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Starts and idles like a champ. Just dies when I put on the gas

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Old Nov 7, 2020 | 05:49 PM
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BOHDAN's Avatar
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Starts and idles like a champ. Just dies when I put on the gas

Gents,
New to the forum and new to Firebirds. Tried starting the car and it does. However, it stalls trying to put on the gas. Mechanic says the codes don't say anuthing. Put in a new TPS, MAF and still nothing. The ECM seems good too. Has anybody else have a similar problem? My mechanic is swaying me to put in carbs and get rid of all these sensors. Thoughts? Mighty obliged. Cheers
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Old Nov 7, 2020 | 08:40 PM
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NoEmissions84TA's Avatar
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From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: Starts and idles like a champ. Just dies when I put on the gas

You are missing a lot of info like:
Car
Year
Engine size/code

Please fill out the info for your profile so we can help.
Pictures help tremendously.
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Old Nov 7, 2020 | 10:45 PM
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1986BANDIT's Avatar
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From: waterloo ontario
Car: 1986 trans am
Engine: 305/350
Transmission: 5 speed
Axle/Gears: 3.27
Re: Starts and idles like a champ. Just dies when I put on the gas

accurate specifics are important,as "no-emmisions" has said
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Old Nov 8, 2020 | 06:23 AM
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Re: Starts and idles like a champ. Just dies when I put on the gas

Originally Posted by BOHDAN
Gents,
New to the forum and new to Firebirds. Tried starting the car and it does. However, it stalls trying to put on the gas. Mechanic says the codes don't say anuthing. Put in a new TPS, MAF and still nothing. The ECM seems good too. Has anybody else have a similar problem? My mechanic is swaying me to put in carbs and get rid of all these sensors. Thoughts? Mighty obliged. Cheers
sorry gents it’s a 88 Formula with a 305. Cheers
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Old Nov 8, 2020 | 08:15 AM
  #5  
vinny R's Avatar
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From: Florida
Car: 1991 Z28
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: 3:42 Auburn
Re: Starts and idles like a champ. Just dies when I put on the gas

Originally Posted by BOHDAN
sorry gents it’s a 88 Formula with a 305. Cheers
You are not getting enough fuel.
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Old Nov 8, 2020 | 10:45 AM
  #6  
1986BANDIT's Avatar
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From: waterloo ontario
Car: 1986 trans am
Engine: 305/350
Transmission: 5 speed
Axle/Gears: 3.27
Re: Starts and idles like a champ. Just dies when I put on the gas

it seems you "may" have a low pressure/starvation fuel situation,can you check fuel pressure(you will need to install a gauge)?
also,if your car is a tpi and was sitting they have a notorious habit of needing injectors or having them removed and
properly/professionally cleaned but i would check the fuel pressure first.fuel filter can sometimes be the problem,
old bad fuel or if the sock on the pickup tube in the gas tank is deteriorated or plugged.these are just a few possible issues.

it could be 1 or a combination of all of these things or may be something as well as them.
i would use a process of elimination and you will get it.dont jump the gun on switching to carb too quick.
tpi's are finicky when something is wrong but make so much low end torque compared to a carb.
and use a lot less fuel when set up right.a properly setup tpi will always be better than carb imo.

Last edited by 1986BANDIT; Nov 8, 2020 at 10:54 AM.
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