89 240 w/dual cam swap cel on and wont throw code - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

scribbles6 · 07-29-2009, 12:44 AM

ok, so i've been searching everywhere and i only found one thread on a different forum but no solution.

I did a swap on my 89 240, put a KA24DE in it, put a stock uncut engine harness in it, 5 speed ecu in there, everything is stock pretty much, replaced old parts and did a lot of maintenance and cleaning to it all before i swapped motor in.

car is running great, very strong, i'm still breaking in the new clutch so i decided to drive it around to work and stuff... on my way to work my CEL (check engine light) came on, no bogging, no changes at all in the way it was all driving but CEL on...

so i got home and tried pulling the codes on the ECU but when i got to do it, i turn the key to on, sping the little knob thing fully clockwise, wait the 3 seconds or so, then spin it to the left to enter diagnostic mode but the LED in the ECU just stays on and doesnt flash a code at all as well as the CEL on, wont turn on during that or flash.

has anyone had this happen before, i've asked around and had a couple people look at it and said they've never seen it before.

please help, anything will be greatly appreciated.

07-29-2009, 12:44 AM	#1
scribbles6 Users Awaiting Email Confirmation Join Date: Jul 2006 Location: east bay! Age: 39 Posts: 211 Trader Rating: (5) Feedback Score: 5 reviews	89 240 w/dual cam swap cel on and wont throw code ok, so i've been searching everywhere and i only found one thread on a different forum but no solution. I did a swap on my 89 240, put a KA24DE in it, put a stock uncut engine harness in it, 5 speed ecu in there, everything is stock pretty much, replaced old parts and did a lot of maintenance and cleaning to it all before i swapped motor in. car is running great, very strong, i'm still breaking in the new clutch so i decided to drive it around to work and stuff... on my way to work my CEL (check engine light) came on, no bogging, no changes at all in the way it was all driving but CEL on... so i got home and tried pulling the codes on the ECU but when i got to do it, i turn the key to on, sping the little knob thing fully clockwise, wait the 3 seconds or so, then spin it to the left to enter diagnostic mode but the LED in the ECU just stays on and doesnt flash a code at all as well as the CEL on, wont turn on during that or flash. has anyone had this happen before, i've asked around and had a couple people look at it and said they've never seen it before. please help, anything will be greatly appreciated.