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View Full Version : burned trace in ECU. advice on pin 38?


paintkilz
09-20-2011, 04:38 PM
ok guys, my cars been down for a long ass time now and im hoping i finally narrowed it down.


was driving the car and it just broke down. wouldnt start. had it towed to my uncles shop. he took a quick look and said my Distributor was bad. i got a used on off here and replaced.

still nothing.

then i notice that im not hearing my fuel pump prime. i check it and the pump will run on its own. started looking around. had a blown fusible link. replaced.

still nothing.

i decided after checking continuity of my wires to pull my ecu and take a look.

well theres a fried trace for about an inch running to pin 38.
damn.

ive left a message with a friend who builds custom guitar amps to see if he could repair the trace but its taking forever. i was curious as to if anyone has any advice for this?

i just want to get it running so theres no issues as im about to swap shells soon. i dont want to deal with a downed donor as well as just the swap in general. i know pin 38 runs the BLK/WHT wire to the distributor, eng temp sensor, and the ECCS relay.

is this a ground signal from the ecu?

if thats the case can i just ground the blk/wht wire itself? or does the ecu have to signal the grounds when needed?

im going to try to take a pic and post it. im wondering if a small wire jumping the burnt trace would be alright for a temp fix. only problem is im not really qualified as this is very fine. ive soldered guitar equipment but thats nowhere near as precise.


thanks for your helps guys. i tried to read and search as much as possible before having to post this. sorry if i missed something.

xpertsnowcarver
09-20-2011, 04:40 PM
What ECU do you have?

The cost to send it to a circuit board repair shop is significantly more than simply buying another ECU from this forum.

paintkilz
09-20-2011, 05:23 PM
sohc Ka.

a11-b15G11. unless theres a number on here im missing.

i wasnt sending it to a repair shop. i have a friend/guitar tech who builds custom guitar amps so the trace work on a circuit boards not a big deal for him. possibly. this isnt a guitar amp haha.

Banegraphix
09-20-2011, 06:46 PM
Thats not a ground its a signal wire for the MAF, ECCS and distributor so either fix the ecu or get another one

paintkilz
09-20-2011, 07:06 PM
yea figured out it was "+".

gonna try redoing the trace.