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87 cherokee 4.0 idle problem

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Old 07-28-2012, 08:02 AM
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I would go with the seasoned tech that worked on renix when they came out. Aka cruiser54.
Old 07-28-2012, 08:04 AM
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Originally Posted by xj34
Well I'm 100 percent sure that when I unplug the connection from it that it don't idle up or nothing just dies
cruiser was correcting what 4xmadman was saying.
Old 07-28-2012, 01:06 PM
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Yea I know lol I was just letting them know it does die
Old 07-28-2012, 03:02 PM
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Originally Posted by xj34
Well I'm 100 percent sure that when I unplug the connection from it that it don't idle up or nothing just dies

I'm 100% sure of that, too. Try unplugging the connector instead and it should die also.
Old 07-29-2012, 09:49 AM
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Either one it dies pretty much the only sensor that don't make a difference when I unplug it is the iac I unplug it and it stays running like crap
Old 07-29-2012, 09:51 AM
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Originally Posted by xj34
Well I'm 100 percent sure that when I unplug the connection from it that it don't idle up or nothing just dies
MAP sensor is working then.

Have you ignored my suggestion on adjusting/testing the TPS?
Old 07-29-2012, 09:55 AM
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Originally Posted by 4xmadman
Yes if you take off the vacuum line but not when you unplug the connector
From XJ 34:


Either one it dies pretty much the only sensor that don't make a difference when I unplug it is the iac I unplug it and it stays running like crap
Old 07-29-2012, 01:44 PM
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So I went out a tried unplugging the hose from the map and it don't die but the connector it does die I unplug the iac the random vacuum hoses the egr valve and solenoid and the vacuum line to the fpr and none of those make a difference
Old 07-29-2012, 04:59 PM
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Originally Posted by xj34
So I went out a tried unplugging the hose from the map and it don't die but the connector it does die I unplug the iac the random vacuum hoses the egr valve and solenoid and the vacuum line to the fpr and none of those make a difference
I thought you said earlier that it died when you unplugged the MAP hose.
Old 07-29-2012, 08:10 PM
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Yea I did I thought when I unplugged it the other day it died but I unplugged the hose today and several others and it stays running and when I unplug the map connector it still dies its about the only one that does die and tomorrow I will try to adjust the tps but the Guy I got it from said he tried adjusting it but it didn't do any good
Old 07-29-2012, 08:14 PM
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It should die when you unplug the vacuum line from the MAP every time.
Old 07-29-2012, 08:15 PM
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VID_20120729_131737.mp4


VID_20120729_131710.mp4
Old 07-29-2012, 08:16 PM
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There is a couple videos of it running
Old 07-29-2012, 08:19 PM
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With the vacuum connector off the MAP, see if there is vacuum there by putting your finger over the end of the hose.
Old 07-30-2012, 01:26 AM
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Yes there is good vacuum coming from it


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