What is thing for? Needing to know if I can remove with my 4.0 head and MPFI setup. - JeepForum.com
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Unread 08-06-2013, 10:38 PM   #1
JeepScrambler
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What is thing for? Needing to know if I can remove with my 4.0 head and MPFI setup.

I am in the process of installing a 4.0 head with the MPFI intake and exhaust on my '85 CJ7. Currently I am weeding through the wiring and thinning it out. This is on the stock '85 CJ engine side harness and was curious as to what this piece is for?




There appears to be some sort of diodes inside but I haven't pulled it apart any further to look:

It comes off of this much larger weather-pack connection:


I will be using the stock CJ style starting and charging system, along with the CJ style A/C. Basically I am needing to know if all this can be removed and still allow me to use these two systems with my 4.0 head and MPFI. Anyone familiar with this part and what function it serves?

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Unread 08-07-2013, 05:19 AM   #2
CJ7VFR
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You don't want to get rid of that. It's the connection to your Flux-Capacitor....
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Unread 08-07-2013, 05:20 AM   #3
John Strenk
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It's a bunch of diodes used to sense it the Intake heater, AC and something else. It's used to activate the solvac solenoid on the BBD to kick up the engine speed at idle.

Not needed if you don't have the OEM computer operating anymore.


Look for Diode Array in this schematic. Lower right. Just above the blue box
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Unread 08-07-2013, 08:12 AM   #4
JeepScrambler
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Location: Claflin, KS / Houston, TX
Posts: 139
Quote:
Originally Posted by CJ7VFR View Post
You don't want to get rid of that. It's the connection to your Flux-Capacitor....
Might as well remove it, I don't the Jeep can do 88 mph anyways!

Quote:
Originally Posted by John Strenk View Post
It's a bunch of diodes used to sense it the Intake heater, AC and something else. It's used to activate the solvac solenoid on the BBD to kick up the engine speed at idle.

Not needed if you don't have the OEM computer operating anymore.


Look for Diode Array in this schematic. Lower right. Just above the blue box
Thank you very much John, that is exactly what I was needing to know! Just wanted to double check and make sure it wasn't necessary for my AC to operate before I take it out. Thanks again for the help!
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1985 CJ8, '85 CJ8, '85 CJ7, '84 CJ7, '84 CJ8, 2-'84 CJ8 AK Postal Scramblers, '82 CJ8, '82 CJ8, '82 CJ8, '53 CJ3A
'02 Dodge Ram 2500 4x4 Cummins HO 6 spd
'05 Wrangler Unlimited Rubicon Sahara Edition (0002 of 1000), 6 spd, hard top, stock, 38K miles
'06 Grand Cherokee "Overland"
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