Running Lean.... any ideas
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Joined: Aug 2001
Posts: 349
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From: VA
Running Lean.... any ideas
My car is running lean, to the point that it killed my cat and you can smell raw gas out the exhaust... this is bad and needs to be fixed... i'm putting on new plugs and wires this weekend... if this doesn't work, what would you suggest... keep it reasonable too, i'm on a budget, a tight one...
thanks
thanks
Supreme Member
Joined: Jan 2001
Posts: 1,047
Likes: 2
From: Lincoln, Nebraska
Car: 1988 Firebird, 2000 GTP
Engine: 327
Transmission: 700R4
Axle/Gears: 9" posi, 4.11
I'm not sure, but have you checked the Fuel Pressure Regulator? If that goes bad, I think it will run lean. Maybe have a look at the fuel filter.
unless I forgot, but I always thought the O2 sensor would make you run rich. because your mileage gets bad when the O2 sensor is getting bad.
unless I forgot, but I always thought the O2 sensor would make you run rich. because your mileage gets bad when the O2 sensor is getting bad.
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Joined: Oct 1999
Posts: 2,977
Likes: 1
From: Davison / Troy ,Michigan
Car: 1991 Pontiac Firebird
Engine: 3.8
Transmission: 700r4
Axle/Gears: Dana 60
CTS Sensor will do that too. Its the sensor in front of the thermostat. Check the voltage to that and see if thats working correctly.
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