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Discussion in '1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-' started by 351wcoupe, Jan 28, 2004.
I have a few codes if anybody has an OBD1 codebook handy?
Can't find mine.
23-Closed throttle TP (Throttle Position) sensor voltage out of range. Suspect TP sensor.
28-Vane Air Temperature out of range.
64-ACT or VAT sensor voltage too low, indicates intake temp air temp greater then 250degF.
81-Boost control circuit failure.
82-2.3 Turbo. Check EDF signal to Integrated Controller for short to ground.
I set the TPS @.9V and I put it on my sensor tester and it seemed ok.
Does "28" mean there's a problem with the VAM? Should I try another one?
I don't even remember it having an ACT Sensor????
Could "81" be because I haven't wired the premium switch?
"82" Scares me('cause I've never heard of it) Whats EDF? and whats the circuit do?
TPS is fine if it's in the .9-1.0 range at idle and doesn't have any dead spots.
It means the vat (air temp) inside the vam is reading funny. If you have a spare vam you could try it out.
It better have an ACT if it's got an LA3.
81 is the stock BCS is no longer hooked up...that's a good thing
82 You have your fan wired to a switch rather than the stock setup I assume?
I'll get back wth you on this.