totally stumped on this one
10-01-2012 | 06:47 PM
#47
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I wonder if the ECU is seeing something different.
Wanna try this?
Cruiser’s Renix ECU Connector Refreshing
Many times when other fixes have failed, it becomes necessary to eliminate the ECU to harness connections as a cause. This requires removing the ECU.
Up under the dash, to the right of the steering column is the ECU. It is held in by three 10mm headed bolts to a bracket. It’s most easily removed using a ratcheting wrench but a socket will work.
Once you get the ECU down, unplug the two harness connectors from it. Visually inspect the connectors and pins.
Using a good quality electronics cleaner, liberally spray both of the harness ends and the ECU pin area.
Now, take a small pick or a dental tool and go to the harness connectors. Using the tool, tweak each female receptacle in the harness plugs so they will grasp the ECU pins more tightly.
Plug the harnesses back on to the ECU and reinstall it. I usually only use two of the bolts because the third is a bear.
Revised 07/11/12
Wanna try this?
Cruiser’s Renix ECU Connector Refreshing
Many times when other fixes have failed, it becomes necessary to eliminate the ECU to harness connections as a cause. This requires removing the ECU.
Up under the dash, to the right of the steering column is the ECU. It is held in by three 10mm headed bolts to a bracket. It’s most easily removed using a ratcheting wrench but a socket will work.
Once you get the ECU down, unplug the two harness connectors from it. Visually inspect the connectors and pins.
Using a good quality electronics cleaner, liberally spray both of the harness ends and the ECU pin area.
Now, take a small pick or a dental tool and go to the harness connectors. Using the tool, tweak each female receptacle in the harness plugs so they will grasp the ECU pins more tightly.
Plug the harnesses back on to the ECU and reinstall it. I usually only use two of the bolts because the third is a bear.
Revised 07/11/12
10-01-2012 | 11:21 PM
#49
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,565
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
10-02-2012 | 06:06 PM
#51
Thread Starter
Member
Joined: Mar 2012
Posts: 129
Likes: 0
From: washington
Year: 1990
Model: Cherokee
Engine: straight 6 4.0
well you were right....even with the right tools that thing is not easy to take out haha but i got it out and did what you said and it did not change anything.
10-02-2012 | 08:29 PM
#58
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
just throwing this out there is there a lot of side to side play in dist shaft ,i worked on a chevy box van once with same issue was brought to me after hours of trouble shooting i had a spare dist laying around swaped all internals stuck it in and it cured it ...not saying run out and buy a new dist but its some thing to check.
10-02-2012 | 08:35 PM
#59
Thread Starter
Member
Joined: Mar 2012
Posts: 129
Likes: 0
From: washington
Year: 1990
Model: Cherokee
Engine: straight 6 4.0
thats a good thought... i went out and wiggled the distributor around and it doesnt move at all. i think thats how you check it right? correct me if im wrong so i can make sure that thats not it