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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA1990PICKUP BASE, 22RREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTS - 4-CYL CARBURETEDMAINTENANCEOUTER VENT CONTROL VALVEPICKUP
1990 Toyota Pickup Base, 22R
Outer Vent Control Valve: Pickup
1990 Toyota Pickup Base, 22RSECTION Pickup
- Disconnect outer vent hose from carburetor. Blow air into outer vent pipe. Check that valve is open. Start engine and let idle. Blow air into outer vent pipe. Check that valve is closed. See Fig 1.
- Unplug harness connector from solenoid. Using an ohmmeter, check the valve's resistance between the positive terminal and solenoid body. Resistance should be 63-73 ohms at 68°F (20°C). If outer vent control valve does not operate as described, replace valve.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.