1999 Cherokee problem with EVAP System
 

Hi

I have a 99 Cherokee 4.0L 5 Spd
Its check engine light comes on when it is dead cold.
I have a scanner that says P1494.
Leak detection pump for the EVAP system where is the location of the pump
and how do I go about to check it for problems

Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

Hi Ed,
Incorrect input state detected for the Leak Detection Pump pressure
switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
put the gas cap back on correctly:
http://www.----------.com/leakDetection.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

Eddie DeStafney wrote:
>
> Hi
>
> I have a 99 Cherokee 4.0L 5 Spd
> Its check engine light comes on when it is dead cold.
> I have a scanner that says P1494.
> Leak detection pump for the EVAP system where is the location of the pump
> and how do I go about to check it for problems
>
> Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

Hi Ed,
Incorrect input state detected for the Leak Detection Pump pressure
switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
put the gas cap back on correctly:
http://www.----------.com/leakDetection.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

Eddie DeStafney wrote:
>
> Hi
>
> I have a 99 Cherokee 4.0L 5 Spd
> Its check engine light comes on when it is dead cold.
> I have a scanner that says P1494.
> Leak detection pump for the EVAP system where is the location of the pump
> and how do I go about to check it for problems
>
> Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

Hi Ed,
Incorrect input state detected for the Leak Detection Pump pressure
switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
put the gas cap back on correctly:
http://www.----------.com/leakDetection.pdf
God Bless America, ßill O|||||||O
mailto:--------------------

Eddie DeStafney wrote:
>
> Hi
>
> I have a 99 Cherokee 4.0L 5 Spd
> Its check engine light comes on when it is dead cold.
> I have a scanner that says P1494.
> Leak detection pump for the EVAP system where is the location of the pump
> and how do I go about to check it for problems
>
> Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

I put the gas cab on a coupe times and the light still comes on



"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:413627F2.B0FB7226@cox.net...
> Hi Ed,
> Incorrect input state detected for the Leak Detection Pump pressure
> switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
> put the gas cap back on correctly:
> http://www.----------.com/leakDetection.pdf
> God Bless America, ßill O|||||||O
> mailto:--------------------
>
> Eddie DeStafney wrote:
> >
> > Hi
> >
> > I have a 99 Cherokee 4.0L 5 Spd
> > Its check engine light comes on when it is dead cold.
> > I have a scanner that says P1494.
> > Leak detection pump for the EVAP system where is the location of the
pump
> > and how do I go about to check it for problems
> >
> > Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

I put the gas cab on a coupe times and the light still comes on



"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:413627F2.B0FB7226@cox.net...
> Hi Ed,
> Incorrect input state detected for the Leak Detection Pump pressure
> switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
> put the gas cap back on correctly:
> http://www.----------.com/leakDetection.pdf
> God Bless America, ßill O|||||||O
> mailto:--------------------
>
> Eddie DeStafney wrote:
> >
> > Hi
> >
> > I have a 99 Cherokee 4.0L 5 Spd
> > Its check engine light comes on when it is dead cold.
> > I have a scanner that says P1494.
> > Leak detection pump for the EVAP system where is the location of the
pump
> > and how do I go about to check it for problems
> >
> > Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

I put the gas cab on a coupe times and the light still comes on



"L.W. (ßill) ------ III" <----------@cox.net> wrote in message
news:413627F2.B0FB7226@cox.net...
> Hi Ed,
> Incorrect input state detected for the Leak Detection Pump pressure
> switch: http://www.wjjeeps.com/faultcodes.htm#1400 You probably didn't
> put the gas cap back on correctly:
> http://www.----------.com/leakDetection.pdf
> God Bless America, ßill O|||||||O
> mailto:--------------------
>
> Eddie DeStafney wrote:
> >
> > Hi
> >
> > I have a 99 Cherokee 4.0L 5 Spd
> > Its check engine light comes on when it is dead cold.
> > I have a scanner that says P1494.
> > Leak detection pump for the EVAP system where is the location of the
pump
> > and how do I go about to check it for problems
> >
> > Thanks for any help

Re: 1999 Cherokee problem with EVAP System
 

The cap it came new with?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Eddie DeStafney wrote:
>
> I put the gas cab on a coupe times and the light still comes on

Re: 1999 Cherokee problem with EVAP System
 

The cap it came new with?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Eddie DeStafney wrote:
>
> I put the gas cab on a coupe times and the light still comes on

Re: 1999 Cherokee problem with EVAP System
 

The cap it came new with?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Eddie DeStafney wrote:
>
> I put the gas cab on a coupe times and the light still comes on