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help electrical prob 1g car dies brakes

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topcat92

Probationary Member
7
0
Jul 5, 2008
severna park, Maryland
hey
my car ran fine i parked it 1 hour later i started it went to leave it died i narrowed it down to when i hit the brakes it dies so i unplugged the brake light switch and it runs fine and all i just have no brake likes or turn signals so i know its electrical i was just wondering if any one has ever seen this or heard this please let me know i need to drive i just dont need the tickets
i have a 1g talon tsi awd
im sure everyone says this but i did search the forum and while it made for an interesting read it did not help
thanks -T.C. :confused::talon::cry:
 
The ISC motor on the throttle body is used by the ECU to adjust revs to keep the car running during all operating conditions. Although brake lights may demand little electricity, if your ISC is already at it's far adjustment limit due to bad tune (boost leaks/gasket/dirtied up seat) or is diabled/broken, it will not be able to regulate the idle speed when the alternator demand is increased and the engine will stall.

Some helpful threads on Setting the Base Idle/timing/Cleaning the ISC:
http://www.dsmtuners.com/forums/tuning-engine-management/294287-setting-biss-isc-range.html
http://www.dsmtuners.com/forums/newbie-forum/240220-bad-isc.html
:dsm:
 
yeah the brake lights still work and i tested the ISC i think that the isc is different 91-92 because i had ohm readings of 29 to 31 for pins 1-2 2-3 and 4-5 5-6 so im pretty sure that the prob is in the harness looks like the only test left is a long wiggle test of the harnesses:cry:
thanks for your help thus far
-T.C.
 
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