Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
before providing ground for turning on the check engine light, ASD
relay and fuel pump relay?

Thanks

 

Heh, no idea but if you don't live in the high desert like I do all the
ground connections are rusted by now...

Cheers,

Earle

"nrs" <neale_rs@yahoo.com> wrote in message
news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...

Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
before providing ground for turning on the check engine light, ASD
relay and fuel pump relay?

Thanks

 

Heh, no idea but if you don't live in the high desert like I do all the
ground connections are rusted by now...

Cheers,

Earle

"nrs" <neale_rs@yahoo.com> wrote in message
news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...

Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
before providing ground for turning on the check engine light, ASD
relay and fuel pump relay?

Thanks

 

Heh, no idea but if you don't live in the high desert like I do all the
ground connections are rusted by now...

Cheers,

Earle

"nrs" <neale_rs@yahoo.com> wrote in message
news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...

Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
before providing ground for turning on the check engine light, ASD
relay and fuel pump relay?

Thanks

 

Heh, no idea but if you don't live in the high desert like I do all the
ground connections are rusted by now...

Cheers,

Earle

"nrs" <neale_rs@yahoo.com> wrote in message
news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...

Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
before providing ground for turning on the check engine light, ASD
relay and fuel pump relay?

Thanks

 

On Oct 1, 10:26 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> Heh, no idea but if you don't live in the high desert like I do all the
> ground connections are rusted by now...
>
> Cheers,
>
> Earle
>
> "nrs" <neale...@yahoo.com> wrote in message
>
> news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...
>
> Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
> before providing ground for turning on the check engine light, ASD
> relay and fuel pump relay?
>
> Thanks

Thanks Earl. This problem has been going on for a while now and is
mostly documented in the "Delayed start problem" thread. I've tried a
lot of things including cleaning the ground connections and just can't
figure it out. I'm considering taking it to the dealership at this
point, regardless of the potential cost.

 

On Oct 1, 10:26 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> Heh, no idea but if you don't live in the high desert like I do all the
> ground connections are rusted by now...
>
> Cheers,
>
> Earle
>
> "nrs" <neale...@yahoo.com> wrote in message
>
> news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...
>
> Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
> before providing ground for turning on the check engine light, ASD
> relay and fuel pump relay?
>
> Thanks

Thanks Earl. This problem has been going on for a while now and is
mostly documented in the "Delayed start problem" thread. I've tried a
lot of things including cleaning the ground connections and just can't
figure it out. I'm considering taking it to the dealership at this
point, regardless of the potential cost.

 

On Oct 1, 10:26 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> Heh, no idea but if you don't live in the high desert like I do all the
> ground connections are rusted by now...
>
> Cheers,
>
> Earle
>
> "nrs" <neale...@yahoo.com> wrote in message
>
> news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...
>
> Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
> before providing ground for turning on the check engine light, ASD
> relay and fuel pump relay?
>
> Thanks

Thanks Earl. This problem has been going on for a while now and is
mostly documented in the "Delayed start problem" thread. I've tried a
lot of things including cleaning the ground connections and just can't
figure it out. I'm considering taking it to the dealership at this
point, regardless of the potential cost.

 

On Oct 1, 10:26 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> Heh, no idea but if you don't live in the high desert like I do all the
> ground connections are rusted by now...
>
> Cheers,
>
> Earle
>
> "nrs" <neale...@yahoo.com> wrote in message
>
> news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...
>
> Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
> before providing ground for turning on the check engine light, ASD
> relay and fuel pump relay?
>
> Thanks

Thanks Earl. This problem has been going on for a while now and is
mostly documented in the "Delayed start problem" thread. I've tried a
lot of things including cleaning the ground connections and just can't
figure it out. I'm considering taking it to the dealership at this
point, regardless of the potential cost.

 

"nrs" <neale_rs@yahoo.com> wrote in message
news:1191255605.873897.273670@50g2000hsm.googlegro ups.com...
On Oct 1, 10:26 am, "Earle Horton" <el_anglo_burg...@usa.com> wrote:
> Heh, no idea but if you don't live in the high desert like I do all the
> ground connections are rusted by now...
>
> Cheers,
>
> Earle
>
> "nrs" <neale...@yahoo.com> wrote in message
>
> news:1191249224.014494.138940@w3g2000hsg.googlegro ups.com...
>
> Does anyone know if the ´95 YJ PCM waits for a signal from any sensor
> before providing ground for turning on the check engine light, ASD
> relay and fuel pump relay?
>
> Thanks

Thanks Earl. This problem has been going on for a while now and is
mostly documented in the "Delayed start problem" thread. I've tried a
lot of things including cleaning the ground connections and just can't
figure it out. I'm considering taking it to the dealership at this
point, regardless of the potential cost.
--- --- --- --- --- --- --- --- --- ---
While I am generally in favor of the scientific approach, have you priced or
located a junk yard PCM? That will isolate whether the problem is interior
to the PCM or not, and may be cheaper than a couple of ASE mechanics
scratching their heads for two hours on your dollar.

My '95 YJ has always taken one or two seconds of cranking before it will
fire cold. It did this new, and I always figured it was part of the nature
of the beast. Has it thrown any codes? They say you can read them by
switching the key on and off a few times and watching the check engine light
flash.

Cheers,

Earle