Woodyboy
04-03-2004, 10:13 PM
I was trying to run a diagnostic on my ECU for my '93 NX-R (SR20DE) using info I've found for NX's from various tutorials. I've pulled out the ECU but I can't locate the screw that is meant to be next to the red LED to start the testing. Anyone know what the deal is?
The top image is a ECU from a 180sx with a CA18DET (with the screw). The bottom image is of my ECU.
http://home.iprimus.com.au/rainbows/ecu_screw.jpg
http://home.iprimus.com.au/rainbows/100_0930.jpg
spdracerUT
04-04-2004, 03:56 PM
hmm..... interesting... should be in the round hole on the back of the ecu....
qinsac
04-04-2004, 09:07 PM
If you look on the sides, there should be a sticker covering the screw. That will allow you to run diagnois on the ecu.
white classic
04-04-2004, 11:19 PM
Edit: didn't see the pic of your ecu... lol. It should be right there, in the hole. Maybe the AU versions didn't have that feature. Get a factory service manual, it will tell you how to run a diag. Is yours a b13 chassis? Is it the same as the American-version NX2000?
Calum
04-04-2004, 11:27 PM
Some non-US ecus do not have the screw. Yours may be like that. On your consult port jumper the top two right pins, this does the same thing.
Woodyboy
04-05-2004, 03:10 AM
Some non-US ecus do not have the screw. Yours may be like that. On your consult port jumper the top two right pins, this does the same thing.Thanks Calum - I think your probably right. I've managed to find how to go about testing the ECU using the consult port for a N14 Pulsar (SR20DE) here in Australia, so it should be the same for the NX.
Is yours a b13 chassis? Is it the same as the American-version NX2000?Yeh it's a B13 - almost the same as the NX2000.
If you look on the sides, there should be a sticker covering the screw. That will allow you to run diagnois on the ecu.There's nothing down the sides of it.
nizzan4u2nv
04-05-2004, 04:34 AM
You know what, my stock ecu had a screw but no diagnostic light. Weird huh, maybe ill take some pics of it.
Woodyboy
04-05-2004, 11:17 AM
Did the diagnostic test tonight by shorting out the consult port - in the end it was very easy to do. Nothing wrong with the car according to the test... only thing is now I still need to find why it's lacking in performance.
nizzan4u2nv
04-05-2004, 03:03 PM
Have you done a tune up lately?
spdracerUT
04-05-2004, 06:54 PM
You know what, my stock ecu had a screw but no diagnostic light. Weird huh, maybe ill take some pics of it.
The check engine light flashes.
Woodyboy
04-06-2004, 03:19 AM
Have you done a tune up lately?
Nope - I guess that's one of the next things that I have to look at.
nizzan4u2nv
04-06-2004, 05:55 AM
The check engine light flashes.
Oh shit, no wonder. SE-R.net needs an update.