AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
7th Edition
ISBN: 9780357096789
Author: ERJAVEC
Publisher: CENGAGE L
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Textbook Question
Chapter 32, Problem 1MC
A mini-converter is used _____.
a. on small vehicles where a normal converter will not fit properly
b. on engines that use leaded fuels
c. in conjunction with EGR systems to supply clean exhaust for the cylinders
d. to reduce emissions during engine warmup
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Chapter 32 Solutions
AUTOMOTIVE TECHNOLOGY -W/MINDTAP ACCESS
Ch. 32 - What is the difference between psia and psig...Ch. 32 - Describe two methods to check for a restricted...Ch. 32 - What is acoustic supercharging?Ch. 32 - Describe the basic operation of an intake manifold...Ch. 32 - Prob. 5SACh. 32 - Prob. 6SACh. 32 - True or False? All wastegates are controlled by...Ch. 32 - True or False? Engine misfires can cause a...Ch. 32 - A mini-converter is used _____. a. on small...Ch. 32 - A restricted exhaust system can cause______. a....
Ch. 32 - Which of the following is not characteristic of a...Ch. 32 - Ten psi of turbo boost means that air is being fed...Ch. 32 - What manages turbo output by controlling the...Ch. 32 - What is the first step in turbocharger inspection?...Ch. 32 - Prob. 7MCCh. 32 - Technician A says that a turbocharger has its own...Ch. 32 - Technician A makes sure that the exhaust system is...Ch. 32 - Technician A says vacuum refers to any pressure...Ch. 32 - Technician A uses sandpaper to remove carbon...Ch. 32 - Technician A says that a vacuum leak results in...Ch. 32 - Technician A says that vacuum hose routing for the...Ch. 32 - Before replacing any exhaust system component:...Ch. 32 - A vehicles intake manifold is warped: Technician A...Ch. 32 - Technician A says that the catalytic converter is...Ch. 32 - Technician A says that the exhaust manifold gasket...
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- A restricted catalytic converter can cause all of the following except. a. stalling after the engine starts b. popping or backfiring through the intake manifold c. a drop in engine vacuum d. increased power at high speedsarrow_forwardWhen the throttle plates are closed in a port injection system, where does the air needed for idle speeds come from?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_forward
- Name the three types of emissions being controlled in gasoline engines.arrow_forwardWhile discussing catalytic converter diagnosis: Technician A says that Mode $06 data should be checked. Technician B says that a good converter is evident by low amounts of CO2 in the exhaust. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardExplain the steps involved in disconnecting a fuel line on a vehicle with: Multiport fuel injection (50 - 60 words) Gasoline Direct Iniection (30 - 40 words)arrow_forward
- what are the three methods used to direct the fuel spray in a GDI enginearrow_forwardWhat affects the efficiency of a catalytic converter? exhaust quality air/fuel ratio its temperature fuel qualityarrow_forwardWhile discussing the MIL on OBD II systems: Technician A says that the MIL will flash if the PCM detects a fault that would damage the catalytic converter. Technician B says that whenever the PCM has detected a fault, it will turn on the MIL. Who is correct? a. Technician A • Technician B • Both A and B • Neither A nor Barrow_forward
- While 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_forwardWhich of the following would not cause a hard-to-start problem on a PFI engine? a. A defective IAC valve b. A defective oxygen sensor c. A leaking fuel pressure regulator d. Dirty injectorsarrow_forwardWhile discussing the proper way to test a catalytic converter: Technician A says that a pressure gauge can be inserted into the oxygen sensor bore and the backpressure caused by the converter measured. Technician B says that restrictions in the converter can be checked with a vacuum gauge while the engine is being quickly accelerated. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
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