Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA1994INTEGRA (GS-R) L4-1797CC 1.8L DOHC (VTEC)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSDIAGRAMS
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)
Emission Control Systems: Diagrams
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)SECTION Diagrams
System Schematic:
SYSTEM SCHEMATIC
SYSTEM SCHEMATIC LEGEND:
Item Description
1 Heated Oxygen Sensor
2 Manifold Absolute Pressure Sensor
3 Engine Coolant Temperature Sensor
4 Intake Air Temperature Sensor
5 Knock Sensor
6 Idle Air Control Valve
7 Fast Idle Thermo Valve
8 Fuel Injector
9 Fuel Filter
10 Fuel Pressure Regulator
11 Fuel Pump
12 Fuel Tank
13 Fuel Tank Evaporative (EVAP) Emission Valve
14 Fuel Pulsation Damper
15 Air Cleaner
16 Resonator
17 Intake Air Bypass (IAB) Control Diaphragm Valve
18 IAB Control Solenoid Valve
19 IAB Vacuum Tank
20 IAB Check Valve
21 Three-Way Converter
22 Positive Crankcase Ventilation Valve
23 EVAP Control Canister
24 EVAP Purge Control Solenoid Valve
25 EVAP Purge Control Diaphragm Valve
26 EVAP Two-Way Valve
Vacuum Line Routing:
VACUUM LINE ROUTING
RENDER: 1.0x
NO RELATED
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.