Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

hard miss

Old Mar 20, 2021 | 04:48 PM
  #31  
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Year: 2000 power train. '99 body
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Originally Posted by Dave51
What exactly did you do when you

Did these problems start after the switch? ALL history please.
5yrs ago I put a '96 cylinder head on it. Everything I have done recently is in the thread.
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Old Mar 20, 2021 | 05:32 PM
  #32  
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From: Connecticut
Year: 2000
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Engine: 4.0
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Originally Posted by Glen Burrows
IAT replaced no joy. Codes gone. Backfires through intake.
Do a compression and/or leak down test.
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Old Mar 20, 2021 | 10:55 PM
  #33  
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Year: 1997 (RHD)
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It's a bit of a mess, trying to clarify here;
So do you, or do you not have any codes now?
The codes you stated can't have resolved by what you did or replaced.

Also: aftermarket CPS?
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Old Mar 29, 2021 | 02:46 PM
  #34  
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Year: 2000 power train. '99 body
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Engine: 4.0
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Originally Posted by Roler
It's a bit of a mess, trying to clarify here;
So do you, or do you not have any codes now?
The codes you stated can't have resolved by what you did or replaced.

Also: aftermarket CPS?
Yes aftermarket. Just cleaned grounds today. No joy
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Old Mar 30, 2021 | 01:14 PM
  #35  
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From: Las Vegas
Year: 2000 power train. '99 body
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Engine: 4.0
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Originally Posted by roler
it's a bit of a mess, trying to clarify here;
so do you, or do you not have any codes now?
The codes you stated can't have resolved by what you did or replaced.

Also: Aftermarket cps?
p1694, p1391, p1899, p1494

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Old Mar 30, 2021 | 01:33 PM
  #36  
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From: Las Vegas
Year: 2000 power train. '99 body
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Engine: 4.0
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Originally Posted by roler
it's a bit of a mess, trying to clarify here;
so do you, or do you not have any codes now?
The codes you stated can't have resolved by what you did or replaced.

Also: Aftermarket cps?
p1694, p1391, p1899, p1494


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Old Apr 5, 2021 | 08:28 AM
  #37  
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Year: 2000 power train. '99 body
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Engine: 4.0
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Have found an O2 sensor connector. Repaired wiring and reconnected O2. No joy.
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