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ECU malfunction(s)!!! (Fuel Pump Relay)

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SKOLJACK

15+ Year Contributor
156
0
Feb 3, 2004
Tallmadge, Ohio
Yesterday I started noticing that signature electrical burning smell from my interior, shortly afterward I could hear the fuel pump relay clicking rapidly - This was causing the engine to stall shortly after start up. I replace the fuel pump relay first but to no avail and upon removing the ECU, I came upon an upsetting site - A leaking capacitor which is the most likely cause of the malfuntioning relay, but then noticed the melted transistor = I have no idea what this is effecting? Now, I have temperarilly rigged my old fuel pump relay to remain "ON"/"CLOSED" when ever the ignition is ON and this seems to have no adverse effects on anything else (other than the annoying clicking still coming from the relay). If anyone can give a little insight into the cause or even some inexpensive repair tips on this matter, it would be greatly appreciated.

I have a 91 Eagle Talon TSi 2.0 Turbo 5-Spd w/ECU# MD166262 E2T36578 0620 E
 

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Just over 2 years from my first fuel pump relay click, I have a freshly reman'd ECU from Motoguy's Garage for $218.40 with a 12 month warranty and everything is working great!!! I went ahead and purchased this ECU through eBay on 11-10-06, received it in the mail on 11-16-06 and sent my core back to them (in a pre-paid package) the same day. I just refunded the $100.00 core deposit today (12-06-06) and everything is still operating properly. I am very pleased with their workmanship and service! Hope this is useful information for those of you on a budget!!!

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