still no spark!!!!

[jo_91gs]

ok so im getting straight to the point. ive sent my 91 tsi fwd ecu to get rebuilt twice now and still no spark. the techs warned me bout its burnt caps and suggested i check my isc motor because it could be blowing the caps. to get my car running i cut what i think is the #13 wire on the ecu (one of the wires that splits in two from the fuel injection relay) and grounded it myself. once done the car runs great, idle and everything. correct me if im wrong but i figure its not the isc. the problem is that with the wire grounded, my car battery dies because of the constant power flow ( without key in ignition). the only thing i can think is causing this is something that doesnt affect the way the car runs, like the ignition switch for example. thats all i got for now so i hope this can help a fellow dsmer an idea of what could be causing this annoying problem.

 

[luv2rallye]

Until replaced, a shorted component that the ECU controls will always keep blowing one of the ECU output drivers. See here for description: http://www.dsmtuners.com/forums/art...585-troubleshooting-fried-ecu-components.html.

 

[PIMking]

I had a sim problem in my 90 it happend to be a power transistor unit.

 

[jo_91gs]

so your saying you had your car running with the ecu problem

 

[jo_91gs]

if so, how was your cars performance affected by the power transistor

 

[jo_91gs]

It turns out the place I was taking the ecu was ripping me off. I took it to steve and it was repaired and sent back to me within two weeks.