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Wifes 93ZJ won't start

Ok quick question(s). Tonight the wifes ZJ would not start for her,
it cranks over great but no start.
The fuel pump goes wirrrrrrrrrrr when the key is turned as it should.
Battery voltage seems ok (12.04v with everything off).

Unfortunately I didn't have my Haynes (a co-worker borrowed it for the
weekend) with me so I don't know what the codes equal.
If I read them right they are
44 and 11
if i read them wrong then they code be 55 or 22 and 41

Had CAA tow the J**P over to my mechanic so he can look at it on
Monday..

Any ideas on the codes and do they make sense for the thing cranking
over like crazy and not firing up/

Thanks
Snow...

Re: Wifes 93ZJ won't start

Code 11
Description: Engine not cranked since last reset or no ignition reference
signal detected during cranking
Power loss light: Off
Limp-in mode: None

Code 44
Possible Causes
Bad connection or wiring - Check the wiring and connections between the SMEC
and the ignition key. Be sure to check the fusible links by the battery.
Locate the J2 wiring splice in your vehicle by using the splice locations in
the front of the wiring diagrams manual. Make sure there is power to the
module from the splice with the ignition on. Clean and regrease any
corroded connectors with dielectric grease and repair any shorts.
Blown internal fuse - Replace SMEC.

Diagnostic Method
Trigger Parameters
- 12V on the J2 input was not detected during startup diagnostics
Results If Component Fails
Fault code 44 is stored.

Code 22
Description: Coolant temperature sensor signal out of range
Power loss light: On
Limp-in mode: Radiator fan is turned on and the charge temperature sensor
as an indication of the coolant temperature

Possible Causes
Coolant temperature sensor failure - The sensor should measure 9,120 ohms to
10,880 ohms at 77^F. On 2.2L and 2.5L engines, this sensor is located on
the right-hand side of the water box.
Bad connection or wiring - Check the wiring and connections between the
sensor and the logic module (or SMEC). Clean and regrease any corroded
connectors with dielectric grease. You may have disconnected the sensor if
you recently set the base ignition timing.

Diagnostic Method
Trigger Parameters
- Sensor output less than 0.51V or greater than 4.96V
Results If Component Fails
Fault code 22 is stored, the power loss light is turned on, and the logic
module will enter limp-in mode and turn on the radiator fan. All models
except 1988 and later Turbo I engines will use the charge temperature sensor
as an indication of the coolant temperature.

Code 41
Description: Alternator field control circuit open or shorted
Power loss light: Off
Limp-in mode: None

Possible Causes
Bad connection or wiring - Check the wiring and connections between the
logic module and the power module. Clean and regrease any corroded
connectors with dielectric grease and repair any shorts.
Bad voltage regulator circuit - See Diagnosing Your Charging System

Diagnostic Method
Trigger Parameters
- Near 0V or near 12V not detected when the field coil driver is turned on
or off, respectively
Results If Component Fails
Fault code 41 is stored. If the condition persists, it will eventually
result in a fault code 46 or 47.

Code 55
Description: End of message
Power loss light: Off
Limp-in mode: None

"Snow" <snowbal@sympatico.ca> wrote in message
news:1158366017.133189.10540@i42g2000cwa.googlegro ups.com...
> Ok quick question(s). Tonight the wifes ZJ would not start for her,
> it cranks over great but no start.
> The fuel pump goes wirrrrrrrrrrr when the key is turned as it should.
> Battery voltage seems ok (12.04v with everything off).
>
> Unfortunately I didn't have my Haynes (a co-worker borrowed it for the
> weekend) with me so I don't know what the codes equal.
> If I read them right they are
> 44 and 11
> if i read them wrong then they code be 55 or 22 and 41
>
> Had CAA tow the J**P over to my mechanic so he can look at it on
> Monday..
>
> Any ideas on the codes and do they make sense for the thing cranking
> over like crazy and not firing up/
>
> Thanks
> Snow...
>

Re: Wifes 93ZJ won't start

Ninety nine percent of the no starts are the Crankshaft Position
Sensor, unplug it and make another connection usually lets it start a
couple more times:
http://www.off-road.com/jeep/cheroke...tdcsensor.html
Location:
http://members.cox.net/wilsond/Fixes...tml#CPSdetails
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/

Snow wrote:
>
> Ok quick question(s). Tonight the wifes ZJ would not start for her,
> it cranks over great but no start.
> The fuel pump goes wirrrrrrrrrrr when the key is turned as it should.
> Battery voltage seems ok (12.04v with everything off).
>
> Unfortunately I didn't have my Haynes (a co-worker borrowed it for the
> weekend) with me so I don't know what the codes equal.
> If I read them right they are
> 44 and 11
> if i read them wrong then they code be 55 or 22 and 41
>
> Had CAA tow the J**P over to my mechanic so he can look at it on
> Monday..
>
> Any ideas on the codes and do they make sense for the thing cranking
> over like crazy and not firing up/
>
> Thanks
> Snow...

Re: Wifes 93ZJ won't start

UPDATE on : Wifes 93ZJ won't start

Ok heres an update.. Seems the problem was with the fuel pump madule
after all. $400 in parts and its all better. Wifey is happy again as
she's mobile once again. However I*'m currently stuck at home as
Sunday the $%^& brake lines on my 89 caprice waggy decided to start
leaking.. Oh the joy and fun of cars.....

Snow...

UPDATE on : Wifes 93ZJ won't start