Renix Mopar Performance Computer P4532129
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5

But give me a minute. Two of three mounts are shot, there is a shot-gun hole in the floor below the cowling leak, my TPS and IAC have never been checked. The left front U-joint is in the console. (I do have over three of the "round kind" of tires now...almost). But YES, I'm all for maximum advance, and have never even heard a ghost of a ping out of it. (I suppose I would listen for a ping with the knock sensor unplugged before I did any mod though).
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Better than just OK, toasted I think! OK I found in ONE operation manual that it resets to "original" ...but I swear I saw somewhere it tries progressive advancing. Maybe a difference between 88 and 89? If so maybe the first time I showed Cruiser something! (don't hold your breath though)
OK...all I found for the 90 is it "returns to it's advance" in 10 seconds...just the same thing said a little differently...
OK...all I found for the 90 is it "returns to it's advance" in 10 seconds...just the same thing said a little differently...
Last edited by DFlintstone; Jan 4, 2013 at 03:42 PM. Reason: resets to "original"
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Here's a high altitude Mopar CPS with the upper mounting hole drilled out from the stock 5/16" to 3/8".
Last edited by cruiser54; Jul 6, 2016 at 02:55 PM.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
PM me your email address and I'll send it to you. Maybe it will upload for you. I've tried over 10 frickin' times.
Last edited by cruiser54; Jan 26, 2013 at 06:33 PM.
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Not available from Mopar any more. Rock Auto shows them and they appear to be from the same supplier as Mopar. It's the Standard Motor Products one.
You missed it because you were working on your transmission conversion.......
PC307. I searched it out for you. $37.
You missed it because you were working on your transmission conversion.......
PC307. I searched it out for you. $37.
Last edited by cruiser54; Jan 27, 2013 at 06:07 AM.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
53005421 comes back as a 2.5 sensor i found that number .


