Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Chapter 1, Problem 4MC
To determine
The government-mandated warranty that specifically covered the catalytic converters and engine control module is
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Technician A says that the PCM illuminates the mil if a defective causes emission levels to exceed 2.5 times the emission standards for that model year vehicle. Technician B says that if a misfire condition threatens engine or catalyst damage, the PCM flashes the mil. Who is correct
How can ambient temperature and pressure affect vehicle emission rates?
Which of the following statements regarding the “Pre-Emission Inspection Check” Of a diesel powered vehicle that is subject to Opacity (Smoke Meter) testing is not true?
The governor (if equipped), the exhaust system, and the emissions control devices must all be checked.
The exhaust system must be checked for any missing sections which would prevent collection of a valid exhaust sample.
Vehicles not meeting requirements cannot be inspected. This is not considered an inspection or rejection and no fee is to be charged.
The governor, if originally equipped, must be checked for presence, connection, and operation.
Chapter 1 Solutions
Automotive Technology
Ch. 1 - List at least five different types of businesses...Ch. 1 - Name the different ways that you can gain work...Ch. 1 - Explain the implied difference between someone who...Ch. 1 - Explain the basic requirements for becoming a...Ch. 1 - Which of the following have had a significant...Ch. 1 - Individuals often begin a career as an automotive...Ch. 1 - Prob. 3MCCh. 1 - Prob. 4MCCh. 1 - Which of the following is typically included in a...Ch. 1 - Prob. 6MC
Ch. 1 - Repair work performed on vehicles still under tire...Ch. 1 - Prob. 8MCCh. 1 - Normally, whose job is it to greet the customer...Ch. 1 - Technician A says that all an individual needs to...Ch. 1 - To be successful, todays automotive technician...Ch. 1 - A technician must have a minimum of year(s) of...Ch. 1 - An experienced technician who passes all eight...Ch. 1 - Technician A says battery warranties are often...Ch. 1 - Prob. 15MCCh. 1 - Ongoing technical training and support is...
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- the goverment mandated warranty that specifically covers the catalytic converter and engine control module is thearrow_forwardWhich engine design feature influences the emissions most strongly?arrow_forwardWhile discussing OBD II systems: Technician A says that the PCM illuminates the MIL if a defect causes emission levels to exceed 2.5 times the emission standards for that model year vehicle. Technician B says that if a misfire condition threatens engine or catalyst damage, the PCM flashes the MIL. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- The Diesel Emissions Opacity Inspection Procedure includes a visual check of the OEM (Original Equipment Manufacturer) emissions control devices for presence and connection. The Certified Inspector must reject the vehicle if any are missing, disconnected, or disabled (tampered). True or False?arrow_forwardNOX emissions increase as combustion temperatures increase. True Falsearrow_forwardWhile discussing automotive emissions: Technician A says that oxygen emissions are monitored because they are an indication of the completeness of the combustion process. Technician B says that the conditions for minimizing HC emissions are the same as those that cause high NOx emissions. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- Explain engine emission control by three-way catalytic converter system.arrow_forwardTechnician A says that the catalytic converter is used only to quiet the noise of the exhaust. Technician B says that the catalytic converter is used to alter the contents of the engines exhaust. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhile discussing the catalyst efficiency monitor: Technician A says that if the catalytic converter is not reducing emissions properly, the voltage frequency increases on the downstream HO2S. Technician B says that if a fault occurs in the catalyst monitor system on three drive cycles, the MIL will be illuminated. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward
- Which of the following statements about vehicles that are subject to Diesel Opacity Emissions (Smoke Meter) Inspection is NOT true? Only diesel powered vehicles with a Gross Vehicle Weight Rating (GVWR) over 8,500 pounds, per New York State Department of Environmental Conservation (DEC) regulations. “DEMA” will appear on a vehicle's New York State registration to indicate that the vehicle is subject to an opacity smokemeter test (in addition to the safety inspection). The “DEMA” (Diesel Emissions Metropolitan Area) Counties include Suffolk, Nassau, Queens, Kings, Richmond, New York, Bronx, Westchester & Albany. Only diesel powerearrow_forwardWhich of the following statements about fuel trim is not true? a. A positive fuel trim value means that the PCM detects a lean mixture and is decreasing the pulse width to add more fuel to the mixture. b. Short-term fuel trim represents changes made immediately in response to HO2S signals. c. Long-term fuel trim represents changes made to set a new base pulse width. d. Long-term fuel trim responds to the trends of the short-term fuel trim.arrow_forwardExplain the steps involved in disconnecting a fuel line on a vehicle Multi port direct injection Gasoline direct injectionarrow_forward
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