2nd Generation Specific 1986-1992 Discussion

Ok, So Here Is The New Problem..

Old 02-13-2004, 10:40 PM
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If anyone remembers i posted about my car ****** up on me when driving, and i assumed it was the fuel pump. I was correct in a way. There was some sort of short or a bad ground or something that caused the fuel pump to not be getting any power. I replaced the fuel filter, dropped in a walbro highflow 255 fuel pump, checked all relays to the fuel pump and all wiring, all is in good order and the fuel pump is now working properly. We did a compression test and i got an average of 93-95psi on both rotors. We've checked all relays and wiring, and everything is intact, i get no CEL at all. Now, the car will start up, BUT it will die out quickly, as if flooded. The primary injectors were blueprinted/balanced by RC engineering less than 3k miles ago, by the previous owner, but the secondaries were not. I dont know why not, but they werent. What could the problem be now? We checked the crank angle position sensor to make sure the injectors were getting signal, and form that point, they are. and i also checked for any vaccum leaks or popped off hoses. Im not sure what else is left to check. Does anyone have any ideas of what it might be now?
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Old 02-13-2004, 10:55 PM
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i also forgot to mention, the car does struggle to start. alot
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Old 02-13-2004, 11:06 PM
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Did you upgrade the injectors or do u leave the stock ones? If you have the stock ones I think you need upgrade the injectors as well since I don't think stock injector will handle to much fuel. Correct me if Im wrong.



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Old 02-13-2004, 11:11 PM
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a walbro with stock injectors is perfectly fine, i have 0 fuel problems with my walbro.



as for your problem, it could be leaky secondaries.



is the engine actually flooded or does it just act flooded? youve had rotaries before so i figure you know how to check for severe flooding (remove sparkplug etc)



if it is indeed flooding ill have to say your secondaries are leaking. HStruggling start may be caused by excessive fuel when trying to start it.



I figure to get it to start you hold the gas pedal down? If it starts when you do that its definitely due to excess fuel that youre having troubles because youre adding more air to the mix.



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Old 02-13-2004, 11:38 PM
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i checked the plugs, dry as a whistle. I dont have to give it any gas for it to start. just takes a while to actually start, and when it does, it goes dead.
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Old 02-13-2004, 11:40 PM
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Originally Posted by Benny' date='Feb 14 2004, 12:38 AM
i checked the plugs, dry as a whistle. I dont have to give it any gas for it to start. just takes a while to actually start, and when it does, it goes dead.
hmm sounds like its not actually flooding then.



did you check your coil packs? i think theyre known to fail after time.



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Old 02-13-2004, 11:43 PM
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are you getting spark? something similar was happening to me and i took the plugs out and i held them next to a screw driver while my friend cranked it and the leading coil wasnt firing at all... after a bit of banging and cursing it they started working magically
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Old 02-13-2004, 11:43 PM
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coil packs are fine
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Old 02-13-2004, 11:44 PM
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**** haha scratch my post then
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Old 02-13-2004, 11:46 PM
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Originally Posted by Benny' date='Feb 14 2004, 12:43 AM
coil packs are fine
are your injectors giving gas at all?



cause if you got spark, and you got intake, you only need fuel.



so since you established spark and intake, fuel is the only element left.



I think it dying out quickly is mroe of a running out of gas problem rather then a flooding problem in this case.



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