Car is really lean and other problems too HELP?
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11 Second Club
Joined: Feb 2003
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From: Nicholls, GA
Car is really lean and other problems too HELP? Ok so I took my car to the dyno this Monday. I expected to put down some really good numbers but was disappointed. It only dynoed 301 HP and 294 tq. Aslo my air/fuel ratio was 15.7:1 I know that is way to lean and I need to get that fixed. I have a MAFT plus here and wanted to know what percent fuel increase I need to use to bring it to about 12.8 or so. I also dont know how long it has been this lean. I have run the car several times and the track with no problem but this was my first time using wideband. Some of my ?'s are can gutting the cats cause it to go that lean or hooking up a A/F gauge in the car. Sorry this is so long but also since the dyno my ABS inop light comes on from time to time along with the asr off and service vechile light and ideas.
Thanks, Malcom
Thanks, Malcom
On The Tree
Joined: Apr 2003
Posts: 101
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From: Valdosta, GA
Originally Posted by bills02raptor
Was that your full throttle AF or everywhere up to full throttle?
I would ifrst try setting base to either 10% or 15% rich.If you ported Mass air ends,get rid of them..Find someone with A-tap to moniter L-terms.
Also an exhaust leak can screw up A/F readings.
Also an exhaust leak can screw up A/F readings.
On The Tree
Joined: Apr 2003
Posts: 101
Likes: 0
From: Valdosta, GA
Originally Posted by Slowhawk
I would ifrst try setting base to either 10% or 15% rich.If you ported Mass air ends,get rid of them..Find someone with A-tap to moniter L-terms.
Also an exhaust leak can screw up A/F readings.
Also an exhaust leak can screw up A/F readings.
