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1999 Mazda Protege DX 1.6L No MIL Light
Posted to Asian Driveability on 8/30/2007 6 Replies

I replace pcm with a mazda reman. and the same thing happens. 02 sensor look like they mimick eachother and have a new cat. Why is a code set but not turning on check engine light and why is no pending codes not setting the code this is really baffling me. ple...

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  Related Documents & Media  1999 Mazda Protege DX

 
Message Closed w/FIX

car Vehicle Data

1999 Mazda Protege DX

VIN JM1BJ2226X
Engine1.6 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsNo MIL Light
OccursAfter All Ready Monitors Set
Misc.Lx

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/FIX

car Vehicle Data

1999 Mazda Protege DX

VIN JM1BJ2226X
Engine1.6 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsNo MIL Light
OccursAfter All Ready Monitors Set
Misc.Lx

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)