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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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Chapter
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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

Which sensor is used for misfire monitoring on OBD II systems?

  1. Oxygen sensor

  • Camshaft position sensor
  • Crankshaft position sensor
  • DPFE sensor
  • To determine

    The sensor used for monitoring misfiring in OBD II systems.

    Explanation

    When an engine cylinder misfires, due to lack of proper combustion hydrocarbons are released from the cylinder. Misfiring also reduces the engine power. An OBD II system detects the engine misfire by monitoring the speed of the crankshaft. For each engine misfire a crankshaft position sensor is required to measure the acceleration of the crankshaft. The crankshaft position sensor monitors continuously and indicates a reduction in the acceleration of the crankshaft for each misfire.

    Oxygen sensor:

    An oxygen sensor is used to detect the amount of oxygen of oxygen in the exhaust of the vehicle...

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