic-scanner-tool-which-one/136824 "2019-03-20T17:02:49Z")
Hi, I live in Uruguay - South America and I Dodge cars are very rare here. I have a 1999 Dodge Stratus LX (2.5 V6) under Chrysler brand. I want to buy a diagnostics tool or scanner, I won’t use it on other cars (not man… --- ## [On-board diagnostics drive cycle vs. check engine light](https://community.cartalk.com/t/on-board-diagnostics-drive-cycle-vs-check-engine-light/135933)
**Author:** [@aj\_149109](https://community.cartalk.com/u/aj_149109)\ **Replies:** 8\ **Last updated:** [March 7, 2019, 3:06am UTC](https://community.cartalk.com/t/on-board-diagnostics-drive-cycle-vs-check-engine-light/135933 "2019-03-07T03:06:58Z")
Hey guys, I’m having a bit of confusion about my check engine light. I just had my catalytic converter replaced. My check engine light came on, we checked what was wrong, and tried two cans of sea foam that didn’t help,… --- ## [2004 Accord; Help with Vibration Diagnosis](https://community.cartalk.com/t/2004-accord-help-with-vibration-diagnosis/133921)
**Author:** [@Zarathuztra](https://community.cartalk.com/u/Zarathuztra)\ **Replies:** 7\ **Last updated:** [February 4, 2019, 4:49pm UTC](https://community.cartalk.com/t/2004-accord-help-with-vibration-diagnosis/133921 "2019-02-04T16:49:43Z")
Car: 2004 Honda Accord EX 2.4L Work that has been done within the last 2 weeks: Power steering pump replaced (and belt) Rack and pinion replaced Wheel alignment (2) New tires (currently on rear, fronts are close to ne… --- ## [Tundra bogs down under load, but not when using cruise control](https://community.cartalk.com/t/tundra-bogs-down-under-load-but-not-when-using-cruise-control/94447)
**Author:** [@buffalogirlfarms](https://community.cartalk.com/u/buffalogirlfarms)\ **Replies:** 18\ **Last updated:** [August 17, 2016, 11:59am UTC](https://community.cartalk.com/t/tundra-bogs-down-under-load-but-not-when-using-cruise-control/94447 "2016-08-17T11:59:19Z")
My 01 tundra can bog down under load - going up a long hill or towing a trailer - with the speed and RPMs steadily dropping until it finally downshifts, and the RPMS shoot up to 4k or so, but I don't regain much speed. T…