HELP sohc to dohc mod gone wrong!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

painengaged · 07-02-2009, 07:13 PM

i did the sohc to dohc mod Converting Your SOHC Tach to Read DOHC Signal: 240sx Articles: Nissan Forums / Infiniti Forums - NICOclub and my car started for 2 seconds but was runnin like crap. i tried to start it again and heard a pop almost sounded like it was coming from the ecu. now my car doesnt start, i didnt have the time to pull the plugs and check if it was gettin spark and fuel, but i checked all the fues that i thought it would be from and they all looked good.

dubtastic · 07-03-2009, 04:01 PM

cam/crank sensor good?

painengaged · 07-05-2009, 12:25 PM

ya the sensor is good i forgot to cut the wire that ran back to the ecu. so i think my ecu is blown. is there away to test it?

GroundPerformance · 07-05-2009, 12:48 PM

I would check the ECU for a short possible wiring issue. If I were you I'd just look for a DOHC cluster and just take off the Tach it's only held by 3 screws and keep your SOHC cluster so you keep your exact odometer.

GroundPerformance · 07-05-2009, 12:52 PM

Quote:

Originally Posted by painengaged

ya the sensor is good i forgot to cut the wire that ran back to the ecu. so i think my ecu is blown. is there away to test it?

Turn your key to IGN ON and turn the knob on the ECU counter clockwise for a second and turn it back. It should give you some codes. If no light at all then chances are its blown. GL!

DCP94 · 07-06-2009, 11:30 AM

Damn that's sucks!

*DALAZ_68* · 07-06-2009, 11:52 AM

i would say double check the 75A, that loud pop sounds like that fuse...atleast for me...and double check everything else... SOHC Ecu's are hard to come by

S-Nation S13 · 07-06-2009, 12:05 PM

check alt. fuse
check all your fuses underneath the dash
IF ANYTHING I HAVE A DOCH FOR SALE SO LEMME KNOW

http://zilvia.net/f/sale-items/265230-s13-guage-cluster-oem-guages.html

painengaged · 07-09-2009, 03:11 PM

took my ecu to a buddy to test out and it was dead. so thanks for all your help. ordering my new ecu ina few days. come to find out the ecu was for an auto trans not a five speed like the company told me.

painengaged · 07-15-2009, 02:53 PM

it took me three years to get my car running rite and fifteen min to brake it

basicmods · 07-15-2009, 03:38 PM

Quote:

Originally Posted by painengaged

took my ecu to a buddy to test out and it was dead. so thanks for all your help. ordering my new ecu ina few days. come to find out the ecu was for an auto trans not a five speed like the company told me.

I know on the s13 DOHC engines the ecu doesn't matter if it's manual or auto, and if anything the auto is actually a bit better as it has a leaner base fuel map (better mileage, more power). Doesn't throw any codes either. I don't know if it's the same with the SOHC

07-02-2009, 07:13 PM	#1
painengaged Join Date: Aug 2008 Location: indiana Age: 38 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	HELP sohc to dohc mod gone wrong!! i did the sohc to dohc mod Converting Your SOHC Tach to Read DOHC Signal: 240sx Articles: Nissan Forums / Infiniti Forums - NICOclub and my car started for 2 seconds but was runnin like crap. i tried to start it again and heard a pop almost sounded like it was coming from the ecu. now my car doesnt start, i didnt have the time to pull the plugs and check if it was gettin spark and fuel, but i checked all the fues that i thought it would be from and they all looked good.

07-06-2009, 11:52 AM	#7
DALAZ_68 not giving a fuck Join Date: Apr 2007 Location: Los angeles Age: 38 Posts: 15,077 Trader Rating: (104) Feedback Score: 104 reviews	i would say double check the 75A, that loud pop sounds like that fuse...atleast for me...and double check everything else... SOHC Ecu's are hard to come by __________________ LOL 240... whats better than 1? 5 1's ...lol PSN & XBL GT : Wh0pp3r68 CLUB LEXUS : Wh0pp3r

07-03-2009, 04:01 PM	#2
dubtastic Join Date: Jun 2008 Location: 815 Age: 35 Posts: 39 Trader Rating: (0) Feedback Score: 0 reviews	cam/crank sensor good?

07-05-2009, 12:25 PM	#3
painengaged Join Date: Aug 2008 Location: indiana Age: 38 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	ya the sensor is good i forgot to cut the wire that ran back to the ecu. so i think my ecu is blown. is there away to test it?

07-05-2009, 12:48 PM	#4
GroundPerformance Zilvia FREAK! Join Date: Oct 2008 Location: Socal Posts: 1,479 Trader Rating: (44) Feedback Score: 44 reviews	I would check the ECU for a short possible wiring issue. If I were you I'd just look for a DOHC cluster and just take off the Tach it's only held by 3 screws and keep your SOHC cluster so you keep your exact odometer.

07-06-2009, 11:30 AM	#6
DCP94 Zilvia Member Join Date: Nov 2007 Location: Richmond Age: 35 Posts: 228 Trader Rating: (6) Feedback Score: 6 reviews	Damn that's sucks!

07-06-2009, 12:05 PM	#8
S-Nation S13 Post Whore! Join Date: Jan 2008 Location: LAND of the LOST Posts: 4,083 Trader Rating: (92) Feedback Score: 92 reviews	check alt. fuse check all your fuses underneath the dash IF ANYTHING I HAVE A DOCH FOR SALE SO LEMME KNOW http://zilvia.net/f/sale-items/265230-s13-guage-cluster-oem-guages.html

07-09-2009, 03:11 PM	#9
painengaged Join Date: Aug 2008 Location: indiana Age: 38 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	took my ecu to a buddy to test out and it was dead. so thanks for all your help. ordering my new ecu ina few days. come to find out the ecu was for an auto trans not a five speed like the company told me.

07-15-2009, 02:53 PM	#10
painengaged Join Date: Aug 2008 Location: indiana Age: 38 Posts: 36 Trader Rating: (1) Feedback Score: 1 reviews	it took me three years to get my car running rite and fifteen min to brake it