Yes, that is a problem. My son's van was recently dead with a code 54.
It needed a new pickup inside the distributor. I would try cleaning
it's electrical connection first though.

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)

Jeepster wrote:
>
> hey man i got codes
>
> 12 Direct battery input to PCM was disconnected within the last 50
> Key-on cycles
> 54 No camshaft signal detected during engine cranking.
> 55 Completion of fault code display on Check Engine lamp.
>
> Do you think that the cam shaft sensor could be the problem being as it
> is not detected during cranking.
>
> Thanks
> Dan

 

Yes, that is a problem. My son's van was recently dead with a code 54.
It needed a new pickup inside the distributor. I would try cleaning
it's electrical connection first though.

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)

Jeepster wrote:
>
> hey man i got codes
>
> 12 Direct battery input to PCM was disconnected within the last 50
> Key-on cycles
> 54 No camshaft signal detected during engine cranking.
> 55 Completion of fault code display on Check Engine lamp.
>
> Do you think that the cam shaft sensor could be the problem being as it
> is not detected during cranking.
>
> Thanks
> Dan

 

Mike Romain wrote:
> Yes, that is a problem. My son's van was recently dead with a code
> 54. It needed a new pickup inside the distributor. I would try
> cleaning it's electrical connection first though.

Ditto. Clean the connector first. Also check to see that the
rotor doesn't move side to side or the distributor is full of oil.
Since to fix that is most often a new distributor and new distributors
come with a new camshaft position sensor.

> Jeepster wrote:
>>
>> hey man i got codes
>>
>> 12 Direct battery input to PCM was disconnected within the last 50
>> Key-on cycles
>> 54 No camshaft signal detected during engine cranking.
>> 55 Completion of fault code display on Check Engine lamp.
>>
>> Do you think that the cam shaft sensor could be the problem being as
>> it is not detected during cranking.

Not a difficult part to replace but you do have to do some minor surgury.

http://www.revbeergoggles.com/camshaftps/
Never did finish a webpage, but the idea and pictures are there
for doing the 93ZJ 4.0.

Removal and reinstall is the same as a new distributor.
http://revbeergoggles.com/distributor/

--
DougW

 

Mike Romain wrote:
> Yes, that is a problem. My son's van was recently dead with a code
> 54. It needed a new pickup inside the distributor. I would try
> cleaning it's electrical connection first though.

Ditto. Clean the connector first. Also check to see that the
rotor doesn't move side to side or the distributor is full of oil.
Since to fix that is most often a new distributor and new distributors
come with a new camshaft position sensor.

> Jeepster wrote:
>>
>> hey man i got codes
>>
>> 12 Direct battery input to PCM was disconnected within the last 50
>> Key-on cycles
>> 54 No camshaft signal detected during engine cranking.
>> 55 Completion of fault code display on Check Engine lamp.
>>
>> Do you think that the cam shaft sensor could be the problem being as
>> it is not detected during cranking.

Not a difficult part to replace but you do have to do some minor surgury.

http://www.revbeergoggles.com/camshaftps/
Never did finish a webpage, but the idea and pictures are there
for doing the 93ZJ 4.0.

Removal and reinstall is the same as a new distributor.
http://revbeergoggles.com/distributor/

--
DougW

 

Mike Romain wrote:
> Yes, that is a problem. My son's van was recently dead with a code
> 54. It needed a new pickup inside the distributor. I would try
> cleaning it's electrical connection first though.

Ditto. Clean the connector first. Also check to see that the
rotor doesn't move side to side or the distributor is full of oil.
Since to fix that is most often a new distributor and new distributors
come with a new camshaft position sensor.

> Jeepster wrote:
>>
>> hey man i got codes
>>
>> 12 Direct battery input to PCM was disconnected within the last 50
>> Key-on cycles
>> 54 No camshaft signal detected during engine cranking.
>> 55 Completion of fault code display on Check Engine lamp.
>>
>> Do you think that the cam shaft sensor could be the problem being as
>> it is not detected during cranking.

Not a difficult part to replace but you do have to do some minor surgury.

http://www.revbeergoggles.com/camshaftps/
Never did finish a webpage, but the idea and pictures are there
for doing the 93ZJ 4.0.

Removal and reinstall is the same as a new distributor.
http://revbeergoggles.com/distributor/

--
DougW