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Idle Problem (loosing revs).

720 views 4 replies 5 participants last post by  makingwaves 
#1 ·
Hey guys, I have a problem on my 2000 9-5, when i put the car in drive and lets say im at a stop light so my foot is on the break, the engine looses revs. (like its out to stall, I have an Automatic), the the revs. go back to normal, it does this about three of for times. Also I have noticed that the lights dim at the same time. If I put the car in Neutral it stops. This only happens when its in drive and im at a standstill. Has this ever happened to anyone else. Could you, pleas help?
 
#2 ·
Last time that happened to me, my car had gone into limp home mode. But you would have a cel if it was in limp home mode. I changed out my spark plugs and all was good.
When was the last time you cleaned your throttle body, changed the plugs, fuel filter, air filter and/or cleaned the maf and map sensors?
 
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