Check engine light 3.4 Camaro
Thread Starter
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Newbie
Joined: Jun 2010
Posts: 6
Check engine light 3.4 Camaro
Alright I'll try to describe the problem as best I can. When I start the car it runs good for about 10 seconds then a check engine light pops on and the idle lowers, and it runs rougher than it should and has inadequate power. I've checked the check engine light and it says something like ignition control failure. Thinking it could be the ignition control module under the coil packs I checked each spark plug wire for spark and all are receiving a spark, I then replaced anything that could effect the timing or ignition control, I've replaced the cam position sensor, crankshaft position sensor, and the knock sensor. None of these solved the problem. The next thing I'm going to replace is a fuel filter thinking the 10 sec of good running might be due to the large boost of fuel pressure in the line from the fuel pump pressurizing the line before the engine starts and then maybe it drops off and causes a lack in fuel throwing the check engine light. Please if you have dealt with this problem before, or if you have an idea of how to fix it, I would greatly appreciate some advice on what it might be.
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
If the check engine light is on you should take care of that problem, otherwise the engine might just keep running bad. What is the DTC number? You mentined the Ignition Module. Besides triggering the coils the ignition module also adjusts spark timing under control of the PCM. If the module does not receive or respond to the timing signals from the PCM, it goes into timing default mode and the engine will run poorly.
Thread Starter
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Newbie
Joined: Jun 2010
Posts: 6
ok, would the ignition control module not working trigger 10 sec after the car has been running though? I don't know how that works thats what strikes me as strange I would think if its working improperly wouldn't it effect the motor as soon as its running?
