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Reduced engine power warming came on yesterday, after driving in extreme cold temps, idled rough and the. started back up fine after sitting a few minutes. Drive today, in cold temps again, and drove fine until tonight. Same warning came on and also some trac control indicator? Idled and drove very rough. Will have it towed to dealer tomorrow, but any thoughts on this tonight? 2008 Pontiac G6. Also had a few issues w power cutting out totally once last winter and again this winter. Had a remote start installed last year, prior to the first problem and figured it was that? Engine light has been on and off for a few weeks now, but car has been running fine. 69K miles. 60 mile commute/day. Help!!

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  • Cars & Trucks Master
  • 3,904 Answers

Well...my ball park guess on this is just a tune up. The engine light is usually showing a misfire. If the plugs are bad then the cylinder is not igniting the fuel and it is flooding out. With what is here this makes sense to me. Let me know what it does turn out to be.

Posted on Jan 24, 2013

  • Lori D Jan 24, 2013

    WIll do, thanks!

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6ya6ya
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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: Engine will not idle and run when starting in cold weather

Have a mechanic take a look at your throttle position sensor and engine idle sensor. Make him manually adjust them as opposed to just putting in new ones. It may require that you have to have a higher idle than normal. Your underlying cause is going to be that I am sure you have a lot of miles on your engine.

Posted on Jul 20, 2009

  • 1071 Answers

SOURCE: Same problem

throttle is probably going out you can try to clean it but they are usually bad when the epc light is on

Posted on Aug 06, 2009

dj_relly999
  • 4070 Answers

SOURCE: sitting in car in parking lot with engine running

Hi and welcome to FixYa!
It is safe to drive and I assume that you are on limp mode. This is to restrict the speed to avoid further damage to the engine. You can be facing some sensor issues like the MAF (mass air flow) sensor or TPS (throttle position sensor). If one of these sensor is faulty the car tends to run sluggish, run rough or may even result to stalling.

Have the sensors replaced and observe how it goes. This can fix the issue.

Hope this helps and thank you for using FixYa! Have a good one!

Posted on Feb 17, 2011

  • 5370 Answers

SOURCE: 2002 Silverado 3/4T HD 4X4. Started

Yes its possible that fuel pressure is getting low or fuel filter is getting clogged or the O2 sensors are getting hot, O2 sensors when get weak, they get hot and loose communication with cars computer and due to that car stops controlling fuel and this can be problem.Also there are other possibilities like, faulty or dirty, IAC valve or dirty throttle body.Getting all this possibilities inspected, checked will point towards the cause of problem.--------- This should help.Thanks.Helpmech.

Posted on Sep 10, 2011

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