Installed new valvesprings, now a slight misfire...
09-17-2003, 11:50 AM
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Installed new valvesprings, now a slight misfire... I installed a new set of 941s last night. The idle seems a little rougher and I can hear and feel a stutter when I accelerate. I originally thought it might be a vacuum leak but the idle isn't any higher, it just surges between 700-800. No noises, aside from the 941s. No SES light either. Maybe ignition related? Bad plug wire, cracked plug?
EDIT: BTW, I made a tool like Tally TransAm's for swapping the springs. 3 words: Best. Tool. Ever.
EDIT: BTW, I made a tool like Tally TransAm's for swapping the springs. 3 words: Best. Tool. Ever.
09-17-2003, 04:33 PM
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Re: Installed new valvesprings, now a slight misfire... Could be something as simple as a loose plug wire causing a misfire...
Do you have a scan tool like AutoTap or EFILive to check?
Do you have a scan tool like AutoTap or EFILive to check?
09-17-2003, 10:38 PM
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Re: Installed new valvesprings, now a slight misfire... I Autotapped this afternoon and came up with PO101, a MAF frequency code. That's the same one I got when I had my first broken valvespring. There are no abnormal noises though. I notice the idle is a little rougher than it usually is with the cam. When I'm cruising in any gear, it's very smooth. When I go past a certain amount of throttle in any gear, I can hear through the exhaust that it's misfiring and the whole car bucks & shakes. I can't find my car adapter for my laptop so I can't watch what happens when I do that. One of my buddies is going on a ridealong with me tomorrow.