dyno.. A/F 15.1
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12 Second Club
Joined: May 2005
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dyno.. A/F 15.1 [IMG]
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last time i dynoed i did 267/304 with my A/F at 11.5. that was over a year ago.
this time around i bested 264/280
for the last 8 months my car has had a high rpm miss/stumble that has gotten worse over time.
and now is throughout the entire rpm.
i have pulled all of the plugs, ended up replacing 2. 1 had a broke strap and the other the porcelain was in 20 pieces.
wires are good also, well to the best of my knowledge.
tomorrow morning i am going to put a fuel pressure gauge on it, change the plugs out agian. and go from there.
one more thing, the first time i take the car out and go WOT it pulls fine. but once up to temp it starts actin up at WOT.
so, what do u guys think? please give me some insight as i would really like to get this car figured out.
[/IMG] last time i dynoed i did 267/304 with my A/F at 11.5. that was over a year ago.
this time around i bested 264/280
for the last 8 months my car has had a high rpm miss/stumble that has gotten worse over time.
and now is throughout the entire rpm.
i have pulled all of the plugs, ended up replacing 2. 1 had a broke strap and the other the porcelain was in 20 pieces.
wires are good also, well to the best of my knowledge.
tomorrow morning i am going to put a fuel pressure gauge on it, change the plugs out agian. and go from there.
one more thing, the first time i take the car out and go WOT it pulls fine. but once up to temp it starts actin up at WOT.
so, what do u guys think? please give me some insight as i would really like to get this car figured out.
Thread Starter
12 Second Club
Joined: May 2005
Posts: 164
Likes: 0
i am hoping someone can look at it and possibly had the same problem. and can lead me in the right direction.
i am leaning towards opti or fuel pump.
opti because of the missing/stumbling.
and fuel pump by looking at the A/F.
tuning is not the answer right now, there is a reason the A/F is that out of whack.
i am leaning towards opti or fuel pump.
opti because of the missing/stumbling.
and fuel pump by looking at the A/F.
tuning is not the answer right now, there is a reason the A/F is that out of whack.
definitely sounds like a dying fuel pump.... when it gets hot (ie car warms up) it gets even worse.... classic fuel pump issues.... what does it sound like when you turn the key to prime the pump... a good pump will be pretty loud. a dying pump will kinda sound like a dying bee.....
