just looking for ideas of what would cause an sr20det to run really rich? car is boggin because of too much fuel runs like crap from idle to around 4000rpms and then runs fine under boost.swapped eng coolant temp sensor, MAF, TPS, O2, engine harness, injectors, coil packs, ecu, checked grounds ... car was running fine earlier today. went to the body shop 1 hour later the car runs like @$$. so looking for ideas anyone have and educated one? got some other ideas and extra parts so im gonna start swapping again tomorrow, but just wanted to get some more input.
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yay! another problem
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Originally posted by PennymanI don't know much, but I would start with the mass airflow sensor, that made my car fail smog here in CA because it was runnning too rich. Just a suggestion.
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Originally posted by JaggorriWhen were all of these parts changed and did the problem occur after said changes?
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Originally posted by CRASHDRIVEEvery considered checking the Timing?
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Originally posted by daefuel pump?
dont think a bad fuel pump would cause a car to run rich... it would make it lean out but if the regulator was set wrong or going bad it could cause that... but yea thats also been swapped out... plus if it was bad you would have fuel in the vacuum line. there wasnt any but i swapped it out cuz i had a extra one laying around
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i might have the answer to all your problems
well i took my 240sx sr20 to the dyno and it ran rich so the specialist told me and the reason why is becuase i needed a upgraded fuel pump and upgraded fuel injectors.
But with those two things you might as well get a fuel pressure regulator and a fuel rail to handle the bigger fuel injectors.
I myself am goin to be running a 255lb fuel pump, jdm fpr, 550cc fuel injectors, and hks fuel rail and of course you need a SAFC, and have the professional tune you engine. hopefully that you get you going.
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