Runnin Rich... Too Rich??

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Slimer93

New Member

Mar 27, 2003

20

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0

Vancouver WA

Mar 27, 2004

#1

• Mar 27, 2004

• #1

93 5.0 w/adjustable f/p. My a/f meter has been hooked up and it slowly builds up to the max reading as the car warms up. My Fuel Pressure is set at 40 w/o vac. 35 with. My o2 sensors are 80k miles old and im running w/o cats. Im positive the meter is hooked up correctly, but I just want some of you professionals to help out. Everything else is stock BTW. Thanks

 

HISSIN50

"How long does it take to get help in here?

15 Year Member

Nov 29, 1999

31,179

33

129

Mar 28, 2004

#2

• Mar 28, 2004

• #2

im not a professional, LOL. but if you are using a relatively cheap o2 gauge, dont use it for any sort of tuning. you need wide band O2's for that. you may not be in bad shape, but are worrying since you are lookin at the gauge. just my thinking.

 

donkey_punch

New Member

Jan 16, 2004

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northern****ingjersey

Mar 28, 2004

#3

• Mar 28, 2004

• #3

from what i was told. O2 sensors should be changed about ever 50 to 60K. If not sooner. with 80K on those O2 sensors, they should be changed. that would be the first thing i would change. then see from there. hope this helps

 

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PRO50SC

New Member

Dec 28, 2003

1,012

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Olney, Maryland

Mar 28, 2004

#4

• Mar 28, 2004

• #4

HISSIN50 said:

im not a professional, LOL. but if you are using a relatively cheap o2 gauge, dont use it for any sort of tuning. you need wide band O2's for that. you may not be in bad shape, but are worrying since you are lookin at the gauge. just my thinking.

Click to expand...

Agree with above. As far as changing them every 50k or what ever. I have almost 140k on mine and still work great.
What makes you think the car is running rich? Is it blowing alot of black smoke? Can you actually smell the fuel in the exhaust? Are you sure there even is a problem? How does the car run in general?