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 MANUALSCHEVROLET1982S10,T10 P/U,BLAZER V6-173 2.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTHROTTLE POSITION SENSORADJUSTMENTS
1982 Chevrolet S10,T10 P/U,Blazer V6-173 2.8L
Throttle Position Sensor: Adjustments
1982 Chevrolet S10,T10 P/U,Blazer V6-173 2.8LSECTION Adjustments
NOTE: Do not remove plug sealing TPS adjustment or adjust TPS unless carburetor is overhauled or "Computer Command Control (C3)" system diagnosis indicates a problem with the switch.
1. Drill a 5/64 inch hole, 1/16 to 1/8 inch deep, in plug covering TPS adjustment screw.
2. Thread a small slide hammer or equivalent into plug and remove plug from air horn.
3. Disconnect TPS connector and jumper all three terminals.
4. Connect digital voltmeter J-29125-A or equivalent to center and bottom terminals of connector.
5. With ignition On and engine Off, turn TPS adjusting screw to obtain .26 volts.
6. Turn ignition Off and install a new plug over TPS adjusting screw or seal opening with RTV sealer.
1. Drill a 5/64 inch hole, 1/16 to 1/8 inch deep, in plug covering TPS adjustment screw.
2. Thread a small slide hammer or equivalent into plug and remove plug from air horn.
3. Disconnect TPS connector and jumper all three terminals.
4. Connect digital voltmeter J-29125-A or equivalent to center and bottom terminals of connector.
5. With ignition On and engine Off, turn TPS adjusting screw to obtain .26 volts.
6. Turn ignition Off and install a new plug over TPS adjusting screw or seal opening with RTV sealer.
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.