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Author Topic: rescuing an old friend  (Read 101715 times)

rejeep

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Re: How to throw Money at a YJ...
« Reply #300 on: July 22, 2013, 09:04:02 AM »
got a NEW STANDARD unit coming this morning..
can get another, but won’t be till the night truck..

unbelievable... not dealer or even our stores carries a NEW GM unit..
I guess 88-95 is obsolete in the auto parts world..  If I was doing inventory I would disagree and have at least 1 set in the Main DC

TB gasket easy.. can get as many of those as needed..
TB rebuild kit.. just as difficult as the injectors..

can always go Amazon prime..
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

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Re: How to throw Money at a YJ...
« Reply #301 on: July 22, 2013, 09:06:21 AM »
glad were sorting out the FI gremlins after all...

cant believe things like this just happen on a moment’s notice... truck was running awesome for the past few weeks since tube up.. and I logged several hundred miles..
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

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Re: How to throw Money at a YJ...
« Reply #302 on: July 22, 2013, 10:20:39 AM »
this weekend, mechanical wise the list got knocked out pretty good. 

6 new cross member nutserts welded in, replaced G8 hardware
exhaust rerouted between pan and inspection cover to help tummy height
o2 bung welded up
crossmember clearanced for CAT (still pretty tight)
Mid exhaust hanger to trans mount added
front oil pan skid fabbed and installed
A pillers tied to frame with plate/tube/rubber isolation
TBI spacer installed and sealed up vac leaks
added a light throttle return spring. 


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rejeep

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Re: How to throw Money at a YJ...
« Reply #303 on: July 22, 2013, 10:26:56 AM »
would have taken me 3 months @ 45 min intervals sporadically through the week
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

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Re: How to throw Money at a YJ...
« Reply #304 on: July 22, 2013, 10:35:29 AM »
got a couple of new healthy TBI gaskets as well...
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

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Re: How to throw Money at a YJ...
« Reply #305 on: July 22, 2013, 10:39:39 AM »
will the new injectors come with new orings?  3 of yours were torn, i used the ones from the POD i had, but it would be nice to put new ones in.  not leaking now, but new is nice. 
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rejeep

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Re: How to throw Money at a YJ...
« Reply #306 on: July 22, 2013, 10:40:16 AM »
should.. Ill check
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

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Re: How to throw Money at a YJ...
« Reply #307 on: July 22, 2013, 01:27:52 PM »
injectors on way down to south...
1 new standard
1 reman

couldnt pull another "new" one by noon...
if you think it makes a difference to replace both I can get..
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

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Re: How to throw Money at a YJ...
« Reply #308 on: July 22, 2013, 01:48:57 PM »
Motor specs...

Block and Head milled each .015
Bored 30 over
Isky 262 HYD Supercam

(I can get full cam specs if needed)
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

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Re: How to throw Money at a YJ...
« Reply #309 on: July 23, 2013, 09:12:53 AM »
(1) realized .188" i lifted the TBI with spacer to fix vac leaks caused your mechanical linkage contraption to bottom out ever so slightly and peg the IACV trying to get below where it was stuck at 900-1100rpm idle.  adjustments and fixed

(2) 350 injectors removed, new 4.3 injectors / gaskets installed- spray is good- all is good.

(3) from cold start, laptop through ALDL shows it could not go into closed loop with current 160 stat, and settings on efan controller.  we tweaked up the efan controler so it kicks on and off when the motor is 185-190.  (temp the ECM sees, not the gage on your dash) 

(4) all sensor feed backs look clean- other than O2.  should be .75ish volts steady at 14.6:1   O2 reading noise from 0v t .4v entire time.  unplug goes to 0.4V.  Good ground to sensor, wire harness appears ok.  0.4volts measured on ECM pin between ground.  need to check if that is typical.  Suspect bad O2 even though it looks brand new.
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rejeep

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Re: How to throw Money at a YJ...
« Reply #310 on: July 23, 2013, 12:46:06 PM »
new o2 on way down...

im betting same..  i dont nderstand everything you said... but i think ive been here before...
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

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Re: How to throw Money at a YJ...
« Reply #311 on: July 23, 2013, 01:00:54 PM »
just out of curiosity.. did you reset the CPU?   I thought that needed to be done to wipe the codes and or memory…


again.. Im and Carb and points guy...
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I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

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Re: How to throw Money at a YJ...
« Reply #312 on: July 23, 2013, 01:07:08 PM »
poor fueling leaky injectors not good for any system -fixed

HUGE vac leaks and unmetered air not good for any system- fixed



ECM has no feed back from 02 not good for any system in closed loop.


Hope we dont have a computer or harness issue, but regardless ECM needs 02 feed back



TBI's dont really matter with "codes" they are more like indicators.  Reading real time with the lap top makes the problem obvious. 
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M4wdFab

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Re: How to throw Money at a YJ...
« Reply #313 on: July 23, 2013, 01:09:26 PM »
Once we get all the sensors functioning in the system- we can road test or even have you take it back for a little bit to get a feel.  If its still no good in performance id like to get Mike Universal out here to start messing with timing and fuel maps- no sense in that until the system is happy. 
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M4wdFab

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Re: How to throw Money at a YJ...
« Reply #314 on: July 23, 2013, 01:10:35 PM »
and i really like to get the coolaid smelling fuel out of this thing to start with a base line on pump gas
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