#1 Reason For Blown s4 ecu's?
Thread Starter
Joined: Sep 2003
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From: Spring Hill TN 37174
#1 Reason For Blown s4 ecu's?
Ok I am about to install the 3rd ecu in my 87 se....What is the #1 reason for blowing them? I am getting a massive fuel cut/ hesitation between 4.8k and 5k rpm. I was thinking it was due to a messed up thermosensor plug but am not sure ...... Any input would be greatly appreciated....thanks
trevor
trevor
Former Moderator. RIP Icemark.
Joined: Apr 2001
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From: Rohnert Park CA
#1 Mostly damaged by improper testing of things like the BAC or ACV with testlights.
#2 would be broken or damaged wiring or sensors
#3 would be hooking the battery up backwards
#2 would be broken or damaged wiring or sensors
#3 would be hooking the battery up backwards
Former Moderator. RIP Icemark.
Joined: Apr 2001
Posts: 25,896
Likes: 24
From: Rohnert Park CA
Normally when a sensor goes it takes the transistor and resistor with it leaving the rest of the ECU still functioning. Just things might not work correctly without the sensors ouput being read and prcessed by the ECU
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