In Addition to Flashing the MIL, How Do Many OBD

question 5

Multiple Choice

In addition to flashing the MIL, how do many OBD II PCMs react to a "Type A" (severe) cylinder misfire?

• A) The PCM turns off the spark for the misfiring cylinder.
• B) The PCM turns off the fuel injector for the misfiring cylinder.
• C) The PCM increases fuel delivery for the misfiring cylinder in order to allow the extra unburned fuel to cool the catalytic converter.
• D) The PCM energizes an oil solenoid which allows a specially designed lifter to collapse, resulting in keeping the exhaust valve closed so as to block exhaust flow from the misfiring cylinder.

---

Definitions:

Regression

A statistical method used to examine the relationship between one dependent variable and one or more independent variables.

Intercept Term

In statistics, the intercept term is a constant value that represents where the estimated regression line crosses the y-axis.

Stepwise Regression

An approach to constructing regression models where the selection of predictor variables is performed through an automated process.

Forward Selection

A stepwise regression approach where variables are sequentially added to an empty model based on their statistical significance in predicting the outcome.