Section 4 · Pages 149–192 (44 pages)

Fuel Control System (TBI 220 and TBI 700)

From the 1989 GMC Light Duty Truck Fuel, Emissions and Driveability Manual

Throttle body injection fuel control for the TBI Model 220 on V6 and V8 engines and the TBI Model 700 on the 2.5L four. It covers fuel pressure relief and the fuel system pressure test, controlled idle speed and minimum idle air rate checks, component service for each unit (fuel meter cover and body, injectors, pressure regulator, TPS, idle air control valve and throttle body), and the fuel pump, relay, fuel module, filters, lines and tank.

Read this section free, starting at page 149

What this section covers

  • Fuel pressure relief and pressure test
  • Idle speed and minimum idle air checks
  • TBI 220 component service
  • TBI 700 component service
  • Idle air control valve
  • Fuel pump, relay and fuel module
  • Fuel filter, lines and tank
Year
1989
Make
GMC
Vehicle
C/K Trucks, G Vans, Light Duty Trucks, M Vans (Astro/Safari), P Forward Control, R/V Trucks, S/T Trucks, Trucks
Type
Fuel & Emissions, Supplement
Models
R/V, G, P, S/T, M, C/K 10–30
Publication
X-8936
Pages
274

What’s inside

Fuel and emissions manual

  1. Foreword and ContentsTitle page, foreword naming the shop manuals this book supplements, safety cautions on fasteners and service, and the table of contents.pp. 1–6
  2. 1General Informationpp. 7–24
  3. 2Driveability Symptomspp. 25–30
  4. 3Computer Command Control (Scan Tool Diagnosis)pp. 31–148
  5. 4Fuel Control System (TBI 220 and TBI 700)pp. 149–192
  6. 5Evaporative Emission Control System (EECS)pp. 193–198
  7. 6Ignition System and ESTpp. 199–206
  8. 7Electronic Spark Control (ESC)pp. 207–210
  9. 8Air Management Systempp. 211–220
  10. 9Exhaust Gas Recirculation (EGR)pp. 221–230
  11. 10Automatic and Manual Transmission Controlspp. 231–240
  12. 11Positive Crankcase Ventilation (PCV)pp. 241–244
  13. 12Thermostatic Air Cleaner (THERMAC)pp. 245–250
  14. 13Special Toolspp. 251–258
  15. 14Abbreviations and Glossarypp. 259–274

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