ASE A8 performance Exam

spark plug wire resistance should be - ANSWER-5000 to 10000 ohms how do you test spark plug cables insulation - ANSWER-spray it with salt water The specification, such as 10 BTDC, indicates that - ANSWER-indicates that the spark occurs at 10 degrees before top dead center of the compression stroke With an increase in speed, ignition must begin - ANSWER-earlier to end by 23 degrees ATDC Each cylinder must produce power once every - ANSWER-720 degrees what is the differance between tbi pfi and gdi - ANSWER-throttle body injection port fuel injection gas direct injection ideal air to fuel ratio is - ANSWER-14.7:1 EGR valve, air pump, and evaporative emissions canister are controlled by the - ANSWER-pcm what is open loop mode? - ANSWER-when the engine is too cold to burn all fuel the engine doesn't respond to sensor feedback Fail-Safe or Limp-In Mode - ANSWER-ether usses other signals to compensate for out of range sensors or limits the rpm to 1200 tps adaptive strategy does what - ANSWER-if something like the tps drops from its normal range it will adjust for wear by adding voltage. Air induction system - ANSWER-An engine system that directs outside air into the engine's intake manifold Closed loop - ANSWER-An electronic feedback system in which the sensors provide constant information on what is taking place in the engine Drive cycle - ANSWER-The operating conditions that must exist before OBD II self-diagnosis can take place. It includes an engine start and operation that brings the vehicle into closed loop and includes whatever specific operating conditions are necessary, either to initiate and complete a specific monitoring sequence or to verify a symptom or repair.