Engine goes into idle mode after about 2 miles of operation when it is cold. If you attempt to accelerate it will die. Starts right up, but idle only. The throttle position sensor has been replaced. No change. The 1693 code indicates dtc"s in either the pcm or the ecm. Since I am having an engine running problem, I assume the code is in the ecm. Is the code telling me I need to replace the ecm?
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If a warning light is on, there's a trouble code stored in the computer. There are well over 800-1,000 possible trouble codes in the average late model vehicle, so asking us to guess what's causing your problem without knowing the code is a complete waste of time. Get the code read. Post it here. THEN we can help
If the start and run fine are on cold starts, I would look for vacuum leaks. The normal start mode for these things is to have a richer condition upon a cold start. When the ECU detects warmth in the engine is drops the extra rich cold start mode then the idle goes rough due to the normal mixture being too lean due to a vacuum leak. Look for cracked, loose or broken vacuum hoses. It could also be due to a EGR valve stuck open.
I guess I could buy into the timing belt idea. But, if it runs ok all other times, its not the timing belt. Especially if it idles ok and has power once it gets going. How many miles on it? Is the check engine light on?
May be having problems with engine vacuum leaking. Pull the large hose going to the vacuum operated brake booster and block off the hose end with a cork or other plug. Start the engine and see if it runs more smoothly. Set the emergency brake and put in gear--does it idle smoothly? If so, then you likely have a bad vacuum leak within the booster unit. Restore the vacuum hose to the cylinder and arrange to replace the cylinder.
the problem must be with the batteries. check the voltage levels of the battery using a voltmeter. if it goes lower that 10v and fast dying, then replace them. and also check the alternator charging the battery for any charging problem.
I need to get a clear mental picture of what exactly is happening.
With this said, you stated that the car "runs fine" until warmed up.
Q: When you start the car when cold it idles fine?
Q: If you allow the car to idle until "fully" warmed does the car stall?
Q: As the car begins to warm up, Does the RPM fluctuate abnormally?
Q: Does the car Only stall when you press on the gas pedal or does it stall just sitting and idling in addition to pressing the gas pedal?
Q: If you can drive it while cold does the car stall during acceleration when warm or only at Stop Signs / Lights?
Q: If you wait 20min or so, can you start the car again?
Q: How many miles are on the car?
Car dies when coming off acceleration or at idle in traffic or at a stop. I can watch the Tach go to 0 RPM, some times it will restart immediately other times it is hard to start, so far I have always been able to re-start it and Drive on. Does anybody have verified fix for this issue, I have seen posts saying can and crank sensor, throttle body, EGR, and many more ideas... Do not really want to just start replacing parts with the hope that I eventually get a fix. Help...