rb20 continuity, power, ground.. and still no spark to one coil? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

two40guy · 05-01-2012, 04:20 PM

just swapped my car with ls2 coils and it ran perfect never idled better sounded awesome, but my tach didnt work.. it did before so i wanted to fix it. i accidentally touched a power wire to the signal wire for the 1st coil pack. ive swapped coils, ive xchecked fuses, grounds, checked wires all grounded/can be traced all the way to the ecu.. just cant get it to spark. ive taken my wiring harness out and checked everything nothing weird with it. idk im just lost no idea what to do, ive completely run out of ideas. other than i may have burnt out the ecu for that cylinder?

OutToWinPAHC · 05-01-2012, 04:25 PM

That will take out the signal amplifier for sure. Know from personal experience.

two40guy · 05-01-2012, 07:33 PM

yep. sure did. have continuity all the way to the ecu but no signal. need a rb20det ecu (number 22) or any manual rb20 ecu if anyone's got one..

05-01-2012, 04:20 PM	#1
two40guy Zilvia Junkie Join Date: Sep 2009 Location: binghamton,ny Posts: 442 Trader Rating: (9) Feedback Score: 9 reviews	rb20 continuity, power, ground.. and still no spark to one coil? just swapped my car with ls2 coils and it ran perfect never idled better sounded awesome, but my tach didnt work.. it did before so i wanted to fix it. i accidentally touched a power wire to the signal wire for the 1st coil pack. ive swapped coils, ive xchecked fuses, grounds, checked wires all grounded/can be traced all the way to the ecu.. just cant get it to spark. ive taken my wiring harness out and checked everything nothing weird with it. idk im just lost no idea what to do, ive completely run out of ideas. other than i may have burnt out the ecu for that cylinder?

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05-01-2012, 04:25 PM	#2
OutToWinPAHC Zilvia Addict Join Date: May 2007 Location: Florida Posts: 746 Trader Rating: (6) Feedback Score: 6 reviews	That will take out the signal amplifier for sure. Know from personal experience.

05-01-2012, 07:33 PM	#3
two40guy Zilvia Junkie Join Date: Sep 2009 Location: binghamton,ny Posts: 442 Trader Rating: (9) Feedback Score: 9 reviews	yep. sure did. have continuity all the way to the ecu but no signal. need a rb20det ecu (number 22) or any manual rb20 ecu if anyone's got one..