Rough idle problem When engine light comes on

[Slick2005]

My car runs normal with a normal idea when the Engine Light is off. When ever you are in transit and the engine light comes on the car will like too die at a complete stop. I put on foot on the brake pedal and give it gas so it doesn't die. Sometimes I would pull over and just turn off switch to stop engine and restart it. It seems flooded for 3 or 4 secs then it starts and runs fine with engine light is off. I already replace the MAP sensor. Also, I have lost power going up hills and kicks sometimes. My question is what does the community think the problem could be and resolve it?

[sierrap615]

what year/model?

do you do a lot of hilly driving?

[SleeperSaturn]

You probably tried this...Get it scanned. The fact the your engine light is on meens you have a sensor malfunction and data should be stored in to computer. Maybe cam/crank position sensor?

[Slick2005]

I own a Snap-On Automotive Diagnostic O-scope and checked compression, voltage, dwell graph, RPM's, and fuel injection.

Next with a DMM, I measure the resistance on each fuel injection terminal to verify that I have 2.8 to 4.0 ohms across the fuel infectors. Then I took out each one to check for carbon build-up. The only thing I came across was the ICA voltage was incorrected when key switch was on. I have replace that item and so far it has fix the problem.

Yes, I do have a code retriever and nothing electrical doesn't come up with an error or malfunction. Yes, I believe the problem with not enough power for larger hills could of been the emission problem I had with my fuel injectors. I bought some lucas fuel injector cleaner and it did the job with the composites that was house on the injectors. So now I do feel a increase in power. Thanks community and I hope my problem will solve someone elses problem also.