MAF *stuck* at .4 Volts?
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TECH Regular
Joined: Aug 2005
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MAF *stuck* at .4 Volts? Used the cheapy scanner at Murray's to scan for why I was getting a MAF/VAF low voltage code and when I got down to the MAF reading, it didn't change with my throttle blips.
Sooooo... dropped in a KNOWN good MAF from another car and ..same thing?
I am thinking perhaps there is a short somewhere in that line as I have had the Eng Sensor fuse pop a few times. Thing is, where the hell does this thing run off to? It seems to go into a large harness and disappear.
Sooooo... dropped in a KNOWN good MAF from another car and ..same thing?
I am thinking perhaps there is a short somewhere in that line as I have had the Eng Sensor fuse pop a few times. Thing is, where the hell does this thing run off to? It seems to go into a large harness and disappear.
TECH Senior Member
Joined: Dec 2001
Posts: 5,399
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From: Jacksonville, FL
If the code is P0102 low frequency and you're popping the ENG SEN fuse look for other things on that circuit too - skip shift, reverse lockout solenoid, MAF and 02's share the same fuse. Since you have LTs I'd start with the 02 sensor harnesses, maybe you have an intermitent problem with one arcing somewhere.
Thread Starter
TECH Regular
Joined: Aug 2005
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I'm just retarded actually 
I did have an O2 wire that was rubbing. I fixed it and checked all of my fuses (or so I thought). Cleared the codes at Murray's and went home.
Started it up and BAM! SES light again. This is where I go retarded.
I never replaced the ENG SEN fuse under the hood. DERRRRRRRRRR Popped in a new 20 amp.... cleared codes VOILA
I did have an O2 wire that was rubbing. I fixed it and checked all of my fuses (or so I thought). Cleared the codes at Murray's and went home.
Started it up and BAM! SES light again. This is where I go retarded.
I never replaced the ENG SEN fuse under the hood. DERRRRRRRRRR Popped in a new 20 amp.... cleared codes VOILA
