Lately my car has been acting funny.

On startup, (mainly cold starts) the idle is low for a second then jumps right up to normal rpms.
While driving, idle drops just a tad when going to a stop.

I was thinking that maybe it was the IAC or map but the idle drop is more apparent when the radio,headlights,ac, etc is on.

Last week I was driving all night and I remember having the radio, headlights, and GPS plugged in and stopped by the gas station and my car took FOREVER to turn back on. It would crank for a while but just wouldn't start. Once it did start, the idle was low to the point I had to give it some gas and turned off everything except the headlights.

Eventually the issue wasn't as bad after turning off everything which made me think it actually is an electrical issue. What do you guys think?

 

Was there work done prior to this happening?

 

No. I have changed the IAC, map sensor, throttlebody, and battery. So it shouldn't be any of those. But I had the dropping idle even before then.

 

" possible ground issue? "


Are you suggesting hinky wiring connection(s) to ground? I suppose you could simply remove & clean every grounding point. On the engine and on the body. Also, might want to check all the wiring terminal connectors. Maybe, use some Deoxit on the female & male brass contacts?


Won't hurt, I don't think...



Good luck!
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