Sep 21, 2015, 03:49 PM
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XJ Ask the Question Thread
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Ugh... I actually meant to say substitute, but that works too.
Since OEM is Bosch, I'm going to say no. Go with the Bosch, you'll not be disappointed.
Since OEM is Bosch, I'm going to say no. Go with the Bosch, you'll not be disappointed.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
So I've been racking my brain on why my fuel trims are now negative, new injectors, did a fuel pressure test the other day, was poking around my ODB2 scanner and forgot it does the mode 6 tests, I'm failing TID:11 CID:01 for the upstream O2 sensor, no CEL but I did run it with the MAP sensor, and leaky injector problem for a while. Would that be enough to gunk up the new(as of last year) O2 sensor? Failing with a value of 19, where the Min is supposed to be 48<-whatever that means... Is this enough info to say go ahead and replace it or is there a way to clean it?
Edit: and NGK/NTK is the brand: http://a.co/iERXTeQ
Edit: and NGK/NTK is the brand: http://a.co/iERXTeQ
Are you able to capture a graph of what the O2 sensor is doing? If you had a leaky injector for a while, a fouled sensor I would think report rich incorrectly since not much oxygen can hit it, but I can't confirm that.
CF Veteran
Joined: Aug 2015
Posts: 1,226
Likes: 11
From: Laurium, MI
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Not entirely sure what the 'value' is, is it an abstracted voltage?
Are you able to capture a graph of what the O2 sensor is doing? If you had a leaky injector for a while, a fouled sensor I would think report rich incorrectly since not much oxygen can hit it, but I can't confirm that.
Are you able to capture a graph of what the O2 sensor is doing? If you had a leaky injector for a while, a fouled sensor I would think report rich incorrectly since not much oxygen can hit it, but I can't confirm that.
CF Veteran
Joined: Oct 2015
Posts: 7,517
Likes: 1,626
Year: 2000
Model: Cherokee (XJ)
Thanks. Having the longer to start when it sits problem. When running fuel pressure is right on spec. Pretty sure no leaking fuel injectors or lines. So thinking the check valve thing on top of the pump. You can buy the check valve but doing all the work just to replace that seems stupid. Figure just replace the whole assembly. The Mopar pumps go for about $330 online. While I have no intention of doing the repair anytime soon figure some day I might. If it would have been a good idea to use the Mopar instead of the Bosch one I would have grabbed it for when I decided to do it. Just when till if and when and then buy the Bosch one.
Junior Member
Joined: Mar 2017
Posts: 72
Likes: 0
From: Bakersfield, CA
Model: Cherokee
Engine: 2.5l
No, I don't lick fish.
Joined: Mar 2011
Posts: 11,169
Likes: 26
From: Northern Kentucky
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0
Thanks. Having the longer to start when it sits problem. When running fuel pressure is right on spec. Pretty sure no leaking fuel injectors or lines. So thinking the check valve thing on top of the pump. You can buy the check valve but doing all the work just to replace that seems stupid. Figure just replace the whole assembly. The Mopar pumps go for about $330 online. While I have no intention of doing the repair anytime soon figure some day I might. If it would have been a good idea to use the Mopar instead of the Bosch one I would have grabbed it for when I decided to do it. Just when till if and when and then buy the Bosch one.
https://www.cherokeeforum.com/payments.php
CF Veteran
Joined: May 2015
Posts: 1,472
Likes: 5
From: San Antonio, TX
Year: 1992
Model: Cherokee
Engine: 4.0L H.O.
Herp Derp Jerp
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
CF Veteran
Joined: Oct 2015
Posts: 7,517
Likes: 1,626
Year: 2000
Model: Cherokee (XJ)
Seasoned Member
Joined: Oct 2012
Posts: 328
Likes: 5
From: Dominican Republic
Year: 1990
Model: Cherokee
Engine: inline 6
Yeah, it's a pain I know. For now, just do the "poor man's prime" by cycling the key twice before you try to start it. That'll get fuel further up the line and just about into the fuel rail to decrease your starter time.
Gotta become a paid member, bud. We'd love to have ya...
https://www.cherokeeforum.com/payments.php
Gotta become a paid member, bud. We'd love to have ya...
https://www.cherokeeforum.com/payments.php
Ain't that a pretty blue??
Senior Member
Joined: Jan 2017
Posts: 539
Likes: 2
From: Central KS
Year: 1996
Model: Cherokee
Engine: 4.0
Gotta become a paid member, bud. We'd love to have ya...
https://www.cherokeeforum.com/payments.php[/QUOTE]
Are they still doing the decals?? I paid almost a couple months ago... haven't seen anything. jw
https://www.cherokeeforum.com/payments.php[/QUOTE]
Are they still doing the decals?? I paid almost a couple months ago... haven't seen anything. jw
CF Veteran
Joined: Oct 2016
Posts: 1,535
Likes: 10
From: CA
Year: 1994
Model: Cherokee (XJ)
