Questions & Answers for: Mazda MX-5 Miata p0420 code

check engine light the first time the light came on the code was o-2 sensors. ireplaced both.the light came on again,thistime the code was cat converter.replaced my cat converter.the light is on again

...P0420 code is a more common one in general. The description for P0420 is Catalyst System Efficiency Below Threshold (Bank 1). You're going to want to focus your diagnosis efforts on the O2 sensors, ...

I have disconnected the battery to my MX5 and now when I try to use the stereo it just comes up with Err? when the live is disconnected the stereo locks itself to unlock it you need the code which is ...

Err flashing code on radio. MX5 2002. How do I fix this? Is there a master code for this unit? press 6>>press AMpress Auto Mpress ^- - - - is displayedenter the code 1414press and hold Auto M ...

Car battery goes dead after 1 week of inoperation. Now the check engine is on with OBD codes of P2402 an P0441. Those Codes are EVAP ( emission codes), not likley that the battery problem and those ...

1999 miata has check engine light on. i turned it off and it stayed out for about a month. took to autozone had two codes exuast and cat. converter. whats wrong with this car? exhaust doesnt sound ...

P0446 error code. ... already replaced gas gap with new. ... runs fine great gas mileage .. no noticable effects. its a code for the vent valve not operating correctly. see; ...

trouble code P0421 on a 2000 Miata what can I do to fix this issue I get a OBD11 code of P0421. I have removed and replaced spark plugs and the vehicle is running great. I still get the check engine ...

I had a check engine light come on when the vehicle was running bad. The OBD code read P0421. I pulled the plugs cleaned and gapped the, checked wires and started the car. It is running great now, but

how reset check engine light how to cut off check eng light on a 1990 mazda meita The easiest way to reset a check engine light on almost any modern car is to disconnect the battery wait five minutes ...