Codes P0158 and P2096

2007 DODGE MAGNUM

150,000 MILES • 3.5L • 6 CYL • 2WD • AUTOMATIC

UNISYS1

MEMBER
4 POSTS
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I replaced Bank1 and bank 2 o2 sensors aft of converter. When I checked system with my scanner the first time code 0158 came up again. Checked all vacuum lines and wiring I could not find any defects. Replaced gas cap and air filter. Checked scanner again now I have 2 codes P0158 bank 2 sensor 2 and P2096 fuel system too lean bank 1. Any help would be appreciated.

Mar 20, 2021 at 2:57 PM

JACOBANDNICKOLAS

CERTIFIED EXPERT
110,175 POSTS

Hi,

Since you are getting lean mixtures, chances are either you have a vacuum leak (which you have checked), low fuel pressure, or even an exhaust leak before the catalytic converter.

First, here is a link explaining how to locate a vacuum leak:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Next, here is a link that shows in general how to check fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Here are the manufacturer's specs for fuel pressure:

2007 Dodge Magnum V6-3.5L VIN V
Fuel System Pressure

FUEL SYSTEM PRESSURE

400 kpa ± 34 kpa (58 psi ± 5 psi)

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Let me know what you find or if you have other questions.

Take care,
Joe

Mar 21, 2021 at 7:42 PM