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12-10-2003, 10:59 PM | #1 |
Registered Member
Join Date: Oct 1999
Location: Pierre Part, La. U.S.A.
Posts: 1,850
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Air fuel ratio meter install???
What wire on the 02 sensor am I suppose to use? One is a ground, one makes the meter show lean, and when I rev the motor it goes up one bar. If I connect to the other 02 wire the meter shows rich all the time no matter how I run the motor.
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88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle. |
12-11-2003, 09:49 AM | #2 | |
2 Stangs in the Stable
Join Date: Apr 2002
Location: Baytown, TX
Posts: 1,209
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Quote:
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'90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128 |
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12-14-2003, 08:41 PM | #3 |
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Posts: n/a
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Don't trust those gauges. They are only toys.
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12-15-2003, 02:25 PM | #4 | |
gear banger
Join Date: Aug 2000
Location: CHICAGO
Posts: 1,144
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Quote:
It's not the gauge that is crap, it's the o2 sensor. The gauge reads the voltage that is sent to the ECM and converts it to a nice LED display. You are geting the same reading that the computer is making adjustments with.
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79 Hatch: NA 347, Stage 2 Canfield Heads, Victor JR. Intake, Blueprinted Holley 750 HP, Solid Roller Cam, Shooting for 10's on motor 93 LX: Tremec, dual friction clutch, fms flywheel, Hedman shorties, O/R H-pipe Ricer hater's club member #49 |
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12-15-2003, 09:28 PM | #5 |
Registered Member
Join Date: Nov 2003
Location: Rockford
Posts: 596
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Is running an EGT out of the question?
I just think by getting an EGT that you could get a more accurate condition of tune. Then you don't have to worry about running leaded race gas! There's alot out there from the autometer, to the Arc 1500 which is digital. It will rec. the high and low temps from the run and price is about $300. |
12-16-2003, 08:07 AM | #6 |
gear banger
Join Date: Aug 2000
Location: CHICAGO
Posts: 1,144
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EGT's are a great way to tune your car and IMO much better then a 3 wire O2 sensor with a gauge. You just have to make sure you hook the EGT up to the cilinder that will run the most lean (I think #6 or 7) The best would be a 7 wire wideband O2 though. You will get a dead on reading right from the collecter and can do some serious tuning.
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79 Hatch: NA 347, Stage 2 Canfield Heads, Victor JR. Intake, Blueprinted Holley 750 HP, Solid Roller Cam, Shooting for 10's on motor 93 LX: Tremec, dual friction clutch, fms flywheel, Hedman shorties, O/R H-pipe Ricer hater's club member #49 |
12-16-2003, 01:07 PM | #7 |
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Posts: n/a
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I had one of those A/F gauges and was completely melting the ends off spark plugs while it read deep in the rich zone.
It would be nice to have an in-car wideband. |
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