Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys

Stop Feeding Overpriced Junk to Your Dogs!

GET HEALTHY AFFORDABLE DOG FOOD
DEVELOPED BY THE AUTOMOTIVEFORUMS.COM FOUNDER & THE TOP AMERICAN BULLDOG BREEDER IN THE WORLD THROUGH DECADES OF EXPERIENCE. WE KNOW DOGS.
CONSUMED BY HUNDREDS OF GRAND FUTURE AMERICAN BULLDOGS FOR YEARS.
NOW AVAILABLE TO THE GENERAL PUBLIC FOR THE FIRST TIME
PROPER NUTRITION FOR ALL BREEDS & AGES
TRY GRAND FUTURE AIR DRIED BEEF DOG FOOD
Go Back   Automotive Forums .com Car Chat > Chevrolet > Camaro | Firebird > Camaro Discussions
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 10-29-2005, 01:03 PM   #1
Mndwg1
AF Newbie
 
Join Date: Oct 2005
Location: Dorris, California
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via Yahoo to Mndwg1
Talking 85 camaro innition problem

Seeing a new girl . she has a 85 camaro 2.8l mpfi. Car ran like crap (missing, backfiring,smelling ritch). I (being the man) decided to fix it. Bad idea. found old plugs to be in bad shape (carbon fouling & gapped at .062) so I replaced them with new plugs gapped at .045. While replacing the plugs I the found plug wires wired wrong. I rewired to chilton's specs. car ran mutch better for a mement (i.e. idled & reved fairly well) I closed the hood and that's when it stopped running altogether. I'm stumped I've checked the fuel pressure (because someone said it was her fuel pump) the fuel pump seems to pump ok and I get 48psi at the regulator. I also found the coil had the ground wire cut seemingly quite a while back (it ran in this condition). When the coil ground wire is connected it won't even try to fire. I also had the ICM checked it tested ok. I tested the coil output with an old spark plug and got showers of sparks. I tested the spark at the #1 plug and got irratic and weak spark. Both these last 2 tests were done with that coil wire disconnected. with it connected nuthin'. any help would be greatly appreciated.
Mndwg1 is offline   Reply With Quote
Old 10-29-2005, 09:52 PM   #2
ct91rs
AF Enthusiast
 
Join Date: Feb 2005
Location: Milwaukee, Wisconsin
Posts: 643
Thanks: 0
Thanked 0 Times in 0 Posts
Re: 85 camaro innition problem

Are you sure that's a ground wire? Most of the coils I've come across are grounded to the intake by their mount.
__________________
“When a whole nation is roaring Patriotism at the top of its voice, I am fain to explore the cleanness of its hands and the purity of its heart.” - Ralph Waldo Emerson
ct91rs is offline   Reply With Quote
Old 10-30-2005, 04:46 AM   #3
Mndwg1
AF Newbie
Thread starter
 
Join Date: Oct 2005
Location: Dorris, California
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via Yahoo to Mndwg1
Re: Re: 85 camaro innition problem

Quote:
Originally Posted by ct91rs
Are you sure that's a ground wire? Most of the coils I've come across are grounded to the intake by their mount.
Not really sure. I just assumed. there are two two wire harnesses connected to the coil one from the ICM in the dist. and one from a larger harness that has the power red, 10 to 12ga. and this phantom wire that has been cut for a what appears to be a long time maybe 14 to 16ga. that is black with a white stripe.
Mndwg1 is offline   Reply With Quote
Old 10-30-2005, 07:20 AM   #4
Morley
AF Enthusiast
 
Join Date: Jul 2004
Location: why?
Posts: 1,983
Thanks: 0
Thanked 0 Times in 0 Posts
Re: Re: Re: 85 camaro innition problem

Quote:
Originally Posted by Mndwg1
phantom wire that has been cut for a what appears to be a long time maybe 14 to 16ga. that is black with a white stripe.
That "phantom" wire is the EST wire, electronic spark control wire. that is the wire you are supposed to disconnect to set the base timing. There should be a connector in that wire by the firewall over on the passenger side. If the car won't attempt to run with it connected, the spark control may be bad IF the timing is set correctly. If you have bad/irratic spark on #1 replace the cap and rotor. Also... spark plug gap should .035", the .045" listed on the under hood decal is wrong, GM found that it was too much gap and was causung the ignition modules to burn out.
Morley is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Chevrolet > Camaro | Firebird > Camaro Discussions

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:32 PM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts