Bought a simple little obd2 code reader to find wtf is throwing check engine all the time:-0 this has been going on for 9 months now:-( p0021, p055, 56. P0021 is maf sensor low input voltage, and 0056 and 0055 is o2 sensor heater problems. Put all new o2 sensors in and still throwing codes?? Ideas anyone? Wiring problems? Any ideas appreciated ;-) as I have run out of them:-(
I have checked fuses, not sure which one it would be? It has two that say emissions ? It has me stuffed:-( all new quality o2 sensors, checked wires connectors etc.
