carb question
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Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
carb question
i have a 305 in my t/a with an electronic feedback carb does this have to be plugged in for the car to run?is the clicking normal when i do plug it in? can i put a non feedback carb on the car without any problems?
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Joined: Jan 2000
Posts: 20,981
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: carb question
Yes it has to be plugged in. Yes ticking is normal. You could downgrade to a non-feedback carb but not without making other changes as well.
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
what other changes would have to be made? and the carb was not plugged in when i got the car and it ran rich po said it ran like crap when plugged in any ideas?
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: carb question
You'd lose computer control of timing, so you'd have to replace the distributor as well. If it's an automatic transmission, you'll also need to take care of the torque converter clutch lockup without the computer.
It'll run rich all the time with the carb unplugged. You'll have to plug it in and see what happens to start figuring out what's wrong with the system.
It'll run rich all the time with the carb unplugged. You'll have to plug it in and see what happens to start figuring out what's wrong with the system.
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
it wouldnt start today with it plugged in my guess is that the batt im using isnt strong enough to start it
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
that all makes sense but we my grandpa and i redid his s10 we got rid of the throttle body and replaced it with a carb we left the comp hooked up to control the trans and whatever else an jus installed an hei distributor
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: carb question
His computer isn't controlling the transmission. It used to control the TCC, but not anymore.
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Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
i tried again and as soon as i turn the key to on it starts clicking and dosent stop until i turn the key off not sure what that means
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Joined: Nov 2005
Posts: 342
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From: New Hampshire
Car: 86 MCSS-87 Z28
Transmission: Auto OD-5spd
Axle/Gears: 3.73 both cars
Re: carb question
You can run a regular carb and leave the computer hooked up to control lockup and timing. No need for a new distributor. What is clicking, the carb or starter when you try to start?
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
Likes: 0
From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
the carb clicks non stop with the key in the on position
the car also sat for a year before it was touched not sure if that has anything to do with anything
the car also sat for a year before it was touched not sure if that has anything to do with anything
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 71
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From: beaver dams new york
Car: 86 firebird t/a
Engine: 305
Transmission: auto
Axle/Gears: stock
Re: carb question
so what should i do rebuild the stock qjet or get a replacement and how is the choke supposed to be wired up on it?
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Joined: Dec 2011
Posts: 85
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From: Oregon
Car: 1987 camaro Z28
Engine: 350
Transmission: manual
Axle/Gears: 3.42
Re: carb question
the cheapest way for u is to give the car for diagnostic...they will tell u what needs to be replaced...and u should rebuild the carb
Joined: Dec 2005
Posts: 4,795
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: carb question
The clicking is the Mixture Control Solenoid clicking...it'll do that. that's what meteres the fuel at part throttle. It should stop being an audible click after 30 seconds or so. Since it doesn't, I'd start there with wha'ts wrong. If it ever DOESN"T do that when you turn the car on, then you've got more issues to figure out.
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