J4 ecu interchangable and wiring diagram if possible - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

vsiev · 05-24-2005, 02:20 PM

Hi, I think I have a bad ecu where i would only have 1 cylinder firing and the other 3 with no spark. I have a J4 ecu which is a type x ecu and I am wondering if the other ecus(62 or E5) are compatible with my blacktop. I am not getting any signal from the red wires on the coil packs and my ignitor turns out good. Also, does anyone have the J4 ecu wiring diagram. The wiring on the ecu connector seems different than the wiring on my friends redtop ecu connector which is probably why my tach on my 92 240sx isnt' working. Please help me out. Thanks

05-24-2005, 02:20 PM	#1
vsiev Zilvia Junkie Join Date: Feb 2004 Location: San Diego Posts: 380 Trader Rating: (1) Feedback Score: 1 reviews	J4 ecu interchangable and wiring diagram if possible Hi, I think I have a bad ecu where i would only have 1 cylinder firing and the other 3 with no spark. I have a J4 ecu which is a type x ecu and I am wondering if the other ecus(62 or E5) are compatible with my blacktop. I am not getting any signal from the red wires on the coil packs and my ignitor turns out good. Also, does anyone have the J4 ecu wiring diagram. The wiring on the ecu connector seems different than the wiring on my friends redtop ecu connector which is probably why my tach on my 92 240sx isnt' working. Please help me out. Thanks

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