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- - Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor) (https://www.jeepscanada.com/jeep-mailing-list-32/possible-bypass-cps-crankshaft-position-sensor-crankcase-position-sensor-34665/)

Erich

01-23-2006 10:54 AM

Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

I checked for previous topics on this but I did not find one about
bypassing the CPS. I am selling my 88 Comanche and wouldn't you know
the damned thing will only start cold, one time and thats it. My
experience with my 87 tells me its the CPS. I would love to just
bypass the thing so I can sell it, or at least so I can tell the guy
buying it that this is what the problem is. He is a friend of mine and
I am giving him a deal but he is not mechanically inclined so I will
end up fixing it for him anyway but I would like to wait for spring
when its a little warmer than 10 degrees outside.

By the way I am new to the group! My name is Erich I live in the
Rockies and I have had a number of Jeeps over the past 25 years. My
wife just bought me a 2006 Unlimited so I am learning all about Jeeps
again.

Thanks!

Lee Ayrton

01-23-2006 11:17 AM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

duplicated post

Lee Ayrton

01-23-2006 11:17 AM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

The CPS is how the computer knows how many RPMs the engine is making and
when the crank passes TDC (or some other benchmark), and syncs spark and
fuel (for FI) to it. With no CPS the computer doesn't know that the
engine is turning at all.

Erich wrote:
> I checked for previous topics on this but I did not find one about
> bypassing the CPS. I am selling my 88 Comanche and wouldn't you know
> the damned thing will only start cold, one time and thats it. My
> experience with my 87 tells me its the CPS. I would love to just
> bypass the thing so I can sell it, or at least so I can tell the guy
> buying it that this is what the problem is. He is a friend of mine and
> I am giving him a deal but he is not mechanically inclined so I will
> end up fixing it for him anyway but I would like to wait for spring
> when its a little warmer than 10 degrees outside.
>
> By the way I am new to the group! My name is Erich I live in the
> Rockies and I have had a number of Jeeps over the past 25 years. My
> wife just bought me a 2006 Unlimited so I am learning all about Jeeps
> again.
>
>
> Thanks!
>

Lee Ayrton

01-23-2006 11:17 AM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

duplicated post

Stupendous Man

01-23-2006 01:02 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

duplicated post

Stupendous Man

01-23-2006 01:02 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

duplicated post

Stupendous Man

01-23-2006 01:02 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

> I would love to just
> bypass the thing so I can sell it,

No problem.
You will need a telegraph key, a rubber band, a surplus US Navy URM-43a
signal generator, a deer antler and an pineapple.
Tie the antler to the torsion dampener with the rubber band and some Elmer's
glue. Place the telegraph key where the antler will tap it on each
revolution. Wire the telegraph key to the signal generator set for 5500 Hz
at 4.2V and then shove the pineapple up your ass for trying to hide a
problem rather than fix it when selling a vehicle.
--
Stupendous Man,
Defender of Freedom, Advocate of Liberty

Earle Horton

01-23-2006 02:34 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

duplicated posting

Earle Horton

01-23-2006 02:34 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

duplicated posting

Earle Horton

01-23-2006 02:34 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

How far?

Earle

"Stupendous Man" <spam@trap.com> wrote in message
news:43kjvgF1nov7aU1@individual.net...
> > I would love to just
> > bypass the thing so I can sell it,
>
> No problem.
> You will need a telegraph key, a rubber band, a surplus US Navy URM-43a
> signal generator, a deer antler and an pineapple.
> Tie the antler to the torsion dampener with the rubber band and some
Elmer's
> glue. Place the telegraph key where the antler will tap it on each
> revolution. Wire the telegraph key to the signal generator set for 5500 Hz
> at 4.2V and then shove the pineapple up your ass for trying to hide a
> problem rather than fix it when selling a vehicle.
> --
> Stupendous Man,
> Defender of Freedom, Advocate of Liberty
>
>

J. Sprauer

01-23-2006 02:56 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

LMAO THAT IS TOO FUNNY!!!!!!!!!!!1

"Stupendous Man" <spam@trap.com> wrote in message
news:43kjvgF1nov7aU1@individual.net...
> > I would love to just
> > bypass the thing so I can sell it,
>
> No problem.
> You will need a telegraph key, a rubber band, a surplus US Navy URM-43a
> signal generator, a deer antler and an pineapple.
> Tie the antler to the torsion dampener with the rubber band and some
Elmer's
> glue. Place the telegraph key where the antler will tap it on each
> revolution. Wire the telegraph key to the signal generator set for 5500 Hz
> at 4.2V and then shove the pineapple up your ass for trying to hide a
> problem rather than fix it when selling a vehicle.
> --
> Stupendous Man,
> Defender of Freedom, Advocate of Liberty
>
>

J. Sprauer

01-23-2006 02:56 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

J. Sprauer

01-23-2006 02:56 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

twaldron

01-23-2006 04:32 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

Is that a 6 pt. antler for a six cylinder?
__________________________________________________ ___________________
2003 TJ Rubicon * 2001 XJ Sport * 1971 Bill Stroppe Baja Bronco

"There is a very fine line between 'hobby' and 'mental illness'."

Pronunciation: 'jEp Function: noun Date: 1940

Etymology: from g. p. (G= 'Government' P= '80 inch wheelbase')
A small general-purpose motor vehicle with 80" wheelbase, 1/4-ton
capacity and four-wheel drive used by the U.S. army in World War II.
__________________________________________________ ___________________

Stupendous Man wrote:
>>I would love to just
>>bypass the thing so I can sell it,
>
>
> No problem.
> You will need a telegraph key, a rubber band, a surplus US Navy URM-43a
> signal generator, a deer antler and an pineapple.
> Tie the antler to the torsion dampener with the rubber band and some Elmer's
> glue. Place the telegraph key where the antler will tap it on each
> revolution. Wire the telegraph key to the signal generator set for 5500 Hz
> at 4.2V and then shove the pineapple up your ass for trying to hide a
> problem rather than fix it when selling a vehicle.

twaldron

01-23-2006 04:32 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

twaldron

01-23-2006 04:32 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

Matt Macchiarolo

01-23-2006 04:42 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

ROFLMFAO!!

"Stupendous Man" <spam@trap.com> wrote in message
news:43kjvgF1nov7aU1@individual.net...
>> I would love to just
>> bypass the thing so I can sell it,
>
> No problem.
> You will need a telegraph key, a rubber band, a surplus US Navy URM-43a
> signal generator, a deer antler and an pineapple.
> Tie the antler to the torsion dampener with the rubber band and some
> Elmer's glue. Place the telegraph key where the antler will tap it on each
> revolution. Wire the telegraph key to the signal generator set for 5500 Hz
> at 4.2V and then shove the pineapple up your ass for trying to hide a
> problem rather than fix it when selling a vehicle.
> --
> Stupendous Man,
> Defender of Freedom, Advocate of Liberty
>

Matt Macchiarolo

01-23-2006 04:42 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Matt Macchiarolo

01-23-2006 04:42 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Jim Smith

01-23-2006 05:08 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Wow, with friend like you, who would need an enemy?
This has got to be some sort of joke.

When you think you've heard it all, just log onto the internet!

Jim Smith

"Erich" <rockierubicon@aol.com> wrote in message
news:1138031689.798817.326340@o13g2000cwo.googlegr oups.com...
>I checked for previous topics on this but I did not find one about
> bypassing the CPS. I am selling my 88 Comanche and wouldn't you know
> the damned thing will only start cold, one time and thats it. My
> experience with my 87 tells me its the CPS. I would love to just
> bypass the thing so I can sell it, or at least so I can tell the guy
> buying it that this is what the problem is. He is a friend of mine and
> I am giving him a deal but he is not mechanically inclined so I will
> end up fixing it for him anyway but I would like to wait for spring
> when its a little warmer than 10 degrees outside.
>
> By the way I am new to the group! My name is Erich I live in the
> Rockies and I have had a number of Jeeps over the past 25 years. My
> wife just bought me a 2006 Unlimited so I am learning all about Jeeps
> again.
>
>
> Thanks!
>

Jim Smith

01-23-2006 05:08 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Jim Smith

01-23-2006 05:08 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Erich

01-23-2006 08:17 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Thanks for the input, I figured as much. I had this problem on the
road with my 87, it would be great if there was a quick fix so you
could get it home and not have to have it towed.

Erich

01-23-2006 08:17 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Thanks for the input, I figured as much. I had this problem on the
road with my 87, it would be great if there was a quick fix so you
could get it home and not have to have it towed.

Erich

01-23-2006 08:17 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Thanks for the input, I figured as much. I had this problem on the
road with my 87, it would be great if there was a quick fix so you
could get it home and not have to have it towed.

Erich

01-23-2006 08:20 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

You might want to re-read what I wrote, I have every intention of
fixing it for him, I am looking for some intelligent discussion on how
to isolate or temporarily fix it for him so I don't have to be out
working on it in the sub zero weather.

Erich

01-23-2006 08:20 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Erich

01-23-2006 08:20 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Stupendous Man

01-23-2006 08:27 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

"Erich" <rockierubicon@aol.com> wrote in message
news:1138065626.652550.104460@g43g2000cwa.googlegr oups.com...
> You might want to re-read what I wrote, I have every intention of
> fixing it for him, I am looking for some intelligent discussion on how
> to isolate or temporarily fix it for him so I don't have to be out
> working on it in the sub zero weather.
>

There isn't one. The signal is critical for the engine to operate. My "Rube
Goldberg" invention would work if i have the freq and voltage right, but is
more work than it takes to do it right.

Stupendous Man

01-23-2006 08:27 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Stupendous Man

01-23-2006 08:27 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Erich

01-23-2006 08:36 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Perhaps I came off a little cold, so this is my disclaimer of sort. I
am not a bad guy, I felt really bad that when my friend came to see the
truck it would not start after the first try. I told him I had the
same problem with my 87 and that I would research it so we could get it
running. I would never screw anyone over especially some one I work
with. I went out after work and bought the sensor, $35 I still don't
want to put it in until things warm up a little. Here is my original
text.

I wrote:
> I checked for previous topics on this but I did not find one about
> bypassing the CPS. I am selling my 88 Comanche and wouldn't you know
> the damned thing will only start cold, one time and thats it. My
> experience with my 87 tells me its the CPS. I would love to just
> bypass the thing so I can sell it, or at least so I can tell the guy
> buying it that this is what the problem is. He is a friend of mine and
> I am giving him a deal but he is not mechanically inclined so I will
> end up fixing it for him anyway but I would like to wait for spring
> when its a little warmer than 10 degrees outside.

> By the way I am new to the group! My name is Erich I live in the
> Rockies and I have had a number of Jeeps over the past 25 years. My
> wife just bought me a 2006 Unlimited so I am learning all about Jeeps
> again.

> Thanks!

Erich

01-23-2006 08:36 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Erich

01-23-2006 08:36 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Stupendous Man

01-23-2006 11:57 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Erich, I read that in your post, but it was just too easy a target to
resist. It's just that I instantly saw your problem as one that has no
"work-around", if the CPS quits, it's dead..
I am a mechanic and see this stuff all the time, at least in your case the
guy knows something is wrong. It is usually my sad duty to tell people what
they really bought and what the former owner did to it.
Sorry if i offended you, it was not my intention.

--
Stupendous Man,
Defender of Freedom, Advocate of Liberty
..

Stupendous Man

01-23-2006 11:57 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Stupendous Man

01-23-2006 11:57 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor, Crankcase Position Sensor)

Mike Romain

01-25-2006 02:19 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

I have found that in most cases, it is only a dirty connection on the
CPS. The plug sits on top of the manifold at the back. WD40 will work
to clean it, but the best is a spray contact cleaner for electronics.

The other sneaky one that will cause your symptoms bit my 88 after I
changed the CPS for nothing when the plug clean didn't work is a bad
ground strap from the back of the engine head to the firewall. These go
ratty easy and the body can steal some ground, but not enough to be
stable.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

Erich wrote:
>
> I checked for previous topics on this but I did not find one about
> bypassing the CPS. I am selling my 88 Comanche and wouldn't you know
> the damned thing will only start cold, one time and thats it. My
> experience with my 87 tells me its the CPS. I would love to just
> bypass the thing so I can sell it, or at least so I can tell the guy
> buying it that this is what the problem is. He is a friend of mine and
> I am giving him a deal but he is not mechanically inclined so I will
> end up fixing it for him anyway but I would like to wait for spring
> when its a little warmer than 10 degrees outside.
>
> By the way I am new to the group! My name is Erich I live in the
> Rockies and I have had a number of Jeeps over the past 25 years. My
> wife just bought me a 2006 Unlimited so I am learning all about Jeeps
> again.
>
> Thanks!

Mike Romain

01-25-2006 02:19 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

Mike Romain

01-25-2006 02:19 PM

Re: Is it possible to bypass the CPS (Crankshaft Position Sensor,Crankcase Position Sensor)

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