HELP! RB20DET in S14 w/ Brand new Wiring Specialities Harness Issues - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

fearlessKouki · 06-08-2013, 11:34 PM

Hey Everyone,
I have a 97 240sx, with a RB20DET to complete the swap i had bought the brand new RB20DET to S14 harness from Wiring Specialities. So since i am done with school i started getting the swap together, and trying to start the car. So the Number 1 coilpack is getting really hot, no spark and it is unable to start.

- Car is getting fuel
- Gets spark on NO. 2 CYL ( have not tested rest of them yet )
- CAS is working properly

Since i have minimal knowlegde about wiring...i had my friend look over the car and he said that Number 1 coil is getting constant power (tested by volt meter) and NO spark. He said their is some issue with the harness. So it being a brand new harness i am really confused how it could be an issue unless it was messed up when it was made.

I had bought the harness last year but i have'nt contacted Wiring Specialites about the issue. Not sure if they can still do anything about it because its been a year since i bought.

Any input to why it would cause this to do would be appreciated. I did reasearch but people had DIY Harnesses but knowing this is brand new harness im not sure what to do.

fearlessKouki · 06-09-2013, 10:26 AM

any opinions?

fearlessKouki · 06-09-2013, 10:30 PM

need the car running asap! please anyone has any ideas?

Danger_Dorn · 06-12-2013, 10:56 AM

Try taking out your spark plugs and set them on the valve cover and crank to see if you get good spark on all of them. You can crank or spin the cas by hand to verify spark. Are you getting no power or just like not enough to spin up the motor?

silviaNC · 06-12-2013, 03:06 PM

Yury is reasonable and I'm sure he will take care of you if you let him know the problem. Easiest way to do it. You can also check the igniter diagram and see if there is anything mixed up. Could be a 30min job to fix it. I'm about to order my second harness for a new project and never had such a good costumer service

*fliprayzin240sx* · 06-12-2013, 06:52 PM

Quote:

Originally Posted by silviaNC

Yury is reasonable and I'm sure he will take care of you if you let him know the problem. Easiest way to do it. You can also check the igniter diagram and see if there is anything mixed up. Could be a 30min job to fix it. I'm about to order my second harness for a new project and never had such a good costumer service

This, if you explain to Yury the situation, how you waited a while on the harness, he'd help you out. He can walk you thru the troubleshooting to check things and worst comes to worst, send it back to him to double check everything over.

fearlessKouki · 06-15-2013, 10:37 PM

thanks for your feedback guys...i talk to yury at wiring specialisties we were able to fix the heating/spark problem w/ cutting one wire from wiring harness.

now i have spark and fuel in all 6 cylinders but its unable to start. I tried adjusting the CAS but no luck. also tired disconnecting MAF made no difference.
Any ideas?
im going to try cleaning the MAF with cleaner and also do a compression test.

*fliprayzin240sx* · 06-16-2013, 10:53 AM

Have you put the engine in TDC and checked all the timing marks? I'd start with that to make sure the mechanical timing is good to go. Then restab your CAS in.

fearlessKouki · 06-16-2013, 09:49 PM

Quote:

Originally Posted by fliprayzin240sx

Have you put the engine in TDC and checked all the timing marks? I'd start with that to make sure the mechanical timing is good to go. Then restab your CAS in.

Thats going to be the next time i am going to check, have to find the fsm for the procedure.

I was able to do a compression test, here are the results:
Cyl 1 - 130PSI
Cyl 2 - 130PSI
Cyl 3 - 128PSI
Cyl 4 - 130PSI
Cyl 5 - 140PSI
Cyl 6 - 130PSI

So I have compression, spark, and fuel. Looks like it is Timing, i adjusted the CAS couple times and it almost wants to start, on time it ran for 2-3 sec and died...will be checking timing as soon i find it in FSM!

fearlessKouki · 06-18-2013, 05:06 PM

New Update:

I pulled off the front timing cover and the valve covers to check if mechanical timing was right. Here is what i found, my intake side is not aligning to the back timing cover markings. Also the Exhaust side is slightly off aswell. This was according to 0* BTDC mark on the crank pulley. HERE are pics to show you guys what i was talking about.

I have no clue why the timing is so off. Would thier be any possible engine damage while trying to crank the engine to start the engine?

And i would basically have to redo the timing belt on this to fix this issue correct?
Thank you all!

Bmxer300zx · 06-18-2013, 05:18 PM

It's hard to tell from those angles but doesn't seem that bad.
Those dimples on the cam gears are your marks not the white lines. Those are probably just someone swapping a timing belt the lazy man way.
Long as the mark on the underdrive pulley lines up with the mark on the lower cover and the dimples on each cam gear line up with the mark on the back of the cover should be all good.

Sileighty_85 · 06-18-2013, 05:22 PM

id make sure your plugs are properly gapped and not fouled out

06-08-2013, 11:34 PM	#1
fearlessKouki Zilvia Member Join Date: Oct 2010 Location: Ohio Age: 30 Posts: 278 Trader Rating: (2) Feedback Score: 2 reviews	HELP! RB20DET in S14 w/ Brand new Wiring Specialities Harness Issues Hey Everyone, I have a 97 240sx, with a RB20DET to complete the swap i had bought the brand new RB20DET to S14 harness from Wiring Specialities. So since i am done with school i started getting the swap together, and trying to start the car. So the Number 1 coilpack is getting really hot, no spark and it is unable to start. - Car is getting fuel - Gets spark on NO. 2 CYL ( have not tested rest of them yet ) - CAS is working properly Since i have minimal knowlegde about wiring...i had my friend look over the car and he said that Number 1 coil is getting constant power (tested by volt meter) and NO spark. He said their is some issue with the harness. So it being a brand new harness i am really confused how it could be an issue unless it was messed up when it was made. I had bought the harness last year but i have'nt contacted Wiring Specialites about the issue. Not sure if they can still do anything about it because its been a year since i bought. Any input to why it would cause this to do would be appreciated. I did reasearch but people had DIY Harnesses but knowing this is brand new harness im not sure what to do.

06-16-2013, 10:53 AM	#8
fliprayzin240sx Man w/ CTSV & a Car Seat Join Date: Aug 2002 Location: Tampa Posts: 17,998 Trader Rating: (19) Rides Gallery: fliprayzin240sx Feedback Score: 19 reviews	Have you put the engine in TDC and checked all the timing marks? I'd start with that to make sure the mechanical timing is good to go. Then restab your CAS in. __________________ If you think Zilvia has too many assholes... CLICK HERE!!!

06-18-2013, 05:22 PM	#12
Sileighty_85 Post Whore! Join Date: Dec 2006 Location: Misawa, Japan Posts: 6,815 Trader Rating: (8) Feedback Score: 8 reviews	id make sure your plugs are properly gapped and not fouled out __________________ 後輪駆動車１番 1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit

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06-09-2013, 10:26 AM	#2
fearlessKouki Zilvia Member Join Date: Oct 2010 Location: Ohio Age: 30 Posts: 278 Trader Rating: (2) Feedback Score: 2 reviews	any opinions?

06-09-2013, 10:30 PM	#3
fearlessKouki Zilvia Member Join Date: Oct 2010 Location: Ohio Age: 30 Posts: 278 Trader Rating: (2) Feedback Score: 2 reviews	need the car running asap! please anyone has any ideas?

06-12-2013, 10:56 AM	#4
Danger_Dorn Zilvia Member Join Date: Oct 2012 Location: Jacksonville NC Age: 30 Posts: 265 Trader Rating: (0) Feedback Score: 0 reviews	Try taking out your spark plugs and set them on the valve cover and crank to see if you get good spark on all of them. You can crank or spin the cas by hand to verify spark. Are you getting no power or just like not enough to spin up the motor?

06-12-2013, 03:06 PM	#5
silviaNC Zilvia Addict Join Date: Feb 2012 Location: North Carolina Age: 37 Posts: 937 Trader Rating: (17) Feedback Score: 17 reviews	Yury is reasonable and I'm sure he will take care of you if you let him know the problem. Easiest way to do it. You can also check the igniter diagram and see if there is anything mixed up. Could be a 30min job to fix it. I'm about to order my second harness for a new project and never had such a good costumer service

06-15-2013, 10:37 PM	#7
fearlessKouki Zilvia Member Join Date: Oct 2010 Location: Ohio Age: 30 Posts: 278 Trader Rating: (2) Feedback Score: 2 reviews	thanks for your feedback guys...i talk to yury at wiring specialisties we were able to fix the heating/spark problem w/ cutting one wire from wiring harness. now i have spark and fuel in all 6 cylinders but its unable to start. I tried adjusting the CAS but no luck. also tired disconnecting MAF made no difference. Any ideas? im going to try cleaning the MAF with cleaner and also do a compression test.

06-18-2013, 05:06 PM	#10
fearlessKouki Zilvia Member Join Date: Oct 2010 Location: Ohio Age: 30 Posts: 278 Trader Rating: (2) Feedback Score: 2 reviews	New Update: I pulled off the front timing cover and the valve covers to check if mechanical timing was right. Here is what i found, my intake side is not aligning to the back timing cover markings. Also the Exhaust side is slightly off aswell. This was according to 0* BTDC mark on the crank pulley. HERE are pics to show you guys what i was talking about. I have no clue why the timing is so off. Would thier be any possible engine damage while trying to crank the engine to start the engine? And i would basically have to redo the timing belt on this to fix this issue correct? Thank you all!

06-18-2013, 05:18 PM	#11
Bmxer300zx Zilvia Member Join Date: May 2012 Location: N.Y Age: 35 Posts: 239 Trader Rating: (0) Feedback Score: 0 reviews	It's hard to tell from those angles but doesn't seem that bad. Those dimples on the cam gears are your marks not the white lines. Those are probably just someone swapping a timing belt the lazy man way. Long as the mark on the underdrive pulley lines up with the mark on the lower cover and the dimples on each cam gear line up with the mark on the back of the cover should be all good.