fresh motor,Fuel issues?
Joined: Dec 2004
Posts: 16,771
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: fresh motor,Fuel issues?
Are you getting a constant code 42 ? If not double check continuity on the est wire at the ecm pin c8 and the icm connecter.
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
I only get a check engine light when the wire is disconnected,I don't have any way to check for codes.I will check the continuity tomorrow afternoon.Thank you for the consistent advice.
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Senior Member
iTrader: (6)
Joined: May 2005
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: fresh motor,Fuel issues?
advance control signal is a white wire, so either your ecm is bad or your icm is bad.
Thread Starter
Senior Member
iTrader: (6)
Joined: May 2005
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
4.92v with ign on at the plug to ground
so got a stupid question what is the advance control signal wire for and do I need to check it?also stupid question what is the icm?I assume it is the ignition control module but just wanna clarify thats the module in the distributor...
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: fresh motor,Fuel issues?
The icm, is the ignition control module in the distributor. The knock sensor is within spec. If the pickup coil was wired backwards the timing would retard once the est is reconnected. I don't believe there is a way to check the icm for advance control. The ecm controls the ignition advance vs rpm and engine load.
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
The icm, is the ignition control module in the distributor. The knock sensor is within spec. If the pickup coil was wired backwards the timing would retard once the est is reconnected. I don't believe there is a way to check the icm for advance control. The ecm controls the ignition advance vs rpm and engine load.
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: fresh motor,Fuel issues?
You found the problem
Im just not sure the cause
Im just not sure the cause Thread Starter
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
well the car sat for a very long time while I was in the process of gathering parts and such...I'm suspicious of weak solder joints and stuff like that also possibly in the ecm.I'm not getting my hopes up though because I've tried all this before.I'm just hoping autozone has screwed up on the last distributor they sold me
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iTrader: (6)
Joined: May 2005
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
have the new distributor in hand,I will be installing after dinner and a movie(wifes idea..lol) I'll get back on in a little while with results.wish me luck
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: fresh motor,Fuel issues?
You might want to set down the dizzy for the movie. My wife gets ticked off about car parts in the house lol
Thread Starter
Senior Member
iTrader: (6)
Joined: May 2005
Posts: 751
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
Re: fresh motor,Fuel issues?
who the hell woulda thought that my original dist would be bad then the new one I bought and installed would be bad....I guess third time is the charm
I am one happy moter scooter tonight bro!!now it's time to button up the engine compartment,get all the wires and hoses and lines back in place where they belong,change the oil,get a full tank of gas and take her for a good long cruise with the top down and the wind in my hair!!Hopefully finally I can start working on the other stuff now...Thank you so much man for all your help...I kinda feel like I'm dreaming at this point because it's been so long since it's been on the road..lol
Thread Starter
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iTrader: (6)
Joined: May 2005
Posts: 751
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From: Beech Bluff,TN
Car: 1991 Trans Am Convertible
Engine: 305 TPI
Transmission: T5
Axle/Gears: 3:08
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