1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

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

8. 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

9. 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

10. 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

11. 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,

12. 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