|
|
11-05-2020
|
Full Flexer
|
|
Join Date: Mar 2016
Posts: 1,136 What Jeep do I drive?: XJ
Likes: 109
Liked 640 Times in 436 Posts
|
|
Quote:
Originally Posted by Lenny6
Hi all just posted a quick video to Youtube, to show what my jeep is doing when I turn the key. The lights won't stay on long enough, for me to get codes from the computer..
https://www.youtube.com/watch?v=JBpx7cfG-V8
Any suggestions??
Len
|
while we wait for you to substitute your private porn for a Jeep vid lol
lets get back to basics...you have a older "square shaped" '96 correct ?
do the "gen" and "engine check light" illuminate for 3 secs when you turn key to start ?...the fuel pump should also prime...this should mean your computer (PCM) is working
have you ruled out the ASD relay...car wont go without it
have you determined if there is 5V supply to Cam and crank sensor power wires by backprobing their connectors ?...like scannerdanner
You have indicated as far as I can tell, that you have 49psi fuel pressure, but no spark or injector
I am asking these questions to try and rule out a possible PCM failure
__________________
'96 4.0 Sport 375k+
'96 Limited 263k (unreg spare)
'96 Sport 335k (got smashed, farmtruck)
|
11-05-2020
|
Newbie
|
|
Join Date: Apr 2020
Posts: 46
Likes: 46
Liked 23 Times in 15 Posts
|
|
Quote:
Originally Posted by awg
while we wait for you to substitute your private porn for a Jeep vid lol
lets get back to basics...you have a older "square shaped" '96 correct ?
do the "gen" and "engine check light" illuminate for 3 secs when you turn key to start ?...the fuel pump should also prime...this should mean your computer (PCM) is working
have you ruled out the ASD relay...car wont go without it
have you determined if there is 5V supply to Cam and crank sensor power wires by backprobing their connectors ?...like scannerdanner
You have indicated as far as I can tell, that you have 49psi fuel pressure, but no spark or injector
I am asking these questions to try and rule out a possible PCM failure
|
Back probing 5v to the ground in the same plugs? yeah!!
Lenny
|
11-05-2020
|
Newbie
|
|
Join Date: Apr 2020
Posts: 46
Likes: 46
Liked 23 Times in 15 Posts
|
|
Gen and Engine light come on but just for a split second and yes I have the old square type body 96 XJ..
Back probing 5v to the ground in the same plugs? yeah!! Just backprobed crank sensor got 5.18 cam sensor 5.16 tps 5.17.
Last edited by Lenny6; 11-05-2020 at 05:57 PM.
|
11-05-2020
|
Full Flexer
|
|
Join Date: Mar 2016
Posts: 1,136 What Jeep do I drive?: XJ
Likes: 109
Liked 640 Times in 436 Posts
|
|
Quote:
Originally Posted by Lenny6
Gen and Engine light come on but just for a split second and yes I have the old square type body 96 XJ..
|
I dont think thats good...I think that 3secs is the time that the PCM checks everything is ok, and if not, shuts down the ASD relay.
however you say you have fuel pressure..and 5v supply at the sensors, so that is contradictory for a bad PCM
next question could be does the fuel pump run for 3 secs ?
it is quite audible...preferably get someone else to turn the key...but you can still turn the key yourself, and hear it buzzing near the tank if you are quick
did you download the '97 service manual ?
it gives a detailed explanation of how the ASD relay operates upon power being applied
in addition, check all major earth and power cables and connectors..the main PCM earth is 2 nuts on the engine block near the coil
__________________
'96 4.0 Sport 375k+
'96 Limited 263k (unreg spare)
'96 Sport 335k (got smashed, farmtruck)
|
11-05-2020
|
Newbie
|
|
Join Date: Apr 2020
Posts: 46
Likes: 46
Liked 23 Times in 15 Posts
|
|
Some times it runs for a couple seconds other times it runs much longer. Yeah I did download. Bit worried about using it though as some of the wires are different colors to what is stated..I actually cranked it yesterday and it fired and then just died. Bit worried about buying another PCM. They aren't cheap. My lady is going to kill me if I buy more stuff for this car!!
Don't worry I've been checking to see where I can get one if needed got this from a company in USA:: We have this unit in stock, it comes programmed plug and play, with a lifetime warranty for US$209.99. If you would like to purchase this unit I can either send you a paypal invoice or give you a call.
Shipping to Australia is US$100.
Lenny6
Last edited by Lenny6; 11-05-2020 at 07:11 PM.
Reason: Adding more info
|
11-05-2020
|
|
Rock Munki
|
|
Join Date: Mar 2008
Location: Kellyville NSW
Posts: 2,381 What Jeep do I drive?: XJ
Likes: 178
Liked 351 Times in 223 Posts
|
|
pull the shroud of the stering column and have a look at the ignition switch.
if it looks like this- nasty black on the left- then its fvked.
__________________
Obd1 scanner.
'95 sport,4.6 stroker, 4.5" lift, 32"s, 4:10's, 8.25&SYE, taurus fan
|
11-05-2020
|
|
Rock Munki
|
|
Join Date: Mar 2008
Location: Kellyville NSW
Posts: 2,381 What Jeep do I drive?: XJ
Likes: 178
Liked 351 Times in 223 Posts
|
|
looking at the video i would be testing for IG+ to the computer. Does it come on with the key and stay on?
- anything is possible- I get the impresiion the pCM is trying but somthing is getting in the way- rather than the PCM is fvked.
if you can borrow a scanner see if that will work.
__________________
Obd1 scanner.
'95 sport,4.6 stroker, 4.5" lift, 32"s, 4:10's, 8.25&SYE, taurus fan
|
Thread Tools |
Search this Thread |
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is On
|
|
|
All times are GMT +10. The time now is 01:52 AM.
|
|
|
|
Advertisements
|
|
|
AJOR does not vouch for or warrant the accuracy, completeness
or usefulness of any message, and are not responsible for the contents of any
message. The messages express the views of the author of the message, not necessarily
the views of AJOR or any entity associated with AJOR, nor should any advice
be substituted as technical advice replacing that of a mechanic. You agree,
through your use of this service, that you will not use AJOR to post any material
which is knowingly false and/or defamatory, inaccurate, abusive, vulgar, hateful,
harassing, obscene, profane, sexually oriented, threatening, invasive of a person's
privacy, religious, political or otherwise violative of any law. You agree not to post any copyrighted
material unless the copyright is owned by you or by AJOR. The owner, administrators
and moderators of AJOR reserve the right to delete any message or members for
any or no reason whatsoever. You remain solely responsible for the content of
your messages, and you agree to indemnify and hold harmless AJOR, the administrators,
moderators, and their agents with respect to any claim based upon transmission
of your message(s). The use of profile signatures to intentionally mislead or misdirect any member on this forum is not acceptable and may result in your account being suspended. Any trip that is organised through the AJOR forum is participated
at your own risk. If you or your vehicle is damaged it is your responsibility,
not that of the person that posted the thread, message or topic initiating the
trip, nor the organisers of AJOR or moderators of any specific forum. This forum
and associated website is the property of AJOR. No user data is harvested and no information supplied in your registration will be sold for profit.
|