This is my first post and I am in need of some serious help. This is my problem, for anyone that could possibly help me: While driving my 87 GN, my car died; it now cranks but will not fire. I then noticed that the CCCI fuse was blown. Upon replacement of the fuse, it continues to blow everytime I crank the car. So I replaced the CCCI. Fuse no longer blows, but car still will not fire. I then replaced the Electronic Spark Control Module(ESC). Still the problem continues. So this is where I am at. If anyone has any idea, or advice as to what to do, I will be greatly appreciative and forever in your debt. Thanks for your time.
Check the wires and connector going to the oil pressure switch. A friend of
mine had the EXACT same problem and it tured out to be the oil pressure
switch connectors shorting out on the block (or something down there). He
had removed the oil pressure switch and left the connector dangling and
somehow the connector managed to lay over against something metal and create
a short that kept blowing the CCCI fuse. All he had to do to fix the
problem was wrap the connector in black electrial tape and the problem was
gone.
Good luck,
Rob Pinkston
Dallas, TX
I once had a problem with my car's firing. Damn thing would crank and crank, then BOOM!!, Backfire, usually when I'd let off the key. Had to tow it to a garage so I could work on it. As soon as I got underneath it, I started checking things and low and behold, something must have flown up and smacked my crank position sensor, cracking it. It pretty much looked ok, but I could wiggle it, it was broken. Put a new one on and she fired right up, good as new. Check that sensor, it's one of the main links to make the car fire, and you never know, it could be what's broken and shorted everything else out. Good luck,
Scott
Thanks to Rob and Scott on your input. However, upon replacement of the crank sensor(it was broken) I still have the same problem!! I have looked for any shoterd wires, and to my avail, I have found none. So if anyone has any more ideas, I would appreciate it! Thanks, Frank
Are you sure you're on the right 'slot' of the crank sensor? There are two, and the 'other' one won't get the car to fire.
Yes, I am sure it is the right slot...it's the inner slot closest to the plug. I was talking to someone else yesterday and they said there is a fusible link off of the orange wire coming off the battery...it is supposed to run from there to the starter and to the CCCI. He said that is what I need to check, but I can't find it! If anyone can help me on that one too...sure would appreciate it. -Frank
By CCCI are you referring to the module under the coil?
In lieu of a scan tool, a good check to see that the ECM thinks things are generally OK would be to see if you can get it to display any codes. If you do not have access to a scan tool, have a look at http://www.gnttype.org./maint/malf.html and see if things check out.
Yes, I meant the module....and I already checked for malfunctions codes too. There were none. So you can see I am running out of options!
Go see http://www.gnttype.org/techarea/maintenance/maintpage.html and read/print out the diagnostics for "No Start" conditions.
Basically, you need to verify if you have an SES light with key on(indicating ECM has power); proceed from there to checking for crank/cam pulses by verifying injectors pulse while cranking. If they do, you have a fuel problem and you troubleshoot that; if they don't, you have a CCCI or wiring problem and you troubleshoot that.
Start at the beginning of this diagnostic tree and report back...
Thanks for everyone's help and input. I have finally got it running again. After replacing the module, ESC, and crank sensor, I found the wire coming off the battery to be shorted. And oh yeah, I also realized I had the crank sensor set in the wrong slot! Thanks again to all...everything helped point me in the right directions. -Frank Kays