Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - ECM has no POT or RED LED for Diagnostics???

white smoke · 01-21-2006, 11:31 AM

I have searched all around and cant really find the info I am looking for.

I have a 98 s13 blacktop in my 93 240sx. Im not 100% on the ECU information because the sticker on top of the ECU is half ripped off!
What I do know is that the is a large J on it and I can read the #'s A18-F81 G85(5 could be a 3)... The rest I cannot read. Its either a J4 (manual) or J5 (auto) ECM and is for a type X.

Here is a pic to better show you: http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg

Im not sure what the deal is but my ECM does not have any way, that I know of, to test for problems. I opened it up and im sure I found where they would go but there is nothing soldered in there. It looks to have came that way from the factory but I cant be 100% on that. I got the ECU from Heavy Throttle along with my motor. Can anyone give me any info on this ECU and why it does not seem to have this feature? I know some newer ECM's only have the knob and you have to use the dash light but there is no knob on mine. Any info would be greatly appreciated.

Here is where I think the POT and LED should be: http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg
http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg

01-21-2006, 11:31 AM	#1
white smoke Leaky Injector Join Date: Jan 2006 Location: MD Posts: 66 Trader Rating: (0)	ECM has no POT or RED LED for Diagnostics??? I have searched all around and cant really find the info I am looking for. I have a 98 s13 blacktop in my 93 240sx. Im not 100% on the ECU information because the sticker on top of the ECU is half ripped off! What I do know is that the is a large J on it and I can read the #'s A18-F81 G85(5 could be a 3)... The rest I cannot read. Its either a J4 (manual) or J5 (auto) ECM and is for a type X. Here is a pic to better show you: http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg Im not sure what the deal is but my ECM does not have any way, that I know of, to test for problems. I opened it up and im sure I found where they would go but there is nothing soldered in there. It looks to have came that way from the factory but I cant be 100% on that. I got the ECU from Heavy Throttle along with my motor. Can anyone give me any info on this ECU and why it does not seem to have this feature? I know some newer ECM's only have the knob and you have to use the dash light but there is no knob on mine. Any info would be greatly appreciated. Here is where I think the POT and LED should be: http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg http://www.we-todd-did-racing.com/we...ZkMzF5NTQx.jpg Last edited by white smoke; 02-07-2006 at 07:16 AM..