Need Some Help Asap

[54bobby]

 

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hopefully this will help. I think this is correct, unless its for a MPFI?. After reading this i decided to check my folder filled with my jeep pics and stumbled upon these was planning on using it Someone has screwed my vacuum lines in the past and I need to get to it just havent had the chance

 

 

 

This is the accurate schematic.

 

 

 

Keep it simple, Bobby.

 

 

 

 

 

Two ports on the TB.

Lower goes to the VC, which is supposed to be at the rear of the VC.

Upper goes to the MAP.

 

Port on intake manifold goes to EGR solenoid and is there T'd off to the canister at the bumper.

The second line off this port goes to the air cleaner plenum, from there to the air box (I believe, as my air box is gone).

 

 

 

If your idles poorly..........I would check the EGR........the next thing I would suspect is the MAP........when map is unplugged or bad it will not idle.

 

this schematic still looks wrong for the 87. the vc line towards the front of the truck on mine, routs to the air box and the rear goes to the tb. everything you talked about is done and she is running fine now. these schematics must be for late models. i have yet to see one that has the front vc line running to the air box. and all the charts have pics of pcv valves which as far as i can tell, the 87 renix dosen't use.

[Jeep Driver]

My 88, front or rear..........it does not matter......how ever it is configured.

 

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[BryceOJ]

It maybe for 1990 4 cylinders and later.  It may differ a little but it should provide some slight help for the less obvious things.