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I have a 2002 Mazda B2300. Recently my check engine light came on, and because of my states emmissions test I can't get an inspection sticker with the light on. I went to Auto Zone and the code their machine gave is "P1537 - 1MR CTRL - Bank #1 stuck open." I'm curious if anyone knows what this mean? The guy at Auto Zone said he didn't know. I've been told by a few people that my Oxgen Censor may be bad. Anyone know if this could be the problem?

Thanks in advance!:hy:

8,172 Posts
This is all I can come us with

2.3L L4 VIN D

Trouble Code: P1537

Bypass Air Solenoid Circuit Malfunction

Possible Causes:

Bypass air solenoid control circuit is open or shorted to ground
Bypass air solenoid power circuit is open
Bypass air solenoid is damaged or has failed
PCM has failed
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