Question # 49

A vehicle sets P0135 (O2 Sensor Heater Circuit Bank 1 Sensor 1). What will this most likely result in?

Options:

A.

Slow O2 sensor response at cold start

B.

Lean mixture at idle

C.

Rich mixture under load

D.

High NOx emissions

Viewing question 49 out of 72 questions
Industry research shows that students who utilize L1 practice tests are significantly more likely to pass exam.


Our free L1 practice questions act as a diagnostic tool to give you a clear snapshot of your Automotive Service Excellence Level 1 readiness. Discover which topics are your strengths and, more importantly, which critical topics require your immediate attention.