Pontiac Fiero 1988 Service Manual page 517

6E2-C-1 DRIVEABILITY A N D EMISSIONS - F U E L INJECTION (PORT)
SECTION C
COMPONENT
SYSTEMS
Section C provides i n f o r m a t i o n on the f o l l o w i n g :
• General description o f components and systems.
• On-vehicle service.
• Part names and g r o u p numbers.
• Diagnostic charts. These include a functional check o f t h e system as well as diagnosis of any problem
f o u n d in t h e functional check.
For locations of components, w i r i n g diagrams, and ECM Terminal End View, refer t o the f r o n t on t h e A Section
of t h e engine being diagnosed.
Following are t h e sub-section identification and t h e system covered:
® Q Electronic Control M o d u l e (ECM) and Sensors . . . . . . . . . . . Page C1-1
• C2 Fuel Control System - TBI 700 . . . . . . . . . Page C2-1
9 C3
Evaporative Emission Control System (EECS) . . . . . Page C3-1
• C4
Direct Ignition System "DISVEST 2.5L
• • . . Page C4-1
- • C7 Exhaust Gas Recirculation (EGR) System . Page C7-1
• C8 Transmission Converter Clutch (TCC) System Page C8-1
• C10 ECM Controlled A i r Conditioning . P a g e d 0-1
• C12 Electric Cooling Fan . . Page C12-1
• C13 Positive Crankcase V e n t i l a t i o n (PCV) P a g e d 3-1
DIAGNOSTIC CHARTS
The Diagnostic Charts for each system are f o u n d after the on-car service and parts i n f o r m a t i o n at the back o f
each section. Following are t h e charts f o u n d in this section.
9 Chart C-1A
Park Neutral Switch Diagnosis . Page C1-10
® Chart C-1D MAP O u t p u t Check . . . . . . . . . . P a g e d - 1 2
• Chart C-4D-1 "DIS" Misfire A t Idle . . . Page C4-6
• Chart C-4D-2 "DIS" Misfire Under Load . * Page C4-8
• Chart C-7A Exhaust Gas Recirculation (EGR) Check (Non-ECM Controlled) Page C7-4
• Chart C-8A 125C Transmission Converter Clutch (TCC) (Electrical Diagnosis) Page C8-4
• Chart C-8B Manual Transmission (M/T) Shift Light Check Page C8-6
9 Chart C-10
A/C Clutch Control . Page C10-2
• ChartC-12 Engine Cooling Fan . . . . . . Page C12-2