Barely passed smog - high HC advise
04-29-2014, 04:35 PM
#1
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Car: 86 TA
Engine: 305 TPI
Transmission: 700R4 - 2200 stall
Axle/Gears: 3.42 posi
Barely passed smog - high HC advise
Kindof amazing, at the exact limit on the two numbers.
From what I read its unburned fuel, any advise based on the other numbers the most probably cause?
It does smell gassy and the mileage sucks (~11mpg). Otherwise it seems to run fine.
From what I read its unburned fuel, any advise based on the other numbers the most probably cause?
It does smell gassy and the mileage sucks (~11mpg). Otherwise it seems to run fine.
05-01-2014, 04:51 AM
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Car: 1988 Pontiac trans am
Engine: 305
Transmission: 700R4
Re: Barely passed smog - high HC advise
check TPS voltage. Mine smelled gassy when it started to fail.
05-01-2014, 09:48 AM
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Barely passed smog - high HC advise
Sometimes it's arcing inside the cap, replace the cap and rotor.
06-20-2014, 09:40 PM
#5
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Car: 1983 Pontiac Trans Am
Engine: 5.0 Crossfire Injection
Transmission: 700 4R
Axle/Gears: 4.10
Re: Barely passed smog - high HC advise
Check your fuel pressure and tps setting.
Your % co2 should be closer to 15.1
Your % co2 should be closer to 15.1
06-20-2014, 09:42 PM
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Car: 1983 Pontiac Trans Am
Engine: 5.0 Crossfire Injection
Transmission: 700 4R
Axle/Gears: 4.10
Re: Barely passed smog - high HC advise
Check your fuel pressure and your tps setting.
Your % co2 should be closer to 15.1
I think you are to rich.
Your % co2 should be closer to 15.1
I think you are to rich.
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