SR Won't start..no spark?

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
loudbay
Posts: 178
Joined: Mon Jan 05, 2004 7:16 am
Car: duh

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and the colors of the wires aren't supposed to match up on either side of the ignitor, just follow the diagrams on heavy throttle.... i can confirm if you need me to...


civics91
Posts: 305
Joined: Sat Mar 08, 2003 3:37 pm
Car: cars,cars,cars

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i have a ecu j4 and a s13black top

loudbay
Posts: 178
Joined: Mon Jan 05, 2004 7:16 am
Car: duh

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j4 is the 97-98 type x engine, is this what you have? my friend's type x ecu will not start my s13 redtop... we tried....

loudbay
Posts: 178
Joined: Mon Jan 05, 2004 7:16 am
Car: duh

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e5 is from a 94-96 180sx blacktop (probably what you've got)...... WC is from a s14 blacktop... 62 is a redtop.... sorry to say it friend, but you may have to look for someone else's ecu to try out... do you know anyone....

loudbay
Posts: 178
Joined: Mon Jan 05, 2004 7:16 am
Car: duh

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i really hate how hai puts dumb upgrades under your name if you don't do it yourself

sms240sx
Posts: 24
Joined: Mon May 12, 2003 8:03 am

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I'm having the same ignitor problem. I switched to a Z32 ignitor chip and im still getting nothing. I'm also using a SARD tuned s14 Ecu on a s13 red top. The ecu has started the car before and got fried due to bad Mafs wiring. Could that be my problem?

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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Well a shop etsetd my ecu, ignitor, and looked at my wiring... they said the wiring looked right. ECU started the car... ignitor didn't.. my new ignitor is suppose to ship today

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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whelp, new ignitor and CAS came today. STILL NO ****ING SPARK! STILL NO ****ING FUEL!!!! and I am testing this one with a mutlitester... IT GIVES WORSE READINGS THAN THE OLD IGNITOR!!! Does ANYONE have a ****ing WORKING ignitor they will sell me? I'm tired of BS!!! Is there some reason why my car would be popping all these ignitors??

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RobDET
Posts: 1553
Joined: Wed May 07, 2003 5:51 pm
Car: Cars

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dude my money is on wiring still. Be sure that you have power to the ECU. Be sure that you aren't getting spark in #1 only. Be sure that your CAS is adjusted properly. Get the volt meter out and see that you Have voltages where you need them. There are SO many reasons why you won't get spark. I had my KA ECU in the car for about 2 days trying to figure out why it wouldn't start. You absolutely need that ground for the coil packs. Check the resistances on the coil packs themselves. I think the method is on HT. If not DL the FSM and follow the procedure.

Fuel is easy to test. Just take out the plugs and get someone else to turn the motor over. You'll see the puffs of gas come out of the top of the motor.

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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Well its not the ECU, and the old ignitor was tested on a running car so it is know to be bad as well. I have the FSM, the continuity testing rom ECU to coils gives proper reading. The power wires all have proper 12v power. the CAS gives proper voltage readings, all the injectors do. everything seems like it should be working yet no fuel, no spark. I've reached my BS limit, I'm buying 2 q45 ignitors and a whole new harness.

There is only one other thing I can think of that may be wrong.... the lower harness came attached on the SR transmission, one plug is missing... but since the guy pulled this engine "running" out of his car to send to me I figured it must not be used. Also, there is HUGE thick black wire that runs by the block off the lower harness that is twisted together but exposed. Can a problem on the lower harness prevent the SR from running??

my plan now is to just get a whole nother harness, 2 q45 ignitos just to be sure 1 of them will work (I've been screwed so many times since this ordeal started ... no Rb25 after 6 months..boned SRwiring and ignitor when it came, person keeps sending me busted ignitors, that I can no longer afford to buy straight up SR ignitors which i why the Q45 ones.)

1) A new wiring harness prewired and tested before being sent to me.2) q45 ignitor since I think this one that I waited 2 months for for the person to finally send me is broken3) Take my lower harness off my KA transmission and put it on this one.

How does that sound for a plan... the gayest pat is not ONE person has an SR where I live so I have no test car that is known to be working to test my ignitor and wiring on.

Nightmare on Nissan street :(

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RobDET
Posts: 1553
Joined: Wed May 07, 2003 5:51 pm
Car: Cars

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No SR's?? Where are you located?

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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I was in Santa Cruz area, and there was a rumor of two dudes who had em but nobody on the forums was around tha area or willing to help (one or the other) and I was new in that area so i didn't know the car seen.

Now I am Visalia, Central Cali. and there is NOTHING here... but half riced Hondas and one N/A 300zx ... a gremlin.. and one rich old man has a Viper.

nissan_s14
Posts: 96
Joined: Sun Nov 24, 2002 9:50 pm

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Check your timing and reset it according to the FSM. (remove valve cover and reset it that way)I had the same problem...car would crank, but would not catch.

Dugi
Posts: 173
Joined: Sun Mar 14, 2004 2:45 pm
Car: dragging

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Yeah I sort have the same problem. Got spark but no fuel. fuel pump is working. The funny thing is if I push start the car it starts. but just with the turn of the key nothing, just cranks. So I know fuel line is connected the way it should be. I bought a microtech ecu with harness hoping this will fix the problem but it's been 6 weeks now that i'm waiting for it to arrive. I'm from the carribean and am the first with a SR20DET on the island so no help on asking anyone here. All we have here are KA's and CA's. My car has been in the garage for almost a year. I think with all the money I've spent I cloud have upgraded my old CA to a 12 sec car. But I wanted the SR because I wanted to be unique. But when the car is running I will post some pics and 1/4 mile runs

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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Well I've ordered a q45 ignitor, and a whole new harness and is being prewired and tested before it comes. I'll let you know if that fixes it. My bet is still on grounds missing from my harness. When the dude took it out of his car and sent it to me, I think he ripped off a few grounds I'm not seeing. I'll let you know.

Datsun
Posts: 20
Joined: Wed Feb 18, 2004 2:40 pm
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I have been following this thread for a while hoping to hear you say that you got your engine running but, because you have not I am going to put my 2 cents in. I was trying to get a SR20DET running for about two months with no success. I checked and rechecked everything over and over again. I had spark and I had fuel delivery. I reset the timing so many times I lost count. A Toyota technician suggested I shoot some air intake system cleaner into one of the vaccum hoses near the throttle body while cranking it over. The stuff I used is a BG product. "cleans lubricates, protects". It worked. As long as I was shooting this stuff in, the engine would run. What did this mean? It meant that the engine would not run on the gas that was in my tank. While the gas was only 5, no more that 6 monthes old, it was bad. Apparently the gas we are getting at the pumps today is crap. The moral of my long story...if your gas has been sitting around a while, change it for fresh.Good luck,Dana

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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Hey Man thanks for the head ups... unfortunately for me I just put new 91 in like 4 days ago when the new ignitor came :) plus I have no fuel or spark. But that advice is appreciated as it may help someone else.

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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I gave up and bought a new wiring harness.. I now have spark and fuel. My timing is off though because it still won't catch so I am about to go out and try to set it right again.

Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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I started my SR yesterday... it runs! but it rnus like total **** so I have a lot to do still

Datsun
Posts: 20
Joined: Wed Feb 18, 2004 2:40 pm
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Congratulation! Hope you get it smoothed out soon.

nismostate
Posts: 795
Joined: Sat Dec 06, 2003 1:56 pm
Car: all sorts of motorsports

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nice. finally got my sr today. it's already stripped down to the long block. ahaha. hope you get everything figured out. ;)

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AX75F92
Posts: 284
Joined: Tue Jan 06, 2004 9:51 pm
Car: Space
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Wow. Good to hear you finally got it started after all these problems. That guy would sold you the harness really screwed you over. As someone said before, you absolutely need those grounds. Your car will not run without them (obviously).

When I first installed my SR, it was running one 3 cyl. It turned out to be not the igniter, but a loose connection of one of the wires that plug into the igniter. After simply pushing the wire deeper into the clip all was perfect.


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