CPS Sensor

[daking]

So, I'm building an 87 Comanche. I'm using a 91 HO Cherokee for the engine, transmission, T-case, electrical, dash and so on.

 

Started a awhile back.

 

So, I bought a new CPS sensor. Started installing it. And I'll tell you what, I have quite a few choice words for the guy that decided that location was a good place. I hope he suffers an eternity of having to replace these. On a clean truck, not bad, but on a well driven one...

 

I spent hours trying to get it installed. The dang bolts won't thread in the holes, with sensor. But, sure as hell, I can hand thread with out the sensor.  put the sensor back, and put the bolts in, turn for F-N hours, and never grab a thread. 

 

Well finally get dat b!tch up, and start to connect it. I can't find the matching connector on the harness! W.T.F!!!

 

I've read there may have been a service bulletin to relocate connector to inside the cab. Take dash apart, and I can't locate a matching connector.

 

I have 3 other XJ / MJ's to compare.

 

2000 XJ, CPS looks like it connects to harness with the transmission on passenger side.  My 91/87 MJ no have that...

1990 MJ, CPS is connected to a GM style connector off the injector harness. My 91/87 MJ no have that same style plug..

 

Now, there is an un used round 3 pin connector on the injector harness. I always figured it was for a different TB. 

 

 

So, I goto Autozone, and have them show me a CPS from a 91... Damn it!, looks like it uses a round connector. 

 

So, I just spent some time in CPS HELL, and installed the wrong damn sensor... Now, I got to remove that sensor, buy correct one, and pray I can install in less then 8hr... 

 

before all this started, I went to a u pull it salvage yard, and pulled a CPS. It only took me 10min to remove it. I wanted to bolts, cause I did not know the size needed, I figured if I was going through the pain of installing a CPS, I may as well start with correct bolts. The F N issue is I could not get the bolts to bite as I turned the wrench. I used paper to make sure the bolt was not sliding down into the socket...

 

 

Anyway, for thats don't know, there are different plugs on the CPS used. now I know.  

 

I'm debating on just cutting both ends off and putting on GM style weather pack connectors. 

[Rockfrog]

Skip that just re-read.

[gogmorgo]

The Renix and HO CPS are more different than just the connectors. The Renix also won't read off the HO flexplate, and vice versa. If you've got the engine controls and flexplate from a '91, then you'll need the CPS from a '91. Sucks you went to all that work, though :(