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Unread 12-03-2009, 09:46 PM   #1
JonM81
Registered User
2004 WJ 
 
Join Date: Jul 2005
Posts: 83
4.0L WJ. P0171 code.

I have a thread in the wj section but I was hoping someone else as had this issue. I have a p0171 lean bank one code. My front three spark plugs (i6) were black with carbon as well as my 2 bank one o2 sensors. I replace them or clean them and it clears the code for a while... Could this be a inector issue? I have cleaned all electrical contacts around the TB and computer. Checked for vacuum leaks. Cleaned the TB and ran seafoam in gas.

Am I missing something?

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Jon
La Vernia, TX
2004 WJ Grand Cherokee Laredo
4.0L Straight Six w/ 140xxx Miles
K&N Drop In w/ Air Box Mod
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Unread 12-07-2009, 10:27 AM   #2
JonM81
Registered User
2004 WJ 
 
Join Date: Jul 2005
Posts: 83
Sorry for the bump... Hoping to fix this soon. I have a TPS to put on... Not sure if its the culprit or a vacuum leak... Or if I have fixed it but my bank one 02 sensors are shot now...
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Jon
La Vernia, TX
2004 WJ Grand Cherokee Laredo
4.0L Straight Six w/ 140xxx Miles
K&N Drop In w/ Air Box Mod
JonM81 is offline   Reply With Quote
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