Canadian1968
Well-Known Member
I had this problem last year , and a new set of plugs seemed to clear it up ?
This year its back again. It's a misfire at very light throttle , or as I roll into power. The harder I accell the less it is. I can watch my wideband, it show up on the AF gauge as lean spikes , and you can feel the power hit and miss as I try to accell.
I got home from work today left the car running got out to check things out. I did notice the fuel filter was almost empty , I could barely see fuel coming into it.
This is a brand new filter I just put on the night before. When I started it up last night , filter filled up no prob.
My next thought was vapor lock, I've never really had a problem with it though. Also I tured the car off and was able to fire it right back up, no problem. So not sure about that .
I also pulled the fuel pump pushrod out to check it , all good at 3.22"
I'm not sure what direction to go with next trouble shooting. Could be a bad fuel pump? Some carb tuning ? Something ignition related . I just don't know which way to go.
The only change over last year, was I did pull the heads and did a port job on them, also a new voltage regulator. New set of plugs when the heads were put back on. That's about it .
This year its back again. It's a misfire at very light throttle , or as I roll into power. The harder I accell the less it is. I can watch my wideband, it show up on the AF gauge as lean spikes , and you can feel the power hit and miss as I try to accell.
I got home from work today left the car running got out to check things out. I did notice the fuel filter was almost empty , I could barely see fuel coming into it.
This is a brand new filter I just put on the night before. When I started it up last night , filter filled up no prob.
My next thought was vapor lock, I've never really had a problem with it though. Also I tured the car off and was able to fire it right back up, no problem. So not sure about that .
I also pulled the fuel pump pushrod out to check it , all good at 3.22"
I'm not sure what direction to go with next trouble shooting. Could be a bad fuel pump? Some carb tuning ? Something ignition related . I just don't know which way to go.
The only change over last year, was I did pull the heads and did a port job on them, also a new voltage regulator. New set of plugs when the heads were put back on. That's about it .
