Low RPM Miss

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Aug 26, 2006 | 10:01 PM

2001 Pewter WS6

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From: Pittsburgh, PA

Low RPM Miss

What could cause a slight low RPM miss?? It doesn't feel like it is a dead miss like a wire that is off. You can feel it under light throttle especially when pulling out. Not very noticable at cruising speed and cannot feel it at all under WOT. Plugs are new and wires have about 5K miles on them. This is a new motor setup. Could a fuel filter or intake gasket cause this?? Plugs all looked great and were not fouled out.

Last edited by 2001 Pewter WS6; Aug 27, 2006 at 08:53 AM.

Aug 27, 2006 | 05:19 AM

Billiumss

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From: Erie, PA

Has it always done this or just recently?

Aug 27, 2006 | 05:49 AM

jerrypc

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From: newark delaware

I have the same problem with my 99 C5. It came after i found a bent pushrod which was replaced, but the miss is still there. Are you getting the p0300 code?

Aug 27, 2006 | 07:34 AM

theblur98ss

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From: East Brady, Pa

I had a similer problem a couple years back and it turned out to be a bad O2 sensor. With any luck it will get worse and throw a code.

Aug 27, 2006 | 09:08 AM

2001 Pewter WS6

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It seems like it has just recently started, but then again I haven't driven the car in a while. The pushrods are new and are hardened, the injectors are new, the O2's are new as well. They are the rear corvette bosch ones. The car is now in SD mode so the STFT are disabled so I doubt the O2's are the problem. I have the A/F running at 13.9 at idle and just off idle. Is that too lean, I see people shooting for 14.7 at idle.