Traditional gasoline car fault

Saturn Sky engine light P2178

I have a 2007 Saturn Sky Red Line. While at wot. boost dropped suddenly from 22lbs. to 14lbs. and engine light came on. Auto Zone found Error Code P2178. I disconnected the batt...

Saturn Sky | P2178

P2178 and P0420 Diagnostic Issue on 2006 Cadillac STS 3.4L - O2 Sensor, Fuel Trim, Catalytic Converter

My 2006 Cadillac STS 3.4L is showing both P2178 and P0420 diagnostic codes. Initially, the vehicle displayed a P0420 code indicating catalytic converter inefficiency on Bank 1. ...

2006 Cadillac STS 3.4l | P0420

2013 VW Jetta P2178 Fault Code: Causes, Diagnosis & Solutions

I'm experiencing the same issue with my 2013 VW Jetta and have been consistently getting fault code P2178. While I'm not certain if this is a common occurrence for Jetta models,...

2013 VW Jetta | P2178

2004 Mazda 3 Check Engine Light: Codes P2178 and P2404 Explained

My check engine light came on recently but has since turned off and hasn't come back on. I've been able to retrieve two diagnostic trouble codes from my 2004 Mazda 3: P2178 and ...

04 Mazda 3 | P2178