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code p0152 jeep wrangler JKU 2010

2439 Views 7 Replies Latest reply: 2015-02-26 22:33:38

Level 4
(113) points

alijamal83
2015-02-24 16:07:54

hello i diagnosed a JKU 2010 model with 3.8 V6 engine it has been to off road and some mud and water fording to 3/4 of its tire and found the code p0152
i found the exhaust nuts loose at passenger side and tightned them after 2 days the code came back what do you advice

thanks and regards

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Level 6
(475) points

J Gutz

2015-02-24 20:36:04 (Reply to:alijamal83)

P0152 02 sensor 2/1 Circuit High: That code is for driver's side (left) upstream 02 sensor. Check for open circuit or water intrusion at oxygen sensor's connector.

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Level 4
(113) points

alijamal83
2015-02-25 08:55:09 (Reply to:J Gutz)

Thanks but i wonder Does sensor 2 bank 1 means drivers side or passengers side?! It is a 3.8l v6 2010 model
Visually inspection no connection problem what do you advice
Found the voltage are stable and change ratio equal on both banks front and lower stream

Does loose exhaust nut at the manifold do that and why it did not trigger lean condition
Thanks again

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Level 6
(475) points

J Gutz

2015-02-25 09:26:10 (Reply to:alijamal83)

Bank 2 is left side of vehicle ( driver's side for Left hand drive vehicle). Switch both upstream 02 sensors from opposite sides and see if code moves to other bank, if it does replace bad 02 sensor. Loose exhaust is more likely to throw a code for fuel trim instead of a circuit code. Bank 1 is always where #1 cylinder is, bank 2 is opposite. ( H02S 2/1: first digit number of PID is bank side "2", second digit is sensor location, "1" for upstream or 2 downstream)

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Level 4
(113) points

alijamal83
2015-02-25 15:01:32 (Reply to:J Gutz)

thanks bro i have the left hand drive so as you mintioned the 2/1 sensor circuit means the one in front of driver or driver side sensor , i will switch sides to see what happen and report back by the way if the code remain same p0152 what should i do next steps are great help thanks and regards

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Level 4
(113) points

alijamal83
2015-02-25 16:10:26 (Reply to:J Gutz)

here comes a diognises video recorded shows full details i wish you to see it and i will do what you said thanks and regards
here is the video on youtube

https://www.youtube.com/watch?v=legSS9rshVo&feature=youtu.be

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Level 4
(113) points

alijamal83
2015-02-26 16:06:54 (Reply to:J Gutz)

hello after i opened the o2 sensors the driver side was exploded lol thanks i will soon replace it

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Level 6
(475) points

J Gutz

2015-02-26 22:33:38 (Reply to:alijamal83)

I'm glad you found the problem... regards!

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