# Continued stalling

**URL:** <https://community.cartalk.com/t/continued-stalling/124045>\
**Category:** Maintenance/Repairs\
**Tags:** mustang, ford\
**Created:** [August 30, 2018, 4:25pm UTC](https://community.cartalk.com/t/continued-stalling/124045 "2018-08-30T16:25:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![James\_Spangler](https://avatars.discourse-cdn.com/v4/letter/j/cdc98d/32.png) [@James\_Spangler](https://community.cartalk.com/u/James_Spangler)\
**Post date:** [August 30, 2018, 4:25pm UTC](https://community.cartalk.com/t/continued-stalling/124045/1 "2018-08-30T16:25:34Z")

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I have an 01 Mustang V6 which recently gave me some trouble where it would run fine for a while and then stall while driving. The original error code I got was P1518 which lead me to find that my IMCR was missing a plastic bushing that connected the metal rods to the engine. I replaced it and put the manifold back on and reconnected everything but the engine continues to stall after running for a few minutes from a cold start.  
I connected my code reader and the codes I got back were P0122 and P1504. Any information on how to fix the problems associated with these codes without taking my car to an expensive repair shop would be appreciated.  
I have checked to make sure my fuel pump and spark plugs are working correctly so they are not the problem as many people have suggested.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 30, 2018, 4:42pm UTC](https://community.cartalk.com/t/continued-stalling/124045/2 "2018-08-30T16:42:38Z")

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The Ford DTC P1504 points to a problem with the Idle Air Control circuit.

> **[P1504 Ford - Intake Air Control Circuit Malfunction](https://www.engine-codes.com/p1504_ford.html)**
>
> The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. The IAC valve assembly meters intake air around the throttle plate through a bypass within the IAC valve assembly and throttle body. The...

[https://www.rockauto.com/en/catalog/ford,2001,mustang,3.8l+v6,1372632,fuel+&+air,idle+air+control+(iac)+valve,6072](https://www.rockauto.com/en/catalog/ford,2001,mustang,3.8l+v6,1372632,fuel+&+air,idle+air+control+(iac)+valve,6072)

Tester

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [August 30, 2018, 5:32pm UTC](https://community.cartalk.com/t/continued-stalling/124045/3 "2018-08-30T17:32:21Z")

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Did you damage the wires to the IAC removing the intake? Or maybe they were already damaged or corroded? Check that.

The P0122 code indicates the following;

Faulty throttle position sensor.  
Throttle position sensor harness is open or shorted  
Throttle position sensor circuit poor electrical connection

Seems like a wiring problem to the throttle position sensor as well… right there with the IAC wiring. Coincidence? Probably not.
