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hey all, ive tryed some alot of searches on this topic but cannot find it any were,

Is it possible for a r33 gtst stock ecu to become faulty?.

I was installing a safc2 on my gtst, pulled out my ecu and a couple of my wires have been striped and

are bare.

THESE WIRES THAT HAD BEEN STRIPED BACK, but still connected.

PIN#50 (Ground, Control Unit), PIN#60 (Ground, Control Unit), PIN#59 (Control unit power Suppply)

i didnt think much of it, so i continued to install the safc2.

cut the AFM wire and conected the correct wires: white connected to wire going to the AFM and YELLOW

wire going to the ecu wire.

cut back the TACHO/RPM signal wire and connected the SAFC2 GREEN wire.

Cut back the THROTTLE Signal wire and connected the SAFC2 GREY wire.

Connected the SAFC2 IG Power RED wire to the PIN#59 (Control unit power supply) which was already cut back.

and done the same with PIN#60, connected the SAFC2 ground wire: brown and black, BROWN taped in closer

to the ecu side of he wire and the BLACK taped 1cm apart.

turned my cars power on and the safc2 did not turn on, check my wirers and they all looked good, tryed

to start my car and would not start, as soon as i turn the key all the way the power seems to drain, and

this drained my battery (i knew as the sound i was getting was a ticking and no lights would come on)

after 5 attemps of checking wires and removing the SAFC2 all together and reconnecting the ECU's AFM

wire and untaped all the SAFC2 wires from the ecu. got my friend to jump my car, the ticking was gone

but car would not start, charged my battery, and poped it back in after checking the wires again and

searching the internet for printouts, battery was now fine, lights turn on and ticking was gone.

the only thing i can think of is that the open wires may of touched each other and blowen its self?, is

this possible?, the car was working fine before hand, ive checked all in the engine bay and no issues..

can any one help me with this one?, i so dont want to get this towed to my machanic and find i need a

ecu and towe it back home and then the machanic again :D..

i tested the SAFC2 on a 12v tester and all the lights came on the SAFC2, so seems fine :(.

thanx to any one that can help..

ive got a ecu printout here just to help with what wires were open and used.. thanx

MY R33 MODEL: 1996 R33 gtst Series2 if that helps.

oh i used the fAQ from here: http://www.skylinesaustralia.com/forums/Sa...3-G-t85232.html

seemed really easy and well write up..

post-21353-1222825262_thumb.jpg

Edited by seriesII

see if you can check the ECU error codes to test if it's still working.

turn your car's ignition to the ON position but dont start the car.

there is a screw on the side of the ECU near the LED. turn the screw fully clockwise, wait a second, then fully anti clockwise. the LED should start to flash several times. if it doesnt then fair chance your ECU is fried.

after the code test, turn the screw fully clockwise again, wait 1 second, then fully anti clockwise.

i just checked for this screw on the side of my ecu, i found a hole were it looks like a small custom screw should go, and i dont seem to have that screw or one laying around with a end that stays in there .. i uploaded a pic, could someone please tell me if there is a screw meant to be in here. thanx :rofl:

some of them dont have the screw. you can do a diagnostic via the consult plug by crossing two of the pins, i dont know which ones off the top of my head, there is a write up in the tut secsion. or even easier with a consult cable and software.

when you flick the car to "on" check to see if the eccs relays switch. they are a little bit further up the ecu loom. two green relays. if the ecu is completely toast they wont switch as they get there signal from the ecu.

hey all, i found out how to do a test on the ecu, my ecu came back with error #50, which means, all is ok..

The test i did and the error codes: http://www.skylinesaustralia.com/forums/Di...=ecu+diagnostic

any ideas what else it could be?, i was hoping the error for the ecu so i can just change it, but nope..;)

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