Misfire issue need help to minimize list of possibilities
10-27-2008, 04:34 PM
#51
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I had this identical problem ~6 weeks ago (misfires only under high load/high RPM shortly after installing a larger pulley). First thing that popped into my head was plugs, but after reading the plugged cat threads on here, I figured that was it. Checked the cats and they were fine. Checked the plugs and they gaps were off. Put in a fresh set of properly gapped plugs, and the problem went away.
very re-assuring
10-27-2008, 05:06 PM
#52
Glenn - With his plugs gapped at .41 and .45, 22 PSI is blowing out his spark causing the misfire.
They should be gapped at .34 - .38 max.
Why wouldn't his car be able to take the boost when others can?
This quote is right out of a repair handbook in my garage.
"Random misfires may be due to fouled spark plugs, plug gap too wide, bad plug wire, weak ignition coil, cracks or carbon tracks in an ignition coil."
This is a common problem on high boost cars.
http://www.google.com/search?hl=en&r...lows+out+spark
You are right, changing his pulley back to ASP would fix the problem....because it would remove 5 lbs of boost.
They should be gapped at .34 - .38 max.
Why wouldn't his car be able to take the boost when others can?
This quote is right out of a repair handbook in my garage.
"Random misfires may be due to fouled spark plugs, plug gap too wide, bad plug wire, weak ignition coil, cracks or carbon tracks in an ignition coil."
This is a common problem on high boost cars.
http://www.google.com/search?hl=en&r...lows+out+spark
You are right, changing his pulley back to ASP would fix the problem....because it would remove 5 lbs of boost.
Just razzing him JERRY!!!! He loves the attention. I lay off him when he breaks into the 12s.
10-27-2008, 06:05 PM
#54
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11-02-2008, 09:49 PM
#58
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Well misfire gone
It was as AMG-Jerry stated the plugs
Also much thanks to him and all who helped with installing my new plugs
Glenn let me know when you are ready
It was as AMG-Jerry stated the plugsAlso much thanks to him and all who helped with installing my new plugs
Glenn let me know when you are ready
11-03-2008, 04:12 PM
#60
11-03-2008, 04:18 PM
#61
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11-03-2008, 04:37 PM
#62
11-03-2008, 05:01 PM
#63
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W211 E55
11-03-2008, 05:11 PM
#64
Originally Posted by ChicagoX;3147322[B
]It's nice when it's the least expensive option that fixes the problem
Speaking of which, what is the recommendation for 1. Plugs and 2. Gap for those plugs?
Glenn
11-03-2008, 05:24 PM
#65
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11-03-2008, 05:29 PM
#66
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maybe between .33-.37
11-18-2008, 03:33 PM
#69
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Black on Black stock ' 03 C32
BTW: anything less than 93 in the C32, and it doesn't like it; just not the same car. (Not brand specific)
Just my .02:
11-18-2008, 05:03 PM
#70
I have had several cars in the last years, none as nice as My C32, but I have noticed that even the crappy ones will run better on Cheveron 93. The most finicky was a 96 Ford Windstar with the HO 3.8 V6. Changing nothing else but running Cheveron 93 it would run smooth at idle and pull even. Any other other brand, and it kind've trembled at idle, and slightly hesitated.
BTW: anything less than 93 in the C32, and it doesn't like it; just not the same car. (Not brand specific)
Just my .02:
BTW: anything less than 93 in the C32, and it doesn't like it; just not the same car. (Not brand specific)
Just my .02:
: Or you could run 89 Octane from this station and run a 13.2 
12-08-2008, 12:46 PM
#72
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I figured I give an update with a couple of pictures...lmao
Since plug replacement car runs fabulous with no misfires and the old way of thinking of running 89 octane fuel is out the window...thank God the fuel prices are quite a bit down I can save money now while before I had to visit the bank frequently.
Since plug replacement car runs fabulous with no misfires and the old way of thinking of running 89 octane fuel is out the window...thank God the fuel prices are quite a bit down
I can save money now while before I had to visit the bank frequently.
12-08-2008, 07:20 PM
#73
I figured I give an update with a couple of pictures...lmao
Since plug replacement car runs fabulous with no misfires and the old way of thinking of running 89 octane fuel is out the window...thank God the fuel prices are quite a bit down I can save money now while before I had to visit the bank frequently.
Since plug replacement car runs fabulous with no misfires and the old way of thinking of running 89 octane fuel is out the window...thank God the fuel prices are quite a bit down
I can save money now while before I had to visit the bank frequently.
