The composite vehicle fails a loaded mode I/M test for excessive hydrocarbons. Which of the following is the root cause of the problem?

A. Shorted CMP signal wire to the ECM
B. Open CKP sensor
C. Poor connection at ECM terminal 19
D. Blown fuse no. 4


Ans: C. Poor connection at ECM terminal 19

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Fill in the blank(s) with the appropriate word(s).

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