Stalling at idle

samedi 20 septembre 2014

Hey guys.

Few cascading problems on my 2004:

1) Dash went haywire. The throttle at this time was working fine.

2) I reset the ECU when I got home, and when I started it in the morning it stalled a few seconds after starting.

3) The dash gauges continue to function now, but the throttle is acting very strange. If I manually keep the car (with foot on accelerator) around 800 RPM it "idles" just fine, but releasing the pedal (which is unresponsive from light touch to around 25-35%) causes immediate stalling.



Here is my theory: I had an electrical short somewhere. This electrical problem shot the motor for the throttle valve in the head, and now it doesn't respond properly to voltages.



Here's my question: What is the best way to confirm this diagnosis; where can I get the wiring done at a mechanic (dealers are apparently worthless) in the south jersey/ philly/ Delaware area; and does anyone have another idea of what could have caused this?



I got P-codes pending one day that I drove it for TP sensors A and B voltage too high, but they're gone now. Mysterious.

I still have U-codes for an open or short in the CAN system.

The throttle valve is clean and operates spick and spam under manual pressure.




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