Help! Massive backfires and not pulling hard
#1
Z06 powered FD
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Help! Massive backfires and not pulling hard
Just recently my car started backfiring alot when it's cold. I can rev it up to 1500rpm and it will backfire atleast once when I let off, sometimes it does 2-3 times! It will also periodically do it after it's warmed up.
The car doesn't pull near as hard as it used to either and really drops off after 6k rpm.
Boost is the same. My air/fuel ratio seems normal. You can tell the car isn't as peppy but it's not bad until I get on it. Got new plugs (stock NGK) a couple of weeks ago and wires(NGK) are only a year old.
Only thing I can think of is maybe a weak/bad coil but the old plugs looked normal. This is my only car!
Any suggestions? Previous experiences?
The car doesn't pull near as hard as it used to either and really drops off after 6k rpm.
Boost is the same. My air/fuel ratio seems normal. You can tell the car isn't as peppy but it's not bad until I get on it. Got new plugs (stock NGK) a couple of weeks ago and wires(NGK) are only a year old.
Only thing I can think of is maybe a weak/bad coil but the old plugs looked normal. This is my only car!
Any suggestions? Previous experiences?
#2
I dont have any idea on what the problem could be but i know a RX7 mechanic in Florida who might be able to give you some feedback. He is a friend of mine and you find him on AOL Instant Messager. HE is really nice and im pretty sure he will be happy to help you.
his AOL AIM name is: renegaderacin
Good luck
Saul V
his AOL AIM name is: renegaderacin
Good luck
Saul V
#3
Sounds normal if performance doesn't suffer. Mine pops like crazy, sometimes with a staccato/machine gun sound when the throttle is blipped when cold. Just occasional shifting backfire when warmed up.
Do you have a lot of soot in your tailpipe?
Do you have a lot of soot in your tailpipe?
#4
Z06 powered FD
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Thanks Muzik but I don't have AIM anymore. Guess I need to download it again.
Toadman, my performance does suffer. It used to run badass but once it started doing this it runs like crap. Nothing over 6k, it just quits pulling.
Toadman, my performance does suffer. It used to run badass but once it started doing this it runs like crap. Nothing over 6k, it just quits pulling.
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#9
WTB** Very Low Miles 94-95
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beware...that is not normal....
i watched a tech from xs at the track blow his motor when it was running like that.
i dont know what the prob is though...sorry
j
i watched a tech from xs at the track blow his motor when it was running like that.
i dont know what the prob is though...sorry
j
#11
Z06 powered FD
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I changed the plugs to see if it would help, no such luck. Boots are on good. Vacuum reads between 0.5 - 0.7 at idle, usually right at 0.6.
Guess I'll get a compression test done. Pray for me guys.
Guess I'll get a compression test done. Pray for me guys.
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