No MAF sensor?
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Junior Member
Joined: Apr 2007
Posts: 45
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No MAF sensor?
I was reading around a bit and saw that in 1990 they stopped using MAF sesnors in the firebirds...My trans am is throwing a code saying there is high voltage at the MAF sensor...but it doesn't have an MAF sensor, i already checked. So i don't know what is up with my car,any help?
Senior Member
Joined: May 2008
Posts: 722
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From: SF bay area
Car: 86 Camaro iroc-z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3.42 Posi
Re: No MAF sensor?
i believe its because in 1990 our cars changed from MAF to SD which is speed density, therefor it doesnt use the MAF infront of the throttle body
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: No MAF sensor?
You need to check your codes against a list for 1990, instead of an earlier year.
Member
Joined: Dec 2001
Posts: 456
Likes: 4
From: Concordia, MO, USA
Car: 89 Formula, WS6
Engine: LB9/peanut cam :(
Transmission: 700R4
Re: No MAF sensor?
IIRC, the same code numbers for maf hi/lo correspond to a maP signal being high or low.
I'd also include the code number in post about an error code. It is sort of diagnostically useful information.
Check that the map sensor wires, and vacuum line, are connected, and in good condition.
I'd also include the code number in post about an error code. It is sort of diagnostically useful information.
Check that the map sensor wires, and vacuum line, are connected, and in good condition.
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