Still bad gas mileage and running rich

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88BroncoBlack

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ok guys ive had a few posts on here and still havent figured this, im am still getting bad gas mileage and am running rich, heres what iver fixed, changed and/or replaced, gimme some more ideas

1 new cap rotor plugs and wires

2 new tps sensor

3 new headers exhaust and 02

4 new timing chain and sprockets

5 checked timing

6 no longer using egr or AIR

 

muddinlate86

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i wish i could help man but im in the same boat.if you do figure it out though send me a pm it might be the same with mine

good luck

 

BroncoJoe19

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ok guys ive had a few posts on here and still havent figured this, im am still getting bad gas mileage and am running rich, heres what iver fixed, changed and/or replaced, gimme some more ideas1 new cap rotor plugs and wires

2 new tps sensor

3 new headers exhaust and 02

4 new timing chain and sprockets

5 checked timing

6 no longer using egr or AIR
Since yuo are no longer using your EGR, You may want to do a little research about what kind of info the EVP sensor will give your computer, and if that would adversly affect anything.The EVP is the Egr Position Sensor.

Muddinlate86... you need to pull codes, or get someone to do it for you. The money you save on gas could be used to pay for someone to test it for you.

 

BroncoJoe19

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Did you adjust the TPS?

It should be between 0.5 volts and 1 volt closed.

Other things that I can think of off hand that would cause to run rich, are

vacuum leaks

exhaust leak, prior to the O2 sensor,

bad O2 sensor, or bad connections to it.

 

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