Engine Performance I & II How I will be covering this material A lot like a coach would field his team Each position has a job to do and they are all important If one position is not doing his job the whole team could be beaten

Engine Performance I & II #1 The Pitcher O B D On Board Diagnostics Just like the pitcher is involved with every play the OBD system every aspect of the engine OBD History Open & Closed Loop Failsafe & Adaptation

Engine Performance I & II #2 The Catcher Codes Just like the catcher sends signals for a pitch Codes send us signals that indicate a problem OEM Generic Freeze Frame Codes

Engine Performance I & II #3 First Base Ignition Nobody ever scores without first reaching 1st base The engine simply will not run without Ignition Ign Distributor DIS Timing

Engine Performance I & II #4 Second Base Fuel Delivery After 1st you must go to 2nd Fuel The along with ignition you must have fuel Pressure Volume

Engine Performance I & II #5 Third Base Fuel Injection After 2nd you must go to 3rd Once you have fuel it must be injected Inj CPFI Port Sequential Direct

Engine Performance I & II #6 Short Stop Air Induction The short stop fills in the gap Air Emissions cannot escape Computer & Emission Control

Engine Performance I & II #7 Left field Oxygen Sensors Left field gets most of the hits O2 Oxygen sensors are where we spend most of the time Basic Wide Band Air Fuel Meters

Engine Performance I & II #8 Center field Fuel Trim Fuel Trim The center fielder has to cover a lot of ground Fuel trim shows us what the PCM is doing Short Term Long Term

Engine Performance I & II #9 Right field Components Right field plays an important role Components Components are what makes things happen EGR, ECT, TPS IAT, IAC, ETC

Engine Performance I & II #10 Bull Pin Monitors Bull Pin Closers are usually very good at under pressure Monitors are always watching and measuring Misfire, Speed, Evap, CAT,

What are we going to cover in these classes Vacuum Oxygen sensors Fuel Trim Misfire Monitors Mode $06 Elec Throttle Control O2 Wide Band Evap MIRC Secondary Waveforms Current Ramping DPFE Fuel Pressure CAT Efficiency Volumetric Efficiency Drive Cycles CAN No Starts Inj Pulse Width Emmission Tests Fuels 5 Gas Turbochargers Flashing PCM’s Hybrids 221 222 Inputs Communications Read Electical Diagrams Voltage Drop Labscopes Sensors Ignition Systems Modules Fuel Delivery Fuel Injection Scanners Codes & PID MAP MAF ECT & Temp sensors EGR CRK CAM O2 sensors IAC TPS Knock & VSS