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Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0420
P CODES (POWERTRAIN) P0400 - P0499 P0420
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1997 Chevy Monte Carlo Engine Code PO420
Check Engine Light Is On Engine Code Po420 Catalyst System Efficiency Below Threshold ( Bank 1) What Does This Mean?
Asked by
drz400s
·
1 ANSWER
1997
CHEVROLET MONTE CARLO
2002 Toyota Camry Po420
Hi My Name Is Henry. Ok Ive Changed The Cat Converter About 2 Years Ago Bought Brand New From Dealer. About 60,000 Miles On Cat. And The...
Asked by
the giant
·
1 ANSWER
2002
TOYOTA CAMRY
PO420
I Have A 2003 Matrix That Is Showing The Check Engine Light; Code Check By Dealer [po420] Specifically Points To The Catalytic Converter [$...
Asked by
allen12
·
1 ANSWER
2003
TOYOTA MATRIX
1997 Chevy Cavalier Engine Code PO420
Computer Problem 1997 Chevy Cavalier 4 Cyl Front Wheel Drive Manual Read The Codes On The Car Shows Code Po420 I Have Checked The Egr...
Asked by
John Levitt
·
1 ANSWER
1997
CHEVROLET CAVALIER
1998 Honda Civic P0420 Code
My Car Is Running A P0420 Code. My Exhaust Manifold Clearly Has A Crack Between The Manifold Gasket And The 1st O2 Sensor. Is It Possible...
Asked by
ajgary
·
1 ANSWER
1998
HONDA CIVIC
Code P0420?
A Couple Of Days Ago My Check Engine Light Came On. Plugged A Scanner In And Got P0420, But That Was It, No Other Info. Google Says...
Asked by
twebb101
·
3 ANSWERS
2008
HONDA ACCORD
Car Inspection And I Didn't Pass Because Of Code...
I Live In Texas And I Would Like To Know If It's Okay To Replace My Catalyst Converter With An Universal One- I'm Not Sure If It'...
Asked by
krodas
·
1 ANSWER
6 IMAGES
2008
NISSAN SENTRA
Check Engine Code P0420
I Own A 2001 Toyota Sienna Xle Van. The Other Day I Backed My Van Up And I Must Have Backed Into A Snowbank, And I Believe I Got Snow In My...
Asked by
DELOREAN82
·
1 ANSWER
2001
TOYOTA SIENNA
P0420 Code
My Car Started To Shake For About Two Seconds And Then A P0420 Code Came Up. Would A Bad Catalytic Converter Cause This? Thanks
Asked by
David Sutton
·
1 ANSWER
2006
NISSAN MAXIMA
1998 Chevy Tahoe P0420 Code
I Have The Running Problem Resolved. We Had To Put A Brand New Distributor In It. Now It Is Showing A P0420 Code. But I Have Had My Cataylt...
Asked by
huppbear
·
1 ANSWER
1998
CHEVROLET TAHOE
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