2000 Ranger-3.0 v6. i'm getting very bad gas milage and someone said it may be the E-85 sensor gone bad an stuck in that mode. it's supose to be in the gas line, but i can't find it. any help? thanks Lamar

 

check your blinker fluid first.

 

Way to be a dick, he didnt come here for smart *** responses.

Is your engine throwing any codes?

 

i have no idea what or where that is. Lamar

 

04blackedge- we all have our moments but thanks

 

i don't no anything about the E-85 sensor or else i'd help sry bro

 

In your 2000, it is believed to be somewhere near the tank, possibly in. I had mine replaced in 2004.. The sensor itself was like $500, ugh. I havent heard of them going bad like you describe, though. In the 2001+ FFV Ranger's, it is computer controlled.

 

It isnt determined by the engine's knock sensor?

 

From my understanding:

2001+ FFV - It uses the O2 Sensors to determine fuel makeup post combustion.. it then adjusts from there. The 99-00 FFV used an external fuel contact sensor that determined fuel makeup pre combustion.

 

Correct. For 2001+ FFV's, the fuel composition in inferred, not measured. The PCM watches the Fuel Level Input and the front oxygen sensors. If the PCM sees a significant lambse shift shortly after a refueling event, it assumes that the alcohol content of the fuel has changed and adjusts the A/F ratio accordingly.

 

thanks everyone. Lamar