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Old 01 Jan 2021, 07:24 pm
ptcruisersteve ptcruisersteve is offline
Obsessed Cruiser
 
Join Date: Aug 2014
Location: Thousand Oaks, CA
Posts: 7,600
Default Re: P0133 and P02096 Engine Codes

I would suggest removing the triggered engine codes and see if the same codes come back with an OBDII Scanner tool.

P0133 -O2 (B1 S1) Slow Response
Possible Causes:
1. Exhaust leak present in the exhaust manifold or exhaust pipes
2. O2 element is fuel contaminated
3. O2 element is deteriorated or it has failed


P2096 - Downstream Fuel System 1/2 Lean Conditions:
Possible Causes:

1. Exhaust leak
2. Engine mechanical problem
3. O2 Sensor has failed
4. O2 Sensor signal circuit or return circuit problem
5. Fuel contamination

Your 02 sensor might be triggering P2096.

I would suggest checking for exhaust leaks first then check the wires going to the 02 sensor.

If okay I would check for engine mechanical problems. You might have something causing the 02 sensor to trigger.

Do you have a turbo on your 2005 Pt Cruiser? If so they are known to have cracked exhaust manifolds.
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Last edited by ptcruisersteve; 01 Jan 2021 at 07:37 pm.
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