Please help with COP

[boostnhard]

long story made short.
i blew my head gasket, so i decided id be good to upgrade to a 1g head, intake mani and TB.

i had to replace my 95 cam pos sensor because the first time i tried starting the car the cam gear destroyed it and it made a lot of spark(yes i kept my 2g sensor instead of going with a 1g CAS) possible blown ECU

so with new sonsor on, the car starts and idles at 500-550 rpm

its like the the car isnt firing right. 10 min after it died and never started again.

right now on the car theres a COP system(i wired my self) but i followed every step on the write up here on tuners.

Can someone please check on the tech article just to make sure its right
http://www.dsmtuners.com/forums/art...5-coil-plug-wiring-install-pics-part-1-a.html

http://www.dsmtuners.com/forums/art...9-coil-plug-wiring-install-pics-part-2-a.html

until someone makes sure that the wiring on my COP is good to go, i wana go back to the stock coil pack, the problem is that when i wired the COP i unbolted the connector from the pack, now i dont know in which order to put it back

thanx in advance

 

[jshuman]

Hi,
I was the one who made those articles. Hopefully I can help a little bit. I have done a lot a reading on cop setups. Usually, either they run fine or they don't run at all becuase of the trigger wires being switched. Other issues sometimes arise at full throttle becuase of inadequate spark energy. I am sure the wiring in the write-up is correct, because my car is running perfectly. The wiring I used came directly from diagrams that others have successfully used as well.

Here are a few things that come to mind:
1.Something completely unrelated to the cop. Maybe something was done wrong when you replaced your hg.
2. The boots and springs are not making proper contact with your spark plugs.
3. There are issues with the wiring you did.
4. The coils are not functioning properly.


I have a few quesitons that might help myself or others diagnose your problem.
1. Does it sound like you are missing on one or more cylinders?
2. Did you try running the car with the stock ignition setup after the hg replacement, or did you install the cop while the car was down?

I am unfamiliar with swapping heads and keeping the 2g sensor, so someone else will have to chime in there.

Justin

 

[boostnhard]

Hi,Justin

to answer your q's
1. It does sound like its missing on one or more cylinders
2.not yet,the COP was intalled before droping the motor. i will wire the stock coil pack tomorrow morning

if im off timing will the be injector signal and spark?

 

[jshuman]

Hey,
It could be an issue with the cop if it sounds like you are missing. However, I have done a lot of research on this site and others regarding cop, and a low idle is not something I have heard of before. Normally, if it misses, it still idles at the correct rpm.
Could you have accidently wired the wrong coils together. Like coils 1 and 3 instead of 1 and 4?
Could you post up pics of your cop setup and let us look at it?
Also, did you buy new coils or are you using used ones?

To be honest, I can give advice about the cop, but as I said, I am not expert when it comes to issues resulting from the head swap.

If someone could give some input on the cas variables it would help out a lot.

Let me know what happens when you put the stock coils back on. We will know where to go from there.

Justin

 

[boostnhard]

I really dont know why either, today swapped to stock coils and it started at the first crank.
but pls help help me figure out where i went wrong.

its not the wiring i'm very good when it comes to wiring and soldering( i paid attention to your article).
the coils are new.

heres what im worried about, if it was missing because of the springs not making contact on the plug or coil. this would only cause the car to miss(since all cylinders arent firing)

it wouldn't cause the car to lose signal everywhere as if the ECU is dead
it lost signal in the injectors plugs and everything in between. So im afraid to put it back in and fry my ECU

 

[jshuman]

Hmmm. I am really puzzled about that. I have no idea how the cop could cause you to lose injector signal. The article was looked at by a wiseman though, and he said it looked good. Did you try switching the trigger wires? That has been the most common problem with COP setups. Also, you might try to stretch the springs just to be certain that they touching both the coil and the plug.

How do you know you lost signal to the injectors?

I really want to help you get this working, I love my cop setup.
Justin

 

[boostnhard]

[How do you know you lost signal to the injectors?

you unplug an injector and with a testlight check for voltage, while someone cranks the engine

 

[vancitydsm]

so you went back to the stock set up and it was all fine no problem? if problem persisted i would be questioning the cam sensor. Also isn't it adjustable? i have a 2 g so i wouldn't know.

 

[jshuman]

I have been doing some searching and reading trying to get some ideas on this. From what I have read, no inector signal usually results from issues with the cas. But I don't see how that could be the problem since it seems to be running fine now that you went back to stock. As you will find people saying in the cop threads, this should be a plug and play deal. Was there any thing else that you can think of that you might have changed when you went back to stock?

I would like for someone to give some input on how the cop could cause there to not be injector signal?

 

[XilArAtiNG]

IF you know of anyone witha scope, have them hook it up to the cas while cop is set up. You will quickly find out if that is your problem... Without the cas reading you may not have spark but you should have injector pulse... CAS is mainly used to find the #1 piston at tdc so the ignition cycle goes in synch.

Also to answer your question, Yes you still will have injector pulse and spark if you are off on your timing, depends on how far you are off the car will start but will missfire and stumble when runn

I personally think you have another problem somewhere in the wiring because youve lost injectors...

 

[jshuman]

I personally think you have another problem somewhere in the wiring because youve lost injectors...

By that do you mean his cop wiring or somewhere else?

 

[XilArAtiNG]

While wiring the COP messing some other wiring up on accedent that is...
The fact that the CAS had shorted out and sparked could of also screwd something up in the PCM but it runs well without the set up so thats out of question....

Make sure your CKP is hooked up because that is what sends a signal to fire the injectors.

 

[jshuman]

Hey,
I was just wondering if you were able to figure out the problem with the cop setup?