Jeep Cherokee XJ 97 Crank no start sometimes it sputters

[rainman]

so do the injectors fire when you crank or not?

[Jimmyb]

http://www.ausjeepoffroad.com/forum/...php?pageid=FSM

Conviently loaded onto Ausjeep

[LuluBelle]

"What do you believe? Under the hood I have 3 rivoted plates there, 1 with vin# and the year it was made I guess Says "97" Directly above that is a Plate says
"Built 96" and the 3rd Paint codes. So of the 3 which is it 97 or 96? What do you reckon? "
Lenny .... what do your sensor plugs look like?
are they oval looking with round pins inside? = 96
rectangular with flat pins inside = 97
if your check engine light don't stay on long enough to get the codes you might have a PCM issue (computer)
I did one in mine a while back and they are hard to diagnose
Mine being a 96 I had to get a matching number PCM it was about $80 from a wrecker easy to swap
when my PCM shit it self the check engine light flickered or wouldn't come on crank no start but also no fuel pump or spark but who knows if they all fail the same?
_____ooooo
/__l_l_,\____\,___
l_---l_l__l---[ ]llllll[ ]
_.(o)_)__(o)_)--o-)_)

[awg]

Originally Posted by alexbrown64

Have you OBD2 guys found a good Elm327 code reader that works on the port.
With my OBD1, i just use the key trick, but i did watch a youtube vid for OBD2 that used the same trick, but the codes came up on the dash, (unlike the the OBD1 where you have to decipher the flashes).

Cheers,

for a '96 onwards, this will work BAFX $39

https://obd2australia.com.au/product...iABEgJu3vD_BwE

some of the '96 had an early version of obd2, but this is guarenteed to read them, did take me ages to make it connect with my old Android phone via bluetooth and the free Torque APP, ( I watched a fault finding Youtube eventually) but it does the job, and is plugged in all the time, gives some live data too.

If you have an OBD2 older Jeep..or any vehicle really, you NEED one of these, pays for itself on the 1st use

at the OP...Google and download that manual Alex found..Google search
" free download Jeep Cherokee XJ powertrain diagnostics manual"

Even though it is for a '95, the Ignition system is the same

The way the layout of the manual is formatted, you can tell it is the training manual for technicians

[Lenny6]

Well I know now that the ecu is working like it should, just spent a day and a half checking every input and output and they are all showing what they should be so I have to check the wiring now. Thinking of just going out and buying a new or used loom see if that's the problem. Don't have the gear to track shorts and I can't see any worn bits on the loom to say yeah I'll cut that piece open and check for a worn or burnt wire(that's all it can be except for ignition switch). I hate to think that I may have to buy a skim don't think I can, don't even think you can get them reco and get the ecu re-flashed. Besides $800 is a bit to much for me to splash out at the moment for a car that's probably worth 2-3 grand..

Lenny

[Lenny6]

Originally Posted by rainman

the earlist is the build date, the later the australian compliance plate date.

So it's a 96 build. Hey?

Lenny

[Lenny6]

Originally Posted by Jonny Jeep

Look at the tenth digit of your VIN to find out your model year.

T=1996, V=1997.

Thanks Jonny Jeep, I guess mine is 96 build, Evary one that bought a jeep in 97 was paying for a jeep built in 96. Us Aussies have got to be suckers for these yanks!! Just saying...

Lenny6