A secondary ignition oscilloscope pattern is being analyzed. The voltage spikes of cylinders #1, #2, and #3 are 9 to 12 kV while cylinder #4 is 35 kV. What is the most likely cause of this?

A. open plug wires for cylinders #1, #2, and #3
B. shorted spark plug
C. grounded plug wires
D. open plug wire for cylinder #4


Answer: D

Trades & Technology

You might also like to view...

Discuss ways to control weeds in a vineyard

What will be an ideal response?

Trades & Technology

Once siding is laid out for the desired exposure, the layout is transferred to other locations with a ____.

a.chalk line b.story pole c.tape measure d.yardstick

Trades & Technology

In a two pipe system

A) Each convector is supplied with the same temperature hot water B) All the water flows through each convector in the loop C) The main supply water temperature drops a little through each convector D) The convector can be used for both heating and cooling

Trades & Technology

ASE-Style Multiple Choice ____ are used in almost all vinyl roof repairs as well as other plastic repairs.

A. Body jacks B. Hydraulic lifts C. Heat guns D. Sander pads

Trades & Technology