NOOB igniter chip question

Website · Post by **USMCgetsome** » Tue Nov 16, 2004 7:41 pm

where does pin #7 from the big connector on the igniter chip go to and if it is a ground where does the other end of the wire run to? and also is the bigger connector the one from the ecu and the smaller for the coil packs. i have 2 extra ic connectors to give a visual.

Post by **IvoryJ30t** » Wed Nov 17, 2004 11:33 am

according to my diagram, pin 7 of the ignitor to ecu connection is the trigger line for a cylinder [cylinder 4 i believe]

that wire should run directly to the ecu. [ecu pin 13]

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 11:55 am

then what about pin 4 on that same connector. that one is going straight to chasis ground. BETTER YET, can you just break down that connector for me heres a pic of what i'm lookin at.

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 12:02 pm

can you just point out position and make this easy... The way i see it where the blue and yellow wire is, that is pin 1 to me. if they are not in sequential order can you describe the layout for me. and also that blue splice that your looking at in the r/h corner is wire#3 from the coil packs. soo what the hell is that supposed to link up with the fuel injectors? i have wire here myself and i can link it up but i have no idea where the hell to put it.

Post by **IvoryJ30t** » Wed Nov 17, 2004 12:19 pm

ok, according to my diagram, you want to be looking at the 7 terminal plug with the latch facing down. [oppsoite what you show]

from left to right, with the latch facing down, looking into harness terminal, wires facing away-

pin 1 = ecu pin 1= cylinder 1pin 2 = ecu pin 2 = cylinder 5pin 3 = ecu pin 3 = cylinder 3pin 4 = groundpin 5 = ecu pin 11 = cylinder 6pin 6 = ecu pin 12 = cylinder 2pin 7 = ecu pin 13 = cylinder 4

Post by **IvoryJ30t** » Wed Nov 17, 2004 12:20 pm

so the blue/yellow wire is pin 7

get it?

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 12:33 pm

SOB.. it's backwards!!!!!

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 12:41 pm

where does the wire from #3 of the coil packs run to as well? this should solve my ignition problem woo hooo

Post by **IvoryJ30t** » Wed Nov 17, 2004 12:44 pm

give me a few minutes, and ill give you the pinout of the 6 terminal plug.

Post by **IvoryJ30t** » Wed Nov 17, 2004 1:08 pm

looking at the harness terminal for the coil packs [the plug, not the coil], with the latch facing down, looking into terminal, wires facing away-

left- signalmiddle- +12v [from ign relay]right- ground

connector to PTU [6 pin]

looking into connector, latch down, wires facing away. 1-6 from left to right.

pin 1 = cylinder 6pin 2 = cylinder 5pin 3 = cylinder 4pin 4 = cylinder 3pin 5 = cylinder 2pin 6 = cylinder 1

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 1:34 pm

how about i just show you a pic and then we can go from there. gimme about 5 min

Post by **IvoryJ30t** » Wed Nov 17, 2004 1:42 pm

go ahead

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 1:48 pm

The black wire with the blue spice on it is the ground for all the coil packs. i was told that this wire was supposed to be connected to the fuel injectors somehow.. i can see how it connects on the schematic but in the engine bay i have yet to find a wire from the fuel injector connector to hook this up to. SAVE ME!!!!!!!

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 1:49 pm

fuel injector connector

Post by **IvoryJ30t** » Wed Nov 17, 2004 2:13 pm

no no no, the injectors are grounded to the ecu [common power, individual ecu ground].

the two systems should not be interconnected.

as long as the coil packs and the injectors have 12v power with the ignition on, thats as far as their relationship goes.

Post by **IvoryJ30t** » Wed Nov 17, 2004 2:19 pm

i can see how you would be confused by the schematic.

the only thing the ignition and injection systems have in common is that they recieve 12v power.

they should not be connected to each other in any way [except that they both get 12v power]

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 2:28 pm

VERY WELL..... then according to the schematics its a chasis ground wire and i'll brb to let you know if it fires.

Post by **IvoryJ30t** » Wed Nov 17, 2004 2:56 pm

make sure the ignitor and the coil packs have a ground.

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 5:00 pm

well there was a lil smoke and some serious heat coming from the ic and the connectors to the ecu and coil packs just from putting #3 to ground like the schematics read. now i'm pissed. this makes no sense to me.

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 5:03 pm

also are there any pics of the 2 relay boxes in the engine bay. mine has no covers and i'm trying to figure if they are getting power or not, i think thats it for the igntion ecu and coil packs. brb gonna go shoot them to ground to see if they are still good.

Post by **IvoryJ30t** » Wed Nov 17, 2004 5:06 pm

woah, you grounded number 3???

number 3 what?

Post by **IvoryJ30t** » Wed Nov 17, 2004 5:09 pm

the coils get power from the ignition relay, and im pretty sure the injectors get power from the eccs relay.

Website · Post by **USMCgetsome** » Wed Nov 17, 2004 6:52 pm

looking at the harness terminal for the coil packs [the plug, not the coil], with the latch facing down, looking into terminal, wires facing away-left- signalmiddle- +12v [from ign relay]right- ground

my connectors are notch/clip up which is how it is installed on the coil packs so #3 on the connectors that go to each coil pack is ground i put it to ground and the ic got really hot. soo i unplugged it and it was still hot...

what i read from the ecu with plug installed is 5.85VDC then to the big 7 pin plug on ic chip reads same.

6 pin plug on ic going to coil packs reads 12VDC.

sound right?

Post by **IvoryJ30t** » Wed Nov 17, 2004 8:34 pm

stop what your doing.

disconnect all the coil packs before turning the ignition on to do these tests.

on the plugs going to the coil packs, is there 12v present on the center pin?

if not, check this out-

looking at the plug for the number 1 cylinder's coil pack, latch down, wires away.

is there 12v power on the right most terminal?? [b/r wire]

if there is power on the right most terminal for the first cylinder's coil pack, then the power supply for the coils are wired backwards.

that condition would give constant power to the number 1 coil pack, and probably fry it.

Website · Post by **USMCgetsome** » Thu Nov 18, 2004 12:28 pm

well back at it again. latch down starting from the left.

left 0.0vcenter 12vright ground

but at the 6pin plug i read all 12v

i'm assuming that should be the signal plug? if that's the case since the notch is up on the plugs to the coil packs. is it upside down. if you need some pics i'll be glad to provide.

Post by **IvoryJ30t** » Thu Nov 18, 2004 12:55 pm

if all of the pins on the 6 pin terminal of the ignitor are reading 12v [voltage between pin and ground] then the ignitor chip is bad.

the ignitor chip is just a couple of NPN transistors.

the coils have a 12v feed with the ignition switch on. the ecu sends a low current signal to the correct pin on the ignitor chip. that signal energizes the base of the NPN transistor for the coil selected, allowing current to flow through the coil, to ground.

another words, the npn transistors in the ignitor chip make and break the coils ground, which fires the coils.

you should NOT be seeing positive voltage on the 6 pin terminal of the ignitor when referenced to ground.

Post by **IvoryJ30t** » Thu Nov 18, 2004 12:58 pm

wait a minute!!!

you meant the harness, not the ignitor, correct?

in that case, there should be 12v on all terminals of the harness going into the ignitor.

the ignitor makes and breaks the ground, which operates the coils.

if you have 12v on all 6 pins of the harness, then the coils are wired correctly.

you are gonna have to test the ignitor chip. do you know how to do that, or do you need directions?

Website · Post by **USMCgetsome** » Thu Nov 18, 2004 1:22 pm

ohh man i've been puzzled for minutes already.... Ok when brown coil pack connectors are plugged in i have 12v at the 6pin connector at the ic. apparently everything is wired correctly when i shot that long coil pack plug.soo, now i'm left with

coil pack plug #1UNPLUGGED left to right notch down

ground12v0.0v

PLUGGED IN right to left notch downground 12v 12v

on the 7pin connector of the ic i am reading 5Vdc from ecu.

I SHOT THE IC yesterday i had when cranking

-7 pin side across to 6pin side/6pin conn disconnected 12vdc -6pin side across to 7pin side/7pin disconnected minimal voltage .2-.3vdc

Website · Post by **USMCgetsome** » Thu Nov 18, 2004 1:31 pm

be advised i had 5vdc without turning the ignition on. just to the pwr position.

SO WHERE IS THE IGNITON COIL AND ECCS RELAY. are those the ones by the ecu?

MAN I'M LOST IN THE SAUCE..... ivory you are a great person for assisting my retarded a$$!

Post by **IvoryJ30t** » Thu Nov 18, 2004 2:06 pm

no problem. i like helping people out who take the time to do things themselves.

ok, now. its weird that the ecu is giving 5v on the 7 pin terminal without the engine cranking/running.

the ecu uses positive pulses to the ignitor to fire the coil. if you are getting 5v on all of the pins on the 7 terminal plug [except for the ground pin 4] then the ecu may be shot.

going from the terminals on the 7 pin plug- using a multimeter, you should see pulses when reading from terminals 1, 2, 3, 5, 6, 7, to 4.

another words, connect the ground lead to pin 4, and use the positive lead to test the other pins.

if there is constant voltage on all of the pins, then the ecu may be bad.

also, check the coil wiring.

check for continuity between the signal pin on the coil harness, and the corresponding pin on the 7 pin terminal. do that for all the coils.

also make sure that there is no significant resistance between the ground pin on the coil harnesses and chassis/battery ground. do that for all coil harness connections.

report back your findings.

NOOB igniter chip question

NOOB igniter chip question

this is the one from the ecu.

PICS 1-3

Re: PICS 1-3 (KUILLIN_DRIFTER)

Re: (IvoryJ30t)

Re: (IvoryJ30t)

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