Chevrolet Astro P Codes (Powertrain) P0400 - P0499 P0420

Browse Chevrolet Astro P Codes (Powertrain) P0400 - P0499 P0420 questions and answers. Choose a question that matches your symptoms.

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1999 Chevy Astro Code Po420 Meaning

1999 CHEVROLET ASTRO

Took Car To Autozone And Got This Code, Definition Is Catalyst Efficiency Low Bank 1. What Does It Mean And How Can I Fix It To Pass...

1 ANSWER

Asked by shyannrose

1998 CHEVROLET ASTRO

Caty. Conv.efficiency Low Bank One. The Converter Has Been Replaced And The Code Later Appeared Again. The Oxygen Sensor Was Then Replaced...

2 ANSWERS

Asked by David Sipila

1997 CHEVROLET ASTRO

Odb2 Reader Comes Up With P0420, Would Be Looking For Where Bank 1 Would Be On This Make Of.

1 ANSWER

Asked by hellskight2510

1996 CHEVROLET ASTRO

After I Replace My Spark Plugs With Champion Platinums 7940 And Spark Plug Wirers... I Had An Issue With Bad Wire On Number 5 Cylinder...

1 ANSWER

Asked by jcesp

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