I need help

[12SecGSR]

my car is having an intermitten problem I cant figure out...
I returned my fuel system back near stock to try and eliminate possibilities... right now I am using stock injectors, vortech regulator, crane hi6 ignition, and crane ps92 coil...

ok.. my car has a bad missfire problem in vacuum... makes it nearly undrivable in vacuum, runs good under boost (maybee a miss now and then)... sometimes it will run just fine...

I dont know what could cause an intermitten problem like that.. the plug wires are NGK's that arent too old, but I put a big thick fuel line on all of them to eliminate the possibility of them leaking a spark, I changed the ignition rotor, the cap is a little old, but it looks good (msd), the fuel filter only has 20K on it, the fuel pressure is about 32 psi at idle under vacuum, ~40 psi at no vacuum, and about 150 under boost, I changed the sparkplugs and gapped them to 30, this has happened with different gas tanks, so it shouldnt be bad gas... my car was running like a champ and then all of the sudden started running bad...

I guess it could be bad distributer (although the tach doesnt seem to jump) a bad ignition box, a bad coil...

I need help! what do you guys think? any ideas?

[CivicR]

I would definately check out the hi-6 and the coil...maybe you might want to take them off to...and dont rule out the spark plug wires...maybe you have a friend that can let you swap wires with them so you can make sure its not them...good luck!

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John
B18C1 Powered 95 Civic EX Coupe
H22A Powered 92 Civic VX Hatch(In the works)
88 CRX HF(Coming soon)

[INTEGRA LSSC]

you are hitting 150 psi fuel pressure(wot) on stock injectors? can they take that much?

[This message has been edited by INTEGRA LSSC (edited May 01, 2001).]

[12SecGSR]

yeah, I havent had a problem with the stock injectors before.. I am not running that high right now, because the car is missing.. I did have a problem with an RC disc injector... it seems one is stuck open or something, because one cylinder is rich... the rc's are on there way back to rc right now for repair