88 MAF voltages
Thread Starter
Instructor
Joined: Dec 2009
Posts: 107
Likes: 0
From: Bowmanville ont
88 MAF voltages
I am checking MAF voltages to try and fix this thing.I have a code 34.The middle green wire has 4.95v.I found the outside wire(black)is a ground.The wire between these two is violet/black stripe and has no voltage,but when I put the probe on it it goes -1v does that mean this wire is shorted?Is this wire supposed to have 12 volts?I am checking this with the key on/engine off.I cannot get 12 volts anywhere on the MAF plug.Sugestions please.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Put a +12 volts to pin "G" on the ALDL then check your MAF voltages again. Hooked up normally you have to run +12v power to pin "G" on the ALDL...the test plug on the drivers side hush panel (the bypass to "G" powers the fuel pump circuit/MAF) while using a voltage probe/meter to check the wires at the MAF plug wires for the proper voltages.
Trouble with the MAF: Replace both the power and the burn off relays before changing/replacing the MAF itself. Look inside the MAF housing to ensure that the filiment is still intact....if no wire is present then it is time to buy a new MAF.
Trouble with the MAF: Replace both the power and the burn off relays before changing/replacing the MAF itself. Look inside the MAF housing to ensure that the filiment is still intact....if no wire is present then it is time to buy a new MAF.
Thread Starter
Instructor
Joined: Dec 2009
Posts: 107
Likes: 0
From: Bowmanville ont
Put a +12 volts to pin "G" on the ALDL then check your MAF voltages again. Hooked up normally you have to run +12v power to pin "G" on the ALDL...the test plug on the drivers side hush panel (the bypass to "G" powers the fuel pump circuit/MAF) while using a voltage probe/meter to check the wires at the MAF plug wires for the proper voltages.
Trouble with the MAF: Replace both the power and the burn off relays before changing/replacing the MAF itself. Look inside the MAF housing to ensure that the filiment is still intact....if no wire is present then it is time to buy a new MAF.
Trouble with the MAF: Replace both the power and the burn off relays before changing/replacing the MAF itself. Look inside the MAF housing to ensure that the filiment is still intact....if no wire is present then it is time to buy a new MAF.
Team Owner
Joined: Jan 2003
Posts: 20,304
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From: Summerland B.C. Canada
