Diagnostic Trouble Code P0171 & P0421 What Should I DO
Apr 8, 2005 · My 1996 Ford Probe with a 4-cylinder engine which is all stock came up with the diagnostic codes PO421, which is "Warm Up Catalyst Efficiency Below Threshold (Bank1)," and …
Millenia/Xedos 9 - Car Forums and Automotive Chat
Cel - P0421 Bank 1 Cat Efficiency Below Limit Millenia Online Parts Millenia srpings 2001 Millenia engine interchange info needed FOR SALE: KLZE KL31 Cams i need instructions to program a …
Camry FAQs/Information - SEARCH HERE AND FORUM BEFORE POSTING
Jun 27, 2005 · P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1) P0422 Main Catalyst Efficiency Below Threshold (Bank 1) P0423 Heated Catalyst Efficiency Below Threshold (Bank 1) …
Mazda 2004 Code P0421 - Car Forums and Automotive Chat
Deluzion 03-14-2010, 02:46 PM I just purchased a Mazda 04 and the engine went off recently with a code of P0421 with the following possible causes: -Exhaust leak -Check other service codes first …
P0420 Code on 1999 Honda Accord EX - Automotive Forums .com
Jan 9, 2007 · DTC P0420, P0421, P0430 & P0431: Check Possible Cause Of Misfire DTC P0420 and P0421 indicates bank one catalyst system efficiency is minimum requirement. DTC P0430 and …
Probe - Page 3 - Car Forums and Automotive Chat
Diagnostic Trouble Code P0171 & P0421 What Should I DO ? Help!!!!!!! 93 pgt 5spd 4 sale 1993 PSE For Sale WTB: 2G Blue Interior Door Latch & Trim Panel FS: showgun front bumper Running wires!!! …
Tacoma FAQs and Information - Search/Read Here Before Posting
Jun 27, 2005 · P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1) P0422 Main Catalyst Efficiency Below Threshold (Bank 1) P0423 Heated Catalyst Efficiency Below Threshold (Bank 1) …
4Runner FAQs - Car Forums and Automotive Chat
Feb 3, 2005 · FIXING PAINT CHIPS AND SCRATCHES Materials 1. Small bottle of the proper Toyota touch up paint and Toyota clear coat, if needed (Toyota metallic finishes are clearcoat; a non-metallic …