4age won't start

[Futo_gt86]

Oh hang on, I'm thinking of the stock coil and ignitor....the earth for the ignitor

Where does the EMS ignition module earth to?
Does it earth to a common point on the body or through the EMS ECU? Sorry never played with a EMS before.

[verm69]

hey hey hey!

i'm helping brokenships with this... and can't figure it out for me for the life of me...

this is exactly what is happening. The car will run for a while and then stop... doesn't conk out, just stops dead, no spluttering, just dies. After this happens, the car will NOT start... I fiddle with the coil, check all the wiring, everything is connected correctly. The computer is getting power, the Ignition module is getting power, the wiring from the ECU to the ignition module is all hooked up perfect. Take the lead from the coil to the dizzy, ground it... nothing. When it won't start, I put a test light (screw driver with a light in it) to the connection from the module to the coil, and it stays solid. When the car DOES start (sometimes when warm, sometimes when cold...), the test light will flash, then it starts. We have replaced the coil, checked allllllll the wiring, and it just keeps starting intermitant...

Can anyone confirm weather there should be two connections to the coil??? at the moment, there is a connection from the battery to the coil, and another from the ignition module to the coil... i'm thinking that may not be right??

The timing is a bit off, but it definatly isn't the cause of this issue... like i said, it just DIES... DEAD... running, then nothing...

any clues???

[timbo]

Shouldn't it have a ground?

[Futo_gt86]

Shouldn't the 12V+ to the coil be 12V ignition, not 12V constant from the battery?
The last Microtech I did said 12V ign on the diagram?
I ran it of a relay with 12V IGN trigger.....
Won't running 12V constant from battery to the coil fubar it?

The Ignition module should be conected to the -ve side of the coil.



I found this diagram with a quick search on google.
The wire colours may not be the same as yours.
Like, the diagram says 12V, but I believe it should be 12V ign.
Where does the black wire from the IGN module earth to?
Check that earth!
From the pictures it looks like it is attached to a bolt that mounts the module to the strut tower.
Try earthing it to the block as stated in the diagram.

EDIT: I just read a EMS Stinger Wiring Diagram, the 12V to the coils should be 12V ign run through a relay, not 12V constant from battery!

[verm69]

that diagram is how it's setup... the black is def grounded on the ignition module. There was a relay that was setup that we didn't know what it was setup to. I don't think it'll make a diference weather it's throught a relay or not to get it running... we will get it onto a relay when we get it going, but at the moment I dont think i'll matter as long as it has 12v... right?

After talking to EMS, they said that as long as the computer gets the trigger from the CAS then it should run.

i will doube check the ground on the module this arvo... but it's definatly grounded... i'll change it and see if thats the problem

im thiking maybe the CAS is rooted?

[verm69]

ok... Checked the ground on the ignition module, put a new dizzy in with CAS, checked the computer is getting power... STILL NO FCUKING SPARK... i'm stumped. I have tested EVERYTHING

It has petrol, has compression, just no spark and i can't figure it out for the life of me

I'm going to call EMS tomorrow and see if they know any good installers/tuners in south bris to see if they can re-wire/tune it coz i can't figure it fucking out

[tuned86]

So it still starts and runs intermittly - effectively can have spark sometimes?

The guage on 12v+ feeding the coil looks decently thick? as well as the grounding cables.

[verm69]

yeah... couldn't even get it going last night. But that is exactly what is happening, it will sometimes spark, won't at all other times.

The guage feeding the coil is definatly thick enough, and the coil is DEF getting power. The ground for the ignition module is standard, so it's good enough (even changed the location to make sure it had good ground) and the engine is grounded from about 3 different points, and the grounds are thick.

Honeslty, the wiring in the car is SHOCKING, so i think it'll be better if it gets re-wired properly anyway. As it is at the moment, i think the wiring will cause isssues even if we do get it going. I could use a good tune as well.

Does anyone know a good tuner/installer in south brisbane???

[FoldKing86]

Sorry i didnt read the whole thread but another option if not checked is the ecu powering the fuel pump, although rare i have heard for some reason the wiring for the pump can be wrong and the ecu only feeds power to the pump like a cold start type thing for a small amount of time.

[Matt]

He has no spark not a fuel supply issue...