Ignitor/Harness wiring woes, need clarification need spark

Discuss the RB20, RB25 and RB26 series engines.
User avatar
240sxed
Posts: 283
Joined: Wed May 11, 2005 4:14 pm

Post

Ok, so I've looked thru the fsm and its kinda confusing, I can't figure out how to clearly test my ignitor chip as per another thread.

Theres a connector/part/pin/wire im suposed to test thats specified as E but i can't figure out what E is exactly, is it part of the 7 pin connector on the ignitor chip? or is it that other connector right next to the ignitor harnesses?

I get 12 volts when ignition is on from the white wire?

Is my wiring good? what am i suposed to be gettin from the 7 pin connector that goes into the ignitor chip? what am i suposed to be gettin from each of those pins? the FSM just confuses the crap out of me...



User avatar
USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
Contact:

Post

ok. the e if i remember is chasis ground for the wiring loom. it is usually behind the 6th coil pack(rear by the firewall) on the metal bar where the coil pack sits.

3 simple ways of testing.

ecu output to igniter chip 1,2,3 11,12,13 will output

crank .2-.3vdcidle same2500 rpm 1vdc

the 2 pin white and black is the 12vdc and ground for the coil packs. and yes your fine soo far.that simply tells you if the ecu is sending signal to the igniter chip

Now for the igniter chip(too much trouble to check resistance)!!!!!1

so simply pull out the coil pack with the spark plugs then put the coil pack with the harness plug and spark plug installed put the spark plug down to the chasis and have someone crank while you watch for spark at the plug.

no spark and good signal from ecu guess what it's the igniter chip

problem solved.

ensure you go through all six for proper verification.

and for safety ensure your hand is not on spark plug while you crank.and if you do this take out the puel pump fuse.

User avatar
240sxed
Posts: 283
Joined: Wed May 11, 2005 4:14 pm

Post

****. i knew testing was stupid because i suddenly couldn't start my car after a while. ****ing ignitor chips... i swear. Anyhow. Thanks for your imput im just gonna wait till my ignitor comes in... heh.

User avatar
USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
Contact:

Post

ensure you test the following instructions to narrow down the search for the problem.

User avatar
240sxed
Posts: 283
Joined: Wed May 11, 2005 4:14 pm

Post

well i got an ignitor chip comin in from the placei got the clip from... Anyhow yeah I tested for spark done it a milliion times and never got shocked..so far heh =)

User avatar
240sxed
Posts: 283
Joined: Wed May 11, 2005 4:14 pm

Post

KUILLIN_DRIFTER wrote:ok. the e if i remember is chasis ground for the wiring loom. it is usually behind the 6th coil pack(rear by the firewall) on the metal bar where the coil pack sits.

3 simple ways of testing.

ecu output to igniter chip 1,2,3 11,12,13 will output

crank .2-.3vdcidle same2500 rpm 1vdc

the 2 pin white and black is the 12vdc and ground for the coil packs. and yes your fine soo far.that simply tells you if the ecu is sending signal to the igniter chip

Now for the igniter chip(too much trouble to check resistance)!!!!!1

so simply pull out the coil pack with the spark plugs then put the coil pack with the harness plug and spark plug installed put the spark plug down to the chasis and have someone crank while you watch for spark at the plug.

no spark and good signal from ecu guess what it's the igniter chip

problem solved.

ensure you go through all six for proper verification.

and for safety ensure your hand is not on spark plug while you crank.and if you do this take out the puel pump fuse.
I can't get no spark , I got a new ignitor chip from venus, but they probably pulled it off another clip, so Im not even sure if its good? The damn thing was working before now its not.

Ok, so if im gettin 12 volts at the white connector with the ignition on, is there any other spots I should be gettin voltage from ? or is that pretty much a for sure that I have another ignitor chip problem?

and the ECU to ignitor chip output you're talking about. If I probe the ecu connector at 1, 12, 3 ,13, 2 , 11, 10 i should be able to see voltage through the ground when im cranking right?


Return to “RB20DET / RB25DET / RB26DETT Forum”