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Author Topic: Emissions Fault Codes  (Read 925 times)

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BSM

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Emissions Fault Codes
« on: 06 July 2020, 17:38:08 »
Good afternoon

The emission warning light on my Vauxhall Omega Estate 3.2 Elite is illuminated. The ODB-II fault finder shows codes 042001 & 043001; both are detailed as "Unknown fault code".

Any help gratefully received, please.

Respectfully

Barry
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Doctor Gollum

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Re: Emissions Fault Codes
« Reply #1 on: 06 July 2020, 17:54:05 »
Factory fitted pre cat efficiency codes.

Two solutions:

1. Throw in a can of Wynns fuel treatment or injector cleaner, fill with Shell VPower and drive the car hard for the entire tank. (>240 miles from the tank or you're not trying) and repeat. Light should then go off. Repeat as required.

Or 2. Move the precat sensors behind the main cats.
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BSM

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Re: Emissions Fault Codes
« Reply #2 on: 06 July 2020, 18:13:57 »
Thank you, Doctor, for such a rapid reply. I shall try it.

Respectfully

Barry
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