Car dies after plugging in MAF
#1
Car dies after plugging in MAF
friend of mine has a factory 92 5spd...it was sitting for a couple months and when we went to start it up, the car would run/idle without the MAF connected but once connected, the car dies out completely.
he's rebuilt the ECU and has tried 2 different MAF's, all of which brought no luck
any ideas/suggestions on what could be happening/causing this?
he's rebuilt the ECU and has tried 2 different MAF's, all of which brought no luck
any ideas/suggestions on what could be happening/causing this?
#3
Lexus Champion
iTrader: (10)
Moved to performance and maintenance section.
no don't try the 12v fuel pump mod, that has nothing to do with the maf. if it is running at all you have spark and fuel, it is clearly a sensor or electronics issue if it clears up when disconnecting the maf.
This really does point to a faulty maf or some other sensor. did the other maf you tried work before or do you guys not know. can't rule out a bad maf if you are not sure the replacement works.
no don't try the 12v fuel pump mod, that has nothing to do with the maf. if it is running at all you have spark and fuel, it is clearly a sensor or electronics issue if it clears up when disconnecting the maf.
This really does point to a faulty maf or some other sensor. did the other maf you tried work before or do you guys not know. can't rule out a bad maf if you are not sure the replacement works.
Last edited by Ali SC3; 10-08-13 at 02:17 PM.
#5
Moved to performance and maintenance section.
no don't try the 12v fuel pump mod, that has nothing to do with the maf. if it is running at all you have spark and fuel, it is clearly a sensor or electronics issue if it clears up when disconnecting the maf.
This really does point to a faulty maf or some other sensor. did the other maf you tried work before or do you guys not know. can't rule out a bad maf if you are not sure the replacement works.
no don't try the 12v fuel pump mod, that has nothing to do with the maf. if it is running at all you have spark and fuel, it is clearly a sensor or electronics issue if it clears up when disconnecting the maf.
This really does point to a faulty maf or some other sensor. did the other maf you tried work before or do you guys not know. can't rule out a bad maf if you are not sure the replacement works.
i'll see if we can get someone local with a 92 SC300 to swing by and test theirs. thx!
#6
Racer
iTrader: (6)
What ended up being the problem here? I'm having a similar issue. MAF plugged in, the car runs like ****. Sputters down low and clears up in the mid range to pull hard. Replaced it with a MAF from aliga and I have the exact same problem.
The only time a CEL shows up is when the MAF is unplugged, and its accompanied by the TRAC light. No lights at all when the MAF is plugged in and it's tricky to diagnose.
The only time a CEL shows up is when the MAF is unplugged, and its accompanied by the TRAC light. No lights at all when the MAF is plugged in and it's tricky to diagnose.
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#8
Racer
iTrader: (6)
MAF unplugged and despite the CEL and TRAC lights being on, and getting horrible gas mileage, she runs perfectly.
Anything in the MAF wiring that could be wrong? WHen I swapped the parts I only changed out the sensor itself, not the metal housing. Is there any reason the metal housing would cause an issue with the computer reading the MAF?
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Allaretake
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