VATS issue
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11 Second Club
Joined: Dec 2007
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From: Charleston, SC
VATS issue UPDATE: check last post
ok so im having problem with the vats (im assuming), its the usual, car cranks, runs for 3 seconds, and shuts off. pump continues to run after and car dies. when you turn the on the security light comes on and goes off like normal, when you turn the car over though its solid. ive had the vats turned off in the pcm and done the resistor mod on the two white wires under the steering column. WHAT NEXT??? im stumped
ok so im having problem with the vats (im assuming), its the usual, car cranks, runs for 3 seconds, and shuts off. pump continues to run after and car dies. when you turn the on the security light comes on and goes off like normal, when you turn the car over though its solid. ive had the vats turned off in the pcm and done the resistor mod on the two white wires under the steering column. WHAT NEXT??? im stumped
Last edited by blown03mustang; Jul 22, 2010 at 11:27 AM.
Thread Starter
11 Second Club
Joined: Dec 2007
Posts: 868
Likes: 0
From: Charleston, SC
yea, for good measure i even pulled the pcm again and had the tuner look at it....we re-flashed it again with a different tune from another a4, then turned the VATS off. same thing happened.
im beginning to wonder if its not a fuel problem? its firing so could it possibly be that the fuel pump is priming but not running?
im beginning to wonder if its not a fuel problem? its firing so could it possibly be that the fuel pump is priming but not running?
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Does it die quickly (like an engine being turned off) or does it stumble and cough and sputter as it dies? If it's quickly, it's possible that it IS still a VATS issue and your tuner might be making a mistake...if it's running great for a few seconds, then slowly sputtering and so on, it's probably a fuel pressure (or oil pressure sending unit) issue.
VATS will disable the starter in a 4th gen regardless of the PCM UNLESS the circuit has been bypassed at the relay in the engine bay...which is very common, or by a resistor somewhere before the BCM, but the resistor if done properly (with the correct resistance) would have also gotten rid of the security light on the dash.
VATS will disable the starter in a 4th gen regardless of the PCM UNLESS the circuit has been bypassed at the relay in the engine bay...which is very common, or by a resistor somewhere before the BCM, but the resistor if done properly (with the correct resistance) would have also gotten rid of the security light on the dash.
Thread Starter
11 Second Club
Joined: Dec 2007
Posts: 868
Likes: 0
From: Charleston, SC
well i got the car running and driving. its at the tuner now, getting ready to pick it up in a couple hours. turned out to be a loose wire in the pcm from the harness adaptor. everything works great and no more problems
