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WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

OK after having my redtop sr totally rewired i still have NO spark. the ecu ,ignitor

chip,+ coil packs have been tested on 3 other cars! all the grounds have been

ground down to a clean surface . ALL fuses checked.. but still NO spark. anyone

have an idea of what it could be? i have had this car with the swap for almost a

year ,and am kinda getting fed up with it... any ideas would be helpful!

TY, WONit


Onizuka
Posts: 8450
Joined: Wed Nov 06, 2002 5:24 pm
Car: 91 Nissan S13 coupe SR20DET
89 Nissan S14 hatch SR20DE

Post

This may sound rediculous, but if you have a really generous freind with a SR swap, test your whole harness on their car. Crank angle sensor working? If thats broken it will stop the ignition. If there was a short somewhere you would be blowing fuses, so I'm really at a loss as to what else it could be. Battery charged? lol..

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

yea, it turns over fine , no fuses were blown, CAS has been tested so i know its fine... we are all at a loss .... im goin to try and find someone to swap out harnesses with!

AJ1356
Posts: 669
Joined: Tue Feb 17, 2004 7:45 pm

Post

when you trun the key does it do anything ?? or it is just all quite ?? also was your car an automatic b4 or not. if it was an auto then i have a selution for you. try it and it would work like a charm. let me know and i can take a pic of what you ned to do.

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

Nah , it wasnt an aoutomatic befor,and it turns over fine,geting plenty og fuel...

just NO spark whatsoever. befor it would give me spark on random cylinders,but

none now!

User avatar
Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

Post

are positive you have no spark? like you've pulled a coil pack and watched to see if it can arc a spark plug? (ghetto way I've done it in the past is to put a plug in the coil pack, touch the electrode to the valve cover and stand clear while I crank the car)

User avatar
climaxsr20
Posts: 114
Joined: Tue Apr 12, 2005 3:13 am
Car: 1998 Silvia RedTop

Post

what kind of spark plugs are you using?

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

yea, i tested the plugs that way. i dont know what the plugs im using are

called.. heyre the one HT sent me with my swap package... and i have tested for

spark with numerous misc. plugs also... i can hold the spark plug so i know

there is nothing there!

cIvIcKILLA240style
Posts: 57
Joined: Wed Aug 14, 2002 10:37 pm
Contact:

Post

Holy hell I have not been here in a while. The full harness has been removed and completely opened up and all wires in it have been checked. Like he said all sorts of stuff have been swapped from running SRs. I am out of ideas as to what is stopping the motor from providing spark. Do you still have the old lower SR harness?

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

Post

Sounds to me like you have a wiring issue.

Trace point to point for voltage, mark where it stops.

cIvIcKILLA240style
Posts: 57
Joined: Wed Aug 14, 2002 10:37 pm
Contact:

Post

Nismo_Freak wrote:Sounds to me like you have a wiring issue.

Trace point to point for voltage, mark where it stops.
been done

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

HT never gave me a lower SR arness,when i called about it jeff told me that i

didnt need it and the lower KA harness would work fine!

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

Post

cIvIcKILLA240style wrote:been done
Do it again, obviously you overlooked something somewhere in the process of testing everything else you wouldn't have made this post...

User avatar
biglipzit
Posts: 538
Joined: Thu Apr 14, 2005 5:37 pm
Car: sr20det S13 RHD 200SX

Post

maybe ur ecu isnt good? i havent heard anyone mention the ecu... but yeh did u test the CAS?

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

yeah, i put the ECU on my cousins car and it worked fine.... as far as i know the

CAS has been tested also

User avatar
climaxsr20
Posts: 114
Joined: Tue Apr 12, 2005 3:13 am
Car: 1998 Silvia RedTop

Post

maybe its a sign that you cant have an sr20det. haha. kidding. the only thing i can say is you gotta go through the whole process again to double and/ or triple check everything you did. maybe you might have missed something. my brother and i had to do this a couple of times to get the rb25det started.

yellow_jacket
Posts: 1355
Joined: Mon Jan 13, 2003 4:43 pm
Car: 95 240sx

Post

It really sounds like you have a missing ground somewhere. And what did you mean by "as far as I know the CAS has been tested?"

Did you check for power at the coils as opposed to just checking for spark?

Did you check the coil pack harness?

Did you check continuity from the coil pigtails all the way back to the ecu?

Did you check the ground wire on the ignitor?(iirc that ignitor has a ground wire on it. 5 in 4 out)

What about the ecu? Are you sure it is turning on? Is it staying on when the key is in the start position? Have you checked to make sure the ecu is not losing positive power or negative ground?

Did you check for injector pulse using a noid light or how do you know it is getting fuel?

Hopefully you haven't checked one of these things and there you will find your answer.

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

what i mean by that was, my car is at a shop ,and i was told that everything

was tested, but just like everything if you cant see it with your own eyes you

cant say for sure that it was done

now before the harness was pulled , i know that continuity was checked from the ECU to the coil packs...

as for the ecu ,when i bought it,there was no light so i cant tell by eye if it is turning on or not!

and before the harness was pulled ,i lifted the injectors up while having the key turned . and i pulled the fuel line the other day when we tried to start it(this is with the newly redone harness) and fuel was getting to the injectors!

User avatar
Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

Post

yellow_jacket wrote:Did you check the ground wire on the ignitor?(iirc that ignitor has a ground wire on it. 5 in 4 out)
IIRC, the SR harness grounds the ignitor at the ECU. Could be a bad ground on the ECU's part

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

will check and get back to you all!

zippe
Posts: 3
Joined: Fri Sep 30, 2005 3:01 pm
Car: Nissan 240sx

Post

Have you checked the Cam Angle Sensor??? And if the wiring is reversed to the cam angle sensor it will not work either (causing no spark)… what year car is it and red or black top

User avatar
S14Life
Posts: 719
Joined: Sat Feb 15, 2003 12:07 pm
Car: b5 s4 stage 3, 2001 pathfinder, 91 s10
Location: bay area

Post

you know the CAS and the ignitor in plugs are pretty much the same.. make sure you have the colored wires going to the ignitor and the black/white/grey whatever going to the CAS. also, did you get like a redtop hanress with a blacktop ecu? or vice versa?

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

Im not 100% positive, but i think it is a E5 ECU... not sure if it is redtop or blk top ecu.. and im gonna give the shop a call tomorow ,and ask them to double check the wiring,and test the CAS again!

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S14Life
Posts: 719
Joined: Sat Feb 15, 2003 12:07 pm
Car: b5 s4 stage 3, 2001 pathfinder, 91 s10
Location: bay area

Post

e5 is blacktop type x ecu. i'm pretty sure the pins on the e5 differ from regular blacktops..

User avatar
Hijacker
Posts: 14373
Joined: Wed Aug 13, 2003 4:57 am
Car: '92 240sx Convertible
'94 F-150
Location: Fredericksburg, VA

Post

I have an E5 ECU that works fine on my old redtop setup. E5s were from blacktops, but not necessarily type xes

WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

Post

yeah, and i did put the E5 ecu in my cousins car which has a a redtop in it,and it worked fine!

cIvIcKILLA240style
Posts: 57
Joined: Wed Aug 14, 2002 10:37 pm
Contact:

Post

yellow_jacket wrote:It really sounds like you have a missing ground somewhere. And what did you mean by "as far as I know the CAS has been tested?"

Did you check for power at the coils as opposed to just checking for spark?

Did you check the coil pack harness?

Did you check continuity from the coil pigtails all the way back to the ecu?

Did you check the ground wire on the ignitor?(iirc that ignitor has a ground wire on it. 5 in 4 out)

What about the ecu? Are you sure it is turning on? Is it staying on when the key is in the start position? Have you checked to make sure the ecu is not losing positive power or negative ground?

Did you check for injector pulse using a noid light or how do you know it is getting fuel?

Hopefully you haven't checked one of these things and there you will find your answer.
all been done

cIvIcKILLA240style
Posts: 57
Joined: Wed Aug 14, 2002 10:37 pm
Contact:

Post

S14Life wrote:e5 is blacktop type x ecu. i'm pretty sure the pins on the e5 differ from regular blacktops..
wrong

User avatar
S14Life
Posts: 719
Joined: Sat Feb 15, 2003 12:07 pm
Car: b5 s4 stage 3, 2001 pathfinder, 91 s10
Location: bay area

Post

MY BAD

i had the e5 and actually the kind folk here on nico told me it was a Type X ecu and that it was different.

User avatar
S14Life
Posts: 719
Joined: Sat Feb 15, 2003 12:07 pm
Car: b5 s4 stage 3, 2001 pathfinder, 91 s10
Location: bay area

Post

niver mind. I got the E and J mixed up. J4 was the type x ecu


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