2006 NC 2.0
Engine warning light came on. code reader gives 0037 which is heating sensor low. No idea what to do next! Anyone dealt with this one?
Quick google foo gives link to thread on the forum: http://mx5oc.co.uk/forum/yaf_postst69442_Error-code-P0037.aspx
The code seems common across other makes for same fault too.
HTH
https://ecutek.zendesk.com/hc/en-gb/articles/207776949-Mazda-MX-5-2005-on-DTCs
gives more specific code description in case it means more to you than my non mechanic mind:
| P0037 | Rear H02S heater circuit low input |
P0037 means that there is issue with the heater circuit of the post cat(rear) lambda sensor. This is the spark plug size sensor screwed into the exhaust just past the maniverter.
Unlikely to be resolved without fitting a replacement.
thanks for advice. Booked in for replacement.