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Idling problem for 997 3.6liter

  #1  
Old 06-14-2008, 04:00 AM
Thread Starter
Join Date: Jun 2008
Posts: 4
Default Idling problem for 997 3.6liter

I have a 997 porsche 2004and after car wash i have a idling problem the work shop told me the MAF sensor problem but i don't believe in them because i have no problem with the acceleration.. the car will misfire when the car is idle..

Anyone encounter this problem?
 
  #2  
Old 06-16-2008, 09:40 AM
Join Date: Sep 2007
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Posts: 611
Default RE: Idling problem for 997 3.6liter

Do you have an "Engine Warning Light (Orange ) showing"? The Mafs is a potential cause if you got a lot of water around and into theAir Intake, as it could contaminate the "hot wires" in the MAFS.If it was any other electical fault on the ignition side, it would have dried out after the engine heat got to evapourate it off.
MAFs are not that expensive.
Did the Workshop run the Diagnostics on the car before they said it was the Mafs?
You need the Engine Diagnostic Check to be sure and toknow the right direction to investigate, so if they have not done a diagnostic check on your car, at least pay for that and see what that shows.
Regards Big Bob
 
  #3  
Old 06-19-2008, 03:11 AM
Thread Starter
Join Date: Jun 2008
Posts: 4
Default RE: Idling problem for 997 3.6liter

ORIGINAL: Big Bob

Do you have an "Engine Warning Light (Orange ) showing"? The Mafs is a potential cause if you got a lot of water around and into theAir Intake, as it could contaminate the "hot wires" in the MAFS.If it was any other electical fault on the ignition side, it would have dried out after the engine heat got to evapourate it off.
MAFs are not that expensive.
Did the Workshop run the Diagnostics on the car before they said it was the Mafs?
You need the Engine Diagnostic Check to be sure and toknow the right direction to investigate, so if they have not done a diagnostic check on your car, at least pay for that and see what that shows.
Regards Big Bob
Thanks for the help..Yes i have the orange light showing..

I currently have the PST2 and i kenot check the fault is there any upgrade..?

 
  #4  
Old 06-19-2008, 03:34 AM
Join Date: Sep 2007
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Posts: 611
Default RE: Idling problem for 997 3.6liter

ORIGINAL: stanlim

Thanks for the help..Yes i have the orange light showing..

I currently have the PST2 and i kenot check the fault is there any upgrade..?
Sorry I do not have enough knowledge re PST2 regading upgrades.
Can I suggest that you let your Dealer do the diagnostic and take it from there.
Regards Big Bob
 
  #5  
Old 06-19-2008, 05:04 AM
Thread Starter
Join Date: Jun 2008
Posts: 4
Default RE: Idling problem for 997 3.6liter

Thx Bob..

They tell me that the crankshaft is the problem..
Will it be the possibility..?


 
  #6  
Old 06-19-2008, 06:19 AM
Join Date: Sep 2007
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Posts: 611
Default RE: Idling problem for 997 3.6liter

There is an engine timing sensor that operates off the Crank/Flywheel so that the revoltion of the engine is recognised for the electronics. It could be a sensor problem in this area giving faulty data and hence the symptoms you are experiencing.
Regards Big Bob
 
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