sohc to dohc wiring help. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mEaty180 · 08-17-2009, 09:06 AM

under the dash, yes, yes, i've researched and read shit, however every single one just says colors match. on the ones with colors it just says what they go to. such as yellow/red tach, yellow/green spedo, blue/black water temp, orange 12v ignition, however there is only a blue and black and orange on the dohc side, there's a red on the sohc but a red and green on the dohc. just wandering if anyone actually has a chart with colors or anything i hate just connecting wires on the hope that its just the colors kinda matching.

so i checked some more stuff and i guess i had a wierd engine harness i dont know if the fact that the motor came out of a hicas car made the difference or not, anyways i grabed another harnes and wired into the 13 power harness up in the right corner behind the dash the colors all matched and i had a couple left over, however the car is still not starting, no spark. i did the resistance check on the coil and from what i can tell its good but there is still nothing coming out of it. any help would be greatly appreciated

projectRDM · 08-17-2009, 05:24 PM

Just as it says, the wires you'll connect are in every guide online. Anything else you leave loose.

If wiring is correct, do the usual, check for spark, fuel, and air.

zallow · 09-11-2009, 01:33 AM

I just did this swap myself, repinned the connector by the ecu like every guide online says and i got the same problem. Fuel pump doesn't turn on when the key is on the on position and no spark either.

I just did 3 hours of diagnosis and still nothing. Is there something we're missing here?

08-17-2009, 09:06 AM	#1
mEaty180 Join Date: Aug 2009 Location: tifton ga Age: 34 Posts: 2 Trader Rating: (0) Feedback Score: 0 reviews	sohc to dohc wiring help. under the dash, yes, yes, i've researched and read shit, however every single one just says colors match. on the ones with colors it just says what they go to. such as yellow/red tach, yellow/green spedo, blue/black water temp, orange 12v ignition, however there is only a blue and black and orange on the dohc side, there's a red on the sohc but a red and green on the dohc. just wandering if anyone actually has a chart with colors or anything i hate just connecting wires on the hope that its just the colors kinda matching. so i checked some more stuff and i guess i had a wierd engine harness i dont know if the fact that the motor came out of a hicas car made the difference or not, anyways i grabed another harnes and wired into the 13 power harness up in the right corner behind the dash the colors all matched and i had a couple left over, however the car is still not starting, no spark. i did the resistance check on the coil and from what i can tell its good but there is still nothing coming out of it. any help would be greatly appreciated

08-17-2009, 05:24 PM	#2
projectRDM Post Whore! Join Date: Dec 2002 Location: Atlanta Age: 47 Posts: 13,812 Trader Rating: (12) Feedback Score: 12 reviews	Just as it says, the wires you'll connect are in every guide online. Anything else you leave loose. If wiring is correct, do the usual, check for spark, fuel, and air. __________________ FORMERLY R240NA Learn what's really going on and protect your assets now before they're gone forever: www.paypalsucks.com

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09-11-2009, 01:33 AM	#3
zallow Join Date: Mar 2008 Location: Cornwall, ON Age: 42 Posts: 6 Trader Rating: (0) Feedback Score: 0 reviews	I just did this swap myself, repinned the connector by the ecu like every guide online says and i got the same problem. Fuel pump doesn't turn on when the key is on the on position and no spark either. I just did 3 hours of diagnosis and still nothing. Is there something we're missing here?