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Fuel Smell

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Old Jun 20, 2004 | 05:05 PM
  #1  
ThraxXx's Avatar
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From: Ontario, Canada
Car: 1988 Pontiac Trans Am
Engine: 5.0L Fuel Injection
Transmission: Automatic 4speed /w OVerdrive
Fuel Smell

Hey All..

Well I finally got my car running right...sorta. I replaced the EGR Valve and selonoid. Took the car out for a test and YAY!! no EGR or SES codes coming up. Now I rebooted the ECM and took the car for a good run from here to huntsville which is about 180 Kilometers away and back. I noticed that when I came back that there is still a strong smell of gas in my exhaust which means my car is still running rich.

What else should I do/change to have the car lean out so its not running rich. Could this be because I added mods without chip burning?

Any advice would be greatly apreciated.

thanks
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Old Jun 20, 2004 | 07:09 PM
  #2  
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
What mods do you have besides the ones in your sig? usualy these cars will run a bit rich when you have the stock tune and every bolt on. My car ran rich with my intake and full exhaust. Do you have a cat? Have you backed off the fuel pressure a bit.
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Old Jun 20, 2004 | 10:38 PM
  #3  
ThraxXx's Avatar
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From: Ontario, Canada
Car: 1988 Pontiac Trans Am
Engine: 5.0L Fuel Injection
Transmission: Automatic 4speed /w OVerdrive
I have a full magnaflow exhaust. Magnaflow cat and muffler and a 2.5" pipe going from headers back. I forgot to mention that I replaced the O2 as well.

I am not sure how to back off the fuel preasure.
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Old Jun 21, 2004 | 08:41 AM
  #4  
ShiftyCapone's Avatar
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by ThraxXx

I am not sure how to back off the fuel preasure.
Check out the ultimate TBI mods for that. Also, Bosch 02's can make your car run slightly rich.
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Old Jun 22, 2004 | 12:07 AM
  #5  
Z28GEN3's Avatar
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From: Buckeye AZ
check your evap canister, i had that problem a while back.
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