maf problem
#1
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Location: Columbia, MD
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maf problem
My 89 L98 engine shows a 33 code soon after start up. Using the
factory trouble shooting procedure there is no problem found.
replacing the maf with a known good one after erasing the 33 code still results in a 33 code and putting my maf sensor in the doner car does not cause a code. The sensor output wire is continous to the ecm pin. . the dc voltage to the ecm pin stays at 5.0 volts regardless of rpm. Does this point to a problem in the
ecm box or the eeprom?
factory trouble shooting procedure there is no problem found.
replacing the maf with a known good one after erasing the 33 code still results in a 33 code and putting my maf sensor in the doner car does not cause a code. The sensor output wire is continous to the ecm pin. . the dc voltage to the ecm pin stays at 5.0 volts regardless of rpm. Does this point to a problem in the
ecm box or the eeprom?
#6
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Car: 88 GTA
Engine: 305 LB9
Transmission: T5
My code 33 was driving me crazy. Long story short, correctly setting the TPS (mine was at 3.5 @ WOT instead of above 4) solved the problem. Haven't set the code in months. Good luck.
Kevin
Kevin
#7
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Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Could be your MAF relay. With your car off, remove the ducting to the MAF sensor (but leave the MAF wiring harness connected) and look at the heating element/wire inside the MAF. If it's glowing your relay is bad and this can set a code 33. I had this happen to me, drove me nuts....and a new MAF realy fixed the problem! Good luck.
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#8
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Car: 1989 Firebird T-Top
Engine: 350 TPI
Transmission: 700R4
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