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did hei mod and still having problems

Posted: May 30th, 2007, 9:20 pm
by dillon
i installed the new ignition modual from a 82 chevette as per the write up, wired it up all ok, double,triple checked it and it still wont start, it worked fine for 1 day and now its dead, just will roll over, it seems now like it was a problem that was getting worse and worse, and now what ever was going is gone, i didnt pull and codes yet, there were none the day before it crapped the bed,

any ides, any other common problems. fuel filter or pump mabey, i need my wheels, thanks

Posted: May 31st, 2007, 9:40 am
by Custommx3
Same problem as before the HEI mod?
Did the mod and it worked for 1 day and back again? or worked fine till the HEI mod?

Posted: May 31st, 2007, 5:31 pm
by ho bag
Custommx3 wrote:Same problem as before the HEI mod?
Did the mod and it worked for 1 day and back again? or worked fine till the HEI mod?
The car was dieing intermitently, random...Then after a random amout of time it woudl start again, Sometimes minutes....some times days.

He did the hei mod as per the faw, cut the orange wire (top of 6pin connector) and its still no better. I believe he got a cam sensor code before the mod as well (or was it crank sensor?)

Next step is probally to try an external coil incase thats what died. Or maybe a new crank sensor.

BTW, this is my old car thats why i know all this :)

Posted: May 31st, 2007, 8:12 pm
by dillon
yeah hobag said it better, but is there anything else to try other than the external coil, any other test i can run before i burn the heap

Posted: May 31st, 2007, 8:28 pm
by tehbrookzorz
Isn't there a strap in the distribuotr that needs to be disconnected?

Posted: May 31st, 2007, 8:29 pm
by ho bag
Thats for if your running an external coil

Posted: May 31st, 2007, 8:32 pm
by tehbrookzorz
Ah, I thought the stock ignition module grounded through it as well. Oops.

Posted: May 31st, 2007, 8:48 pm
by mx3autozam
maybe you need to do the external coil as well

Posted: May 31st, 2007, 8:49 pm
by ho bag
He cut the orange 6pin wire off, that stops the ecu signal from getting to the stock modual.

Posted: June 2nd, 2007, 7:16 am
by dillon
anyother ideas, i got all weekend to mess with it, thanks

Posted: July 8th, 2007, 7:13 am
by dillon
ok added the external coil, still nothing, i drilled the cap, added the power tower, took off the metal strap inside the dist, wired it up and nothing, im lost

Posted: July 8th, 2007, 12:26 pm
by dillon
also after cranking for awhile the coil get very hot

Posted: July 11th, 2007, 4:23 pm
by dillon
no one?

Posted: July 11th, 2007, 4:47 pm
by Tunes67
Click Here

This is another thread on the HEI mod.. its a fun read and there are some diagrams in there that may help you double check your setup. Not sure why Mnemonics diagrams arent showing up though.. maybe he can get those fixed :)

Tunes67

Posted: July 11th, 2007, 5:07 pm
by Mnemonic
maybe i will!

Image
:lol: