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Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0420
P CODES (POWERTRAIN) P0400 - P0499 P0420
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Trouble Code Po420
I Have A Po420 Code On My Car And I Don't Know If It’s My O2 Sensor Or My Catalytic Converter Is Bad Or What. I Don’t Have A Bad...
Asked by
AWiles1218
·
4 ANSWERS
6 IMAGES
2011
CHEVROLET CRUZE
VIDEO
How to Read Codes
Instructional repair video
P0420 Please Help!!!
I Just Had My Code Checked And It Said That It Was A P0420 Code And It Had Another P0420 Code With Some Symbols Beside It. How Do I Know If...
Asked by
NURSEHEATHER09
·
24 ANSWERS
2009
CHEVROLET MALIBU
How To Fix A Code P0420
So My Truck Threw A Code P0420. I Replaced The Oxygen Sensor Before The Catalytic Converter, Cleared The Codes And The Same Code Popped Up...
Asked by
Tevinlopez23
·
4 ANSWERS
6 IMAGES
2002
CHEVROLET TRAILBLAZER
Code P0420?
I'm Back, We Talked About This Before. Wagon Shut Off Today Pulling Into A Parking Spot. Started Right Up But Had To Turn It Off And...
Asked by
Willie Hurlocker
·
2 ANSWERS
6 IMAGES
2005
DODGE MAGNUM
VIDEO
How to Read Codes
Instructional repair video
Code Po420
I Have A Live Data Freeze When Code Occurred.
Asked by
Abelraya
·
1 ANSWER
7 IMAGES
2012
CHEVROLET MALIBU
P0420 Code
I Have The Check Engine, Vsc, And Trac Off Lights On My Instrument Panel. When I Have Had It Checked, I Was Told It Was Reading P0420 -...
Asked by
rrbutler1222
·
4 ANSWERS
5 IMAGES
2004
LEXUS RX 330
Code P0420 Keeps Coming Back?
My Vehicle Listed Above Has Had A Ton Of Issues. The Biggest Was Replacement Of The Timing Chain, Now It Burns A Little Oil. The Dealer...
Asked by
Chris Alicia Newkirk
·
3 ANSWERS
5 IMAGES
2011
INFINITI QX56
Code P0420
I Took My Son's Car To O'riellys For A Diagnostic Because The Check Engine Came On And One Of The Codes That Came Up Was P0420. Is...
Asked by
Ckmarti61
·
3 ANSWERS
5 IMAGES
2004
CHEVROLET TRACKER
P0420 Cat Converter
I Have A 2002 With A P0420 Cat Code. The Factory Cat Was Replaced A Couple Of Years Ago After Becoming Clogged, And Had No Issues To Almost...
Asked by
Craig3777
·
10 ANSWERS
2002
CHEVROLET IMPALA
Code P0420, Catalytic Insufficient?
What All Should I Look At With Cat Code P0420? It Seems To Not Have A Lot Of Power At Times, 02 Sensor Possible. Bank 1? I'm Getting A...
Asked by
floatr925
·
5 ANSWERS
4 IMAGES
2001
DODGE DAKOTA
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