1998 Mazda Protege ES 1.8L MIL Lamp on
Gentlemen I had this vehicle a while ago for running too lean.I replaced the air intake hose reset the code and the customer was [...] came back again yesterday with code P-0421 (warm up catalyst efficiency below threshold)bank-1. Had anyone dealt with this co...
FIX posted 4/23/2007
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Vehicle Data1998 Mazda Protege ES
Trouble Codes
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Message Closed
Vehicle Data
1998 Mazda Protege ES
VIN | JM1BJ2217X |
Engine | 1.8 L / 4 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Not Applicable |
Trouble Codes
P0421 | Catalytic Converter Efficiency (Bank 1) |