Intermittent CEL + stumble

[Mn92gvr4]

this was my issue. its under the glovebox more towards the door.

 

[coyotes]

thanks dude i will check it out. My car did the CEL + stumble real bad this morning, I am just going to park it for now while I get the throttle body rebuilt, gonna test the TPS and replace if needed, reset it and base idle and check out the ECU caps.

 

[Mn92gvr4]

Hopefully it works. Plus you get mad JDM points for the zip-ties.

 

[coyotes]

Still having this issue. Throttle body has been rebuilt, I have a new (different AWD 5 speed 1g turbo) ECU and new 2g ISC installed. Car still throws the CEL 14 and 44 which is TPS and ignition coil.

 

[boosted_85]

if you have a logger, I would suggest you log rpm and vss. If there's any weird rpm spikes vs. speed it coule be your cas causing the stumble.

 

[coyotes]

Thanks, I will look into it. I am going to try replacing the coil and see where things go from there. I'm starting to believe the TPS is out of adjustment. I don't suspect the CAS, wouldn't a faulty CAS just cause the car to not start?

 

[Coltsfan]

FYI: Check your TPS signal with a graphing meter while driving. Not sure if it's just vibration, but sometimes the fault won't show up on a static sweep test with the engine off.

 

[Yao]

don't forget to check the transistors and spark plugs/wires.