Turbo Spark

[farfromsane]

i think there is something wrong with my computer and or vam ivee tested the vam as per stinger performance and it is shot, but my timeing doesnt advance with or without spout connector plug in. is this a problem with my computer and could the vam be fine?? the donor car didnt have a windshield in it so their is probable moisture damage... im researching standalone computer or tuner to just run maf from stang ....
thanx guys

 

[scotts90ranger]

how do you test the VAM? I need to rule mine out...

 

[farfromsane]

tech

"VAM Testing Procedure
Used to detect faulty/out of adjustment VAM.

Testing for DC Voltage with your negative (-) lead on the signal return wire and probing wires below with the positive lead:
VREF (orange) = 5.0-5.1v
VAT (light green/purple) = ~2.8v @ 70*F
VAF (white/black) = ~.25v @ 0%, 4.5v @ 100%, .8v-1.0v at warm idle (this varies on idle speed)
You must also make sure that there are no dead spots (0 volts) when the door sweeps from .25v to 4.5v. If this is the case then the VAM is shot"
Stinger pereformance has lots of tech articles that help a lil more than the ones on trs.... thiers also TPS Adjustment
IAC Cleaning & Adjustment
Base Idle Reset
Timing Belt Replacement
Timing Adjustment
Timing Adjustment/Reset w/o Timing Cover
A/F Gauge Install
VAM Testing Procedure
Future Articles