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Mini quiz · Lesson 01
OBD-II Diagnostics & Freeze-Frame Analysis
Question 01 / 06
A P-code by itself tells you:
Question 02 / 06
P0171 with freeze frame captured at idle, cold engine suggests:
Question 03 / 06
LTFT of +18% on bank 1 means:
Question 04 / 06
Mode 6 misfire counters are most useful for:
Question 05 / 06
Bidirectional control lets you:
Question 06 / 06
CASE: 2014 F-150, P0171 + P0174 (both banks lean), LTFT +22% on both, idle rough, gets worse cold. Smoke test reveals heavy smoke at the intake manifold gasket. Best repair plan?
0 / 6 answered