Ignition Issue troubleshooting help
08-30-2010, 06:29 AM
#1
Junior Member
Thread Starter
Join Date: Jul 2010
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Ignition Issue troubleshooting help
Hey guys,
I bought this 86 firebird which at the time I thought only needed a small amount of work and is turning into a complete tear down. The issue I'm working on right now is simply getting spark to the plugs. I replaced the plugs, wires, ignition coil, distributor cap and rotor, still nothing. I have one of the base models that has the idiot light cluster panel on it and absolutely nothing shows up on them at all, regardless of the key position, if the car is cranking, nothing. My question to you guys is, do you think it is the ecm that is the problem? I mean short of putting in a new dizzy and ignition module I am at a loss for what it could be.
Thanks for the help guys!
I bought this 86 firebird which at the time I thought only needed a small amount of work and is turning into a complete tear down. The issue I'm working on right now is simply getting spark to the plugs. I replaced the plugs, wires, ignition coil, distributor cap and rotor, still nothing. I have one of the base models that has the idiot light cluster panel on it and absolutely nothing shows up on them at all, regardless of the key position, if the car is cranking, nothing. My question to you guys is, do you think it is the ecm that is the problem? I mean short of putting in a new dizzy and ignition module I am at a loss for what it could be.
Thanks for the help guys!
08-30-2010, 06:39 AM
#2
Supreme Member
Join Date: Jul 2003
Location: KY
Posts: 1,236
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87IROC, 740iBMW, 328iBMW, 86GMC
Engine: 5.7, 4.4LV8, 2.8, 6.0
Transmission: Manuals & Auto's
Axle/Gears: 3.27, 3.42
Re: Ignition Issue troubleshooting help
Did it run when you bought it? It cranks but will not start? Have you replaced the dizzy?
08-30-2010, 07:47 AM
#3
Junior Member
Thread Starter
Join Date: Jul 2010
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Re: Ignition Issue troubleshooting help
It didn't run when i bought it. It had been sitting for a yr prior, or so I was told. It does crank, and I have not replaced the dizzy yet. At this point I am just working on the spark aspect of things. The car would not start regardless if there was spark currently as their are issues with the fuel pump connectivity or the pump itself right now anyways. I noticed when replacing the cap and rotor yesterday that the metal on the dizzy itself is kind of rusted, could this be causing the problem?
Also, the car is the 2.8 MPFI engine, if that helps with any possible diagnosis? Thanks again
Also, the car is the 2.8 MPFI engine, if that helps with any possible diagnosis? Thanks again
Last edited by 86firebirdproj; 08-30-2010 at 10:32 AM.
08-30-2010, 01:28 PM
#4
Supreme Member
Join Date: Jan 2006
Location: Mooresville NC
Posts: 3,341
Likes: 0
Received 10 Likes
on
10 Posts
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Drink Sparkling water While Testing For Spark
Grab a test light (the type for testing for voltage, not a continuity tester).
Connect one lead to the coil primary (the ignition module side not the key side) and the other lead to ground.
Crank the engine.
Does the test light flash while cranking?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
He Must Have Been Be Cheating - Because I Was And He Almost Beat Me.
.
Connect one lead to the coil primary (the ignition module side not the key side) and the other lead to ground.
Crank the engine.
Does the test light flash while cranking?
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
He Must Have Been Be Cheating - Because I Was And He Almost Beat Me.
.
Thread
Thread Starter
Forum
Replies
Last Post