Question about 2004 Jeep Liberty

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06 pt cruiser

Po 138 (bank 1 sensor 2)

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O2 sensor heating malfuntion. replacing thje O2 sensor.(oxygen sensor) it is located on the exhaust manifold pipe.

Posted on Nov 21, 2008

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I have a PT 2010 & the diagnostic codes are PO340, PO344 and PO325. mechanic is suggesting replacing the cam shaft post sensor & didn't even mention the knock sensor. Am I dealing with 1 or 2 issues


you are dealing with 2 issues
code p 0325 refers to knock sensor (KS) 1 bank 1--circuit malfunction ====causes ---wiring ---poor connection ---KS
code p 0340 refers to camshaft position sensor(CMP) sensor A bank 1--circuit malfunction===causes wiring--- CMP sensor ---ECM
code p 0344 refers to CMP sensor A bank 1 --circuit intermittent===causes --wiring --poor connection---CMP sensor --ECM
check wiring and connections before replacing the CMP as the wiring may be the cause of all the codes

Oct 21, 2016 | 2010 Chrysler PT Cruiser

1 Answer

Code number for o2 sensor voltage low


Forget to write it down?

Generic or Manufacturer?

There are 41 Generic O2 Codes

PO 131--bank 1 sensor 1
PO 137--bank1 sensor 2
PO 143--bank1 sensor 3
PO 151--bank2 sensor 1
PO 157--bank1 sensor2
PO 163--bank2 sensor 3

Nov 23, 2012 | 2009 Toyota RAV4

2 Answers

P0138 and p0158


These codes, po 138 bank 1 sensor 2 shorted to voltage and code po158 means bank 2 sensor two shorted to voltage. these are the two rear oxygen sensors in the exhaust system. there two up frt and two in the rear, check the wiring on the two rear sensors, make sure that the wiring is not cut or stuck between metal. if the wiring is good then replace both rear sensors, when you get them ask for the left and right after the cat sensors. or bk1 s2 and bk2s2. after replacing them reset the computer. go to an auto parts sotre or if you have a code reader you can do it. hope this helps good day.

Feb 19, 2012 | 2004 Dodge Stratus

1 Answer

Whats the position of the crankshaft position sensor on 2005 pt cruiser non turbo


P0344 CHRYSLER - Camshaft Position Sensor Intermittent Interruption Bank 1 Sensor 1
Possible causes - Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty Camshaft Position Sensor
- Faulty starter motor
- Starting system circuit

Dec 14, 2011 | 2005 Chrysler PT Cruiser

1 Answer

I just had the following done to my car: * New Transmission Solenoid pack * New Bank 1 Sensor 2 Oxygen * New Battery Cable Service * New Transmission Service * New Radiator Cap My engine light...


Sounds like they diagnosed the problem tell them to look into the input / output speed sensors on the front of the transmission this should fix your problem please rate

Aug 01, 2011 | 2006 Chrysler PT Cruiser

2 Answers

Error codes po 134 po 153 po 154 po 155 po 171 po 174


PO 134 = 02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SENSOR1)
PO 153 =02 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
PO 154 =02 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 2 SENSOR 1)
PO 155= 02 SENSOR HEATER CIRCUIT MALFUNCTION (BANK 2 SENSOR 1)
PO 171= SYSTEM TOO LEAN (BANK 1)
PO 174= SYSTEM TOO LEAN (BANK 2)
I WOULD SAY YOU HAVE FAULTY OXYGEN SENSORS CAUSING THE ENGINE TO RUN TOO LEAN REPLACE THEM AND YOU SHOULD BE BACK IN BUISNESS

Feb 23, 2011 | 2004 Suzuki Grand Vitara

1 Answer

Where is Bank 1 sensor 1 located on a 2001 Yukon Denali. I can only find one located on drivers side after cat.( I had the code read it was a po 138 hearter sensor malfun. bank 1 sensor 1) I have been told...


Start at the exhaust manifold flange on the drivers side. The first sensor you come to before the cat. converter is the sensor you are looking for.

Oct 10, 2009 | 2001 GMC Yukon Denali

1 Answer

CHECK ENGINE CODE P0171


there is only one bank on a pt cruiser and yes it could be a fuel pump or a vacuum leak

Aug 06, 2009 | 2004 Chrysler PT Cruiser

2 Answers

Dose anyone no wat thease codes codes meen as my car wont start but turning the key on an of a few times it brings up thease codes p1130 and p1685


P1130 - HO2S Circuit Low Variance Bank 1 Sensor 1

P1685 - Skim Invalid Key - The engine controller has received an invalid key from the SKIM.

CLICK HERE for a full list of OBD Codes for the PT Cruiser.

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Mar 05, 2009 | 2004 Chrysler PT Cruiser

1 Answer

PO137, PO 138 codes


well on my car these are reffering to the sensors in the exhaust, the upstream sensor(before the cat) and the downstream sensor(after the cat) the downstream sensor can act up if it is lazy or sluggish, or due to a bad catalytic converter or a clogged one. however there are sensors on the exhaust manifold which are determined by driver side or passenger,my opinion is to get a scanner for about $100 to $150 and you can figure out many of these codes yourself.

Jun 28, 2008 | 2004 Jeep Liberty

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