OBD Diagnostic Port Fuel Injection

Part 1 Introduction; this discusses the applications by body code and engine code. It cross references the individual system components on each engine code

Part 2 Fuel Control systems; this section discusses the components of the fuel system from pump to injectors, and all the components or sensors that provide ECM (PCM OBD II) inputs for proper fuel control. It shows the spray pattern from the injectors. It includes flow charts for the trouble codes (DTC) and fuel injection diagnostic flow charts.

Part 3 PFI Air Induction system; this section describes in detail the air induction components like the throttle body and its subcomponents, the MAF sensor, and air filters. It explains the differences between calculating air flow based on speed density and true air flow systems.

Part 4 Ignition System; in this section it includes a discussion on the advancements from HEI type ignition to EST ignition and the ESC detonation reduction for protection of the engine. It explains the changes from a distributor ignition system to a crank and cam sensor system. It includes flow charts for the proper testing of the EST and ESC systems. 

Part 5 Emissions Systems; in this section there is a complete discussion of the charcoal canister (EVAP), Canister Purge Valve, PCV, EGR, Ported EGR, EVRV, EGR filter, EGR temp sensor, Deceleration Valves, Wastegate Solenoids, and AIR systems

Part 6 Supplemental Information; a discussion of the special tools needed to service these systems, how to remove the terminals from connectors and how to properly repair the wiring should it be damaged is found in this section.