I know this is an Evap problem for my 01 3.0L ranger 4X4 but where is the one in the engine compartment located? pictures?
I would like to take it off and pressure test it before replacing.

I have researched Gas mileage but i hope this will help when its fixed.
I filled the tank and have used 1/2 of a tank at 70 miles.
I do not smell gas-burn oil-leak and the engine runs like a top.
Is this normal?
Thanks

 

Welcome to the forum


EVAP system just prevents gas fumes from polluting the air we breath, so no it won't effect MPG one way or the other.
But if Vent or Filler hose is leaking then you can lose gasoline from the tank when you go around a corner, and that WOULD effect MPG

EVAP system is under the bed in 2001 Ranger, above spare tire.

Since you have a Purge Control valve code I would look at that first since it can be the Leak and cause the other code.

Google: 2001 Ranger EVAP repair

There are quite a few videos on EVAP systems

 

Thanks for the reply Ron!!

I have a follow up

When the CEL comes on regardless of the code , wont the engine go into a open loop or a protection mode and recalculate the engine to be in "safe mode" thereby causing different fuel mappings? or am i just reading to much into this?

Google is saying the purge control valve is under the hood. Where exactly is this. google isnt being nice for me.

Thanks again for any additional newb help.

 

EVAP is not an engine code or transmission code

A code turning on the CEL doesn't trigger Open Loop, or "Limp mode" for the transmission(automatic)
Open loop means computer will use Factory air/fuel mix tables based on RPM instead of MAF(mass air flow) sensor or O2 sensors
Cold engine runs in Open Loop, when it warms up computer switches to Closed loop and bases air/fuel mix on MAF and O2 data
ECT(engine coolant temp) sensor tells computer the engine temp

Failure of MAF or O2 sensors can trigger Open Loop
Failure of ECT sensor as well, but it can also fail "warmed up" so computer doesn't know it has fail, it just thinks every time you start the engine it is a restart after sitting only a minute or two, so already warmed up, and no code is set, just rough running when cold.

Codes like Lean or Rich also don't cause Open Loop
Or EVAP codes
TPS(throttle position sensor) codes can but its not 100% of the time

I don't have a 2001 Ranger so can't say where it is

But there is only 1 fuel line and 1 EVAP line coming from the gas tank to the engine bay.
These lines come from gas tank area inside the drivers side frame rail
So look down by the firewall, drivers side, for those 2 lines coming up into engine bay
Fuel line will go to Fuel Rail on upper engine and will usually have a steel braiding
EVAP line will go directly to intake manifold or to EVAP solenoid or Purge valve

 

Perfect, thanks for clearing up the open loop question.
and the location.
Thanks guys