How to stop running too rich
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Joined: Jun 2011
Posts: 2,858
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From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by '89_Cherokee
Thread was bold, I was excited to see a new reply, hoping for some answers, but then it was just a crappy pun. 

Last edited by Slick761; Jul 20, 2011 at 11:38 PM.
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Joined: Jan 2011
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From: Beaufort, South Carolina
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.0L
Should this sensor have a vacuum line attached? Because I attached the one that you see and the smoking is no more. Idles better, runs better overall and doesnt smoke even when I punched it.
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Joined: Jan 2011
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From: Beaufort, South Carolina
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.0L
Originally Posted by 94JeepCherokeeMan
I believe that's the evaporation canister... Correct me if I'm wrong.
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From: Southern Idaho
Year: 1994
Model: Cherokee
Engine: 4.0 L/242 CID I-6 High Output MFI
I'm guessing the one that's loose goes to the vaccum fitting on your intake manifold. It connects to the lower port of the vacuum fitting that is the farthest forward on the intake manifold. This port is forward of the throttle body. There is another line coming from the evap can that goes to the airbox, too, but that may be different on RENIX.
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Joined: Jun 2011
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From: Rocky Mountain House, Alberta, Canada
Year: 1988 & 1990
Model: Cherokee
Engine: Inline 6
Originally Posted by '89_Cherokee
what is this black canister in the back? I have a big line coming from it thats just loose
CF Veteran
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
Originally Posted by '89_Cherokee
Should this sensor have a vacuum line attached? Because I attached the one that you see and the smoking is no more. Idles better, runs better overall and doesnt smoke even when I punched it.
Thread Starter
Member
Joined: Jan 2011
Posts: 102
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From: Beaufort, South Carolina
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.0L
CF Veteran
Joined: Jun 2011
Posts: 2,858
Likes: 1
From: Nor-Cal
Year: 1990
Model: Cherokee
Engine: The venerable 4.0
I believe so. It's not in front of me.. one comes from manifold other goes to egr.... the little black plastic valve attached to the egr. I'll try and snap some pics in an hour or so.
Last edited by Slick761; Jul 21, 2011 at 12:37 PM.
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