WTB: m box ECU. Pref. APR or GIAC. (Car down again, ecu died second time in 2 years.)

jonah · 03-01-2012, 11:24 AM

Also: what might be causing it to fail?

Prospeeder · 03-01-2012, 12:21 PM

Well, im certain you would have codes. BUT i have seen several times that shorted o2 sensor heater elements or shorted o2 heater wiring causes ecu failure. For some seriously flawed reason the heater wires go directly to the ecu.... The ecu is located in the plenum chamber? The seal in the connector is gone, too much moisture getting in. Not bolted in or secured correctly so its bouncing around causing damage. or just poor quality replacments.

03-01-2012, 12:21 PM	#2
Prospeeder AudiWorld Senior Member Garage is empty, add now Join Date: Aug 2011 Posts: 837	Well, im certain you would have codes. BUT i have seen several times that shorted o2 sensor heater elements or shorted o2 heater wiring causes ecu failure. For some seriously flawed reason the heater wires go directly to the ecu.... The ecu is located in the plenum chamber? The seal in the connector is gone, too much moisture getting in. Not bolted in or secured correctly so its bouncing around causing damage. or just poor quality replacments. __________________ 1992 Audi 100 CS Quattro 1990 Audi 200 Avant Turbo Quattro 1991 Audi 200 Turbo 1999 Audi A6 Avant

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