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Question # 16

An ignition waveform shows low firing voltage with long burn time across all cylinders. Fuel trims are negative. What does this suggest?

Options:

A.

Rich overall mixture

B.

Lean overall mixture

C.

Weak ignition coil

D.

Excessive plug gaps

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L1 Overview

Name Automotive Service Excellence Level 1
Code L1
Vendor Skilled Trades
Certification ASE

L1 Questions