Section 4 · Pages 139–182 (44 pages)

Fuel Control (TBI 220 and TBI 700)

From the 1987 GMC Light Duty Truck Fuel, Emissions and Driveability Manual

Throttle body injection fuel control: TBI 220 on V6 and V8 engines and TBI 700 on the four-cylinder. It covers fuel pipes, tank and accelerator control, then service of the fuel meter cover, injectors, fuel meter body, pressure regulator, throttle position sensor and output checks, threaded and flange IAC valves, throttle body and minimum idle speed adjustment, plus the fuel pump and relay, fuel module, oil pressure switch and inline and in-tank filters.

Read this section free, starting at page 139

What this section covers

  • TBI 220 injector, meter cover and meter body
  • TBI 700 injector and pressure regulator
  • TPS output checks
  • IAC valves
  • Minimum idle speed adjustment
  • Fuel pump, relay and oil pressure switch
  • Fuel filters
Year
1987, 1988
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 10–30; 1988 C/K
Publication
X-8736
Pages
262

What’s inside

Fuel and emissions manual

  1. 1General Informationpp. 7–22
  2. 2Driveability Symptomspp. 23–28
  3. 3Computer Command Controlpp. 29–138
  4. 4Fuel Control (TBI 220 and TBI 700)pp. 139–182
  5. 5Evaporative Emission Control System (EECS)pp. 183–188
  6. 6Ignition System and ESTpp. 189–196
  7. 7Electronic Spark Controlpp. 197–200
  8. 8Air Management Systempp. 201–210
  9. 9Exhaust Gas Recirculation (EGR) Systempp. 211–220
  10. 10Automatic and Manual Transmission Controlspp. 221–230
  11. 11Positive Crankcase Ventilation (PCV)pp. 231–234
  12. 12Thermostatic Air Cleaner (THERMAC)pp. 235–240
  13. 13Special Tools and Specificationspp. 241–248
  14. 14Abbreviations and Glossary of Termspp. 249–252
  15. IndexAlphabetical index of subjects with section and page references, followed by reply cards.pp. 253–262

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