Missfiring,Acceleration Hesitation, Run To Lean
10-15-2007, 02:41 AM
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Missfiring,Acceleration Hesitation, Run To Lean
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Hi All,
I Hope Somebody Her Can Help Me.
I POst This In Diverend Forum Nobody can Halp me.
I own A 99' Audi a6 2.8 liter. 98t miles
I have A Problem With My car the Started for 2 Weeks.
When My Car is hot i Always Have Acclesation hesitates, Missfiring. Idel goes up and down. But no code Service Lite is off. Is Changed Fuelfilter, Cleand the Maf Sensor, Changed Spark Plugs(White so i Think My car running to lean All 6 Spark plugs are White ).After i But New Spark plugs in a runns Fine for a Few Mile The The starts Again so i have to clean the spark plugs again.
How i Can find out What the problem is. Checked already For Vacum Leak But The Looks Fine.
I Hope Somebody Can Help me With my problem.
Hi All,
I Hope Somebody Her Can Help Me.
I POst This In Diverend Forum Nobody can Halp me.
I own A 99' Audi a6 2.8 liter. 98t miles
I have A Problem With My car the Started for 2 Weeks.
When My Car is hot i Always Have Acclesation hesitates, Missfiring. Idel goes up and down. But no code Service Lite is off. Is Changed Fuelfilter, Cleand the Maf Sensor, Changed Spark Plugs(White so i Think My car running to lean All 6 Spark plugs are White ).After i But New Spark plugs in a runns Fine for a Few Mile The The starts Again so i have to clean the spark plugs again.
How i Can find out What the problem is. Checked already For Vacum Leak But The Looks Fine.
I Hope Somebody Can Help me With my problem.
10-15-2007, 04:43 AM
#4
AudiWorld Super User
Ignition Coil packs are prone to faults on a 2.8 of that vintage but that will not cause the ....
lean running. Thatn is most likley coolant temp sensor as 4Driver4 suggested.
10-15-2007, 07:51 AM
#5
Be thorough with vacuum leak check - there are lots of small diameter hoses and they are all quite
brittle at that age and mileage. Hopefully the temp sensor is the issue, but if that doesn't remedy the situation double and triple check all those hoses! Good luck.
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10-15-2007, 12:15 PM
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Re: Missfiring,Acceleration Hesitation, Run To Lean
i am having the same thing ...just started happening, and when i am at idle for maybe 5 seconds she smoothes out again but there is that slight hesitation on beginning of acceleration, then good power, i am supercharged, thought it was an issue with it but sounds like it isn't ...thanks for the good info as always
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