
2002 Mazda 626 LX 2.0L MIL Lamp on
This vehicle runs very well. The check engine light comes on with code 421. Checked o2 sensors both [...] appear to be working [running up & down the scale]. I don't want to replace the cat con and found I made an expensive mistake. Is there something I am ove...
Summary posted 2/9/2009
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)7 Replies Received(Hide Replies)7 Replies Received
|
Message Closed w/Summary
|
VIN | 1YVGF22E52 |
Engine | 2.0 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
421 | catalyst warm up efficency low |
Message Closed w/Summary
Vehicle Data
2002 Mazda 626 LX
VIN | 1YVGF22E52 |
Engine | 2.0 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
421 | catalyst warm up efficency low |