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Gauges Installed, but problems. (pic)

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Old Mar 12, 2007 | 03:59 AM
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Default Gauges Installed, but problems. (pic)

Well i got all my gauges installed,

A/F Ratio
Vaccum
Fuel Pressure




BUT, when a friend and I was testing them out BEFORE i mounted the pod it was fine we had the a/f and vaccum testing, no problems.

Once i clean up all the loose wires and tuck everything, i started up the truck and got a "Check Engine" light. So i was like "Wonderful!" and just suspected it to be the o2 sensor since i had to spice the sensor wire and connect it to my gauge. I coudn't find a diagram so i cut open all 4 wires and checked each one. All of them gave me lean readings on the gauge, except 1 tan/white wire and thats the one i chose. I taped all thm back up and pluged the sensor back in and everything.

the problem is.. at low rpms about 1-1.5 (idle) or 30 below speeds it like my engine is choking itself. Like its not getting enough air, and it will shut off, then i have to put in neutral and start it.

Tomorrow im going to order some new o2 sensors and replace my old ones. I think they where bad anyways. They look like org ones and i have 85k miles on my truck. 2000
 
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Old Mar 12, 2007 | 12:17 PM
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Default RE: Gauges Installed, but problems. (pic)

Nice lookin guages!! Check to see which code came up, it might help narrow your search. This can be done by turning the key to accessory and back off 3 times in a row and the third time leaving it on accessory. look in the odometer and it will display a "P" code that can be searched.
 
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Old Mar 12, 2007 | 07:09 PM
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Default RE: Gauges Installed, but problems. (pic)

Get a Haynes manual, it will tell you which wires are what. You don't want to play a guesing game when it comes to wiring. The codes are coming up most likely because you spliced into the wrong wire and it is sending current to the ECM. Stok sensors work from 0-1volt so any wrong splice can make it not function right.
Plus with you splicing into the stock O2 sensor your guage is going to just bounce back and forth because it is a closed loop sensor. The sensor does not know how rich or how lean of a mixture you have so it is constantly telling the computer to richen and lean the mixture under normal driving. Once you get on it the computer goes to open loop and just starts dumping fuel going by a certain Map and you will either get a rich signal, stoich signal or a lean signal but the bouncing will stop.

If you wnat a good readind you will have to get a wideband O2 sensor with a reader, weld a new bung before the cat. and wire in the sensor to the guage directly. It will give you a precise reading. Your guage will still bounce under normal driving just not as much, but under opne loop you will be able to tell how rich or lean you are and adjust things from there.
 
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Old Mar 12, 2007 | 07:35 PM
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Default RE: Gauges Installed, but problems. (pic)

nice guages. this is kinda off the subject but howd u get ur originals to be blue like that?
 
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