'93 GCherokee 6 Hard Start
01-03-2004 | 07:43 PM
#111
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
http://members.***.net/wilsond/temp/15.jpg
http://members.***.net/wilsond/temp/16.jpg
Those have to be the wost scans I have ever made. :(
Should be readable though.
01-03-2004 | 07:43 PM
#112
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
http://members.***.net/wilsond/temp/15.jpg
http://members.***.net/wilsond/temp/16.jpg
Those have to be the wost scans I have ever made. :(
Should be readable though.
01-03-2004 | 08:00 PM
#113
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Thanks Doug,
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
01-03-2004 | 08:00 PM
#114
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Thanks Doug,
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
01-03-2004 | 08:00 PM
#115
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Thanks Doug,
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
I'm really hoping all this mess comes down to hidden corrosion.
I pushed this old girl into the garage, so when I catch my breath, I'll
check the wires between the PCM and the CPS, then between the two to the
dist.
"DougW" <post.replies@invalid.address> wrote in message
news:34JJb.51573$PK3.45801@okepread01...
> D did pass the time by typing:
> > Thanks Doug,
> > Took the coil in and it tested at 14,500 on the secondary.
> > Another thing they had me check was for the 8 volts at the CPS
connection. I
> > get 0 vdc between the black/white and black/blue wire. 0.18 vdc
between
> > the black/blue and the other wire. SInce I don't have 8 vdc happening
there,
> > it points to the wiring between the CPS and the PCM, or to the PCM
itself
> > right?
>
> The PCM feeds 8V to the Crankshaft Position Sensor and the Camshaft
Position
> Sensor. The wire should be White with a Black Stripe
>
> While you have the PCM out.
>
> Disconnect the sensor in the distributor and check between
> Pin 7 on the PCM harness and Pin 1 (the White/black wire)
> on the CPS connector. There should be near zero resistance.
> Also check between either of those pins and the white/black
> wire going to the distributor. Those form a T splice that
> might have gotten corroded.
>
>
> > I have the PCM on my desk now. Anything I can check on it?
>
> Not rilly. To check the PCM requires a scantool.
>
> Hold on a sec.. lemme scan something for you.
>
> I'll post back when it's done.
>
> --
> DougW
>
>
01-03-2004 | 08:37 PM
#116
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Sat, 3 Jan 2004 19:00:41 -0600, "D" <dpfer@r.com> wrote:
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
01-03-2004 | 08:37 PM
#117
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Sat, 3 Jan 2004 19:00:41 -0600, "D" <dpfer@r.com> wrote:
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
01-03-2004 | 08:37 PM
#118
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
On Sat, 3 Jan 2004 19:00:41 -0600, "D" <dpfer@r.com> wrote:
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
>Thanks Doug,
>I'm really hoping all this mess comes down to hidden corrosion.
>I pushed this old girl into the garage, so when I catch my breath, I'll
>check the wires between the PCM and the CPS, then between the two to the
>dist.
>
I drove my wife's '93 Cherokee home one night...it was running just
fine. The next morning I went out to start it and nothing.
After many checks and replacing the crank sensor, it turned out to be
the PCM.
First disconnect the coil and probe the terminals of the harness with
a test light connected to a good ground while cranking the motor. One
of the terminals should light the light. If you have 12v to one
terminal on the coil harness while cranking, check the other terminal
with the test light hooked to 12v battery voltage. If the light
flashes while you're cranking the engine, replace the coil. If you
have no light, first test the wire between the coil and the PCM for an
open. If the wire is ok, replace the PCM.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
01-04-2004 | 10:14 AM
#119
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Doug, those scans were great! Thanks!
Freezing rain here today, thankfully my son helped me push the old girl into
the garage. Took me half a day to clear enough room in there for her.
Do you know where, in your diagram page 16, the splice or connector K25
might be? I'm going out in a few minutes to check continuity on the
white/black wire from the PCM plug to both the CPS and the CamPS, making
sure to disc. the CamPS first.
Thanks again.
Denny
"DougW" <post.replies@invalid.address> wrote in message
news:xkJJb.51579$PK3.22091@okepread01...
>
> > Hold on a sec.. lemme scan something for you.
> >
> > I'll post back when it's done.
>
> http://members.***.net/wilsond/temp/15.jpg
> http://members.***.net/wilsond/temp/16.jpg
>
> Those have to be the wost scans I have ever made. :(
>
> Should be readable though.
>
>
Freezing rain here today, thankfully my son helped me push the old girl into
the garage. Took me half a day to clear enough room in there for her.
Do you know where, in your diagram page 16, the splice or connector K25
might be? I'm going out in a few minutes to check continuity on the
white/black wire from the PCM plug to both the CPS and the CamPS, making
sure to disc. the CamPS first.
Thanks again.
Denny
"DougW" <post.replies@invalid.address> wrote in message
news:xkJJb.51579$PK3.22091@okepread01...
>
> > Hold on a sec.. lemme scan something for you.
> >
> > I'll post back when it's done.
>
> http://members.***.net/wilsond/temp/15.jpg
> http://members.***.net/wilsond/temp/16.jpg
>
> Those have to be the wost scans I have ever made. :(
>
> Should be readable though.
>
>
01-04-2004 | 10:14 AM
#120
Guest
Posts: n/a
Re: '93 GCherokee 6 Hard Start
Doug, those scans were great! Thanks!
Freezing rain here today, thankfully my son helped me push the old girl into
the garage. Took me half a day to clear enough room in there for her.
Do you know where, in your diagram page 16, the splice or connector K25
might be? I'm going out in a few minutes to check continuity on the
white/black wire from the PCM plug to both the CPS and the CamPS, making
sure to disc. the CamPS first.
Thanks again.
Denny
"DougW" <post.replies@invalid.address> wrote in message
news:xkJJb.51579$PK3.22091@okepread01...
>
> > Hold on a sec.. lemme scan something for you.
> >
> > I'll post back when it's done.
>
> http://members.***.net/wilsond/temp/15.jpg
> http://members.***.net/wilsond/temp/16.jpg
>
> Those have to be the wost scans I have ever made. :(
>
> Should be readable though.
>
>
Freezing rain here today, thankfully my son helped me push the old girl into
the garage. Took me half a day to clear enough room in there for her.
Do you know where, in your diagram page 16, the splice or connector K25
might be? I'm going out in a few minutes to check continuity on the
white/black wire from the PCM plug to both the CPS and the CamPS, making
sure to disc. the CamPS first.
Thanks again.
Denny
"DougW" <post.replies@invalid.address> wrote in message
news:xkJJb.51579$PK3.22091@okepread01...
>
> > Hold on a sec.. lemme scan something for you.
> >
> > I'll post back when it's done.
>
> http://members.***.net/wilsond/temp/15.jpg
> http://members.***.net/wilsond/temp/16.jpg
>
> Those have to be the wost scans I have ever made. :(
>
> Should be readable though.
>
>