Hey guys I still need help with eng. light problem. I found out today (after installing new AC Iridium plugs) I still have a miss fire in cyl. # 4. DIS system Maybe? Any ideas?

 

A guess, cylinder head. A compression test would verify.

 

Mine came on like that also you can try what i did. I switched 1 and 4 and then clear it and then see if it comes back on.


phillip

 

Ok ..give it a try...thx phillip

 

Well phillp i tried swithching cyl 1 and 4, still no better, i even have traction control light on now......puzzled. Thx for the help though.

 

When you swapped 1 and 4, did the miss move with the swap or stay in the same cylinder.

If you have both the service engine and service traction control lights on, which codes are set?

 

hey i'm new and can't find a way for new post sooooooooooo here i am. just installed a new jet 2 chip (ez) car runs way better but the engine lite came on. jet sez send it back i'm thinkin the computer is learning and lite will go off. is this dangerous to run with lite on ?

 

Dangerous to run with the light on??? I always love these type of questions becasue on car forums you get 1 or several standard answers..

1. Usually from a mechanic for a dealer ect... Yes.. Bring it right in something major could be wrong and cause engine damage over time.

2. usually from a car owner short on funds for a repair.. Nah I have driven with the light on for 2 years and never experienced a problem with the car in anyway.

3. from the SmartA!!... If you own said car... and the engine light is not on the car is not running...


That said I have a Saturn with over 200,000 on it and my EGR valve went kaboom at about 150,000. they want 175.00 dollars for the part from the dealer and at the time i didnt have it so i kept driving it. 50,000 miles later the light is still on and the car still runs perfectly and gets 33 MPG on average.

All told todays cars have so many sensors and the tolerances for setting off a code are so slim that one can usually drive the car for a long time without any noticable effects to driveability. If outside of warranty go down to the auto parts store and get the code read for free and use common sense as to whether repairs need to be made ASP or if you can wait.