Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Throttle Position Sensor: Specifications

Base Ignition Timing [1] 8 ± 2° BTDC at idle

Advance Ignition Timing [2] 8 - 13° BTDC at idle

Feedback Solenoid Valve
Resistance @ 68°F 54 - 66 ohm

Slow Cut Solenoid Valve
Resistance @ 68°F 48 - 60 ohm

Throttle Opening Solenoid Valve
Resistance @ 68°F 36 - 44 ohm

Vacuum Switch
On More Than 5.8 psi (40 kPa)
Off Less Than 3.9 psi (26 kPa)

TPS Output Voltage
Standard value 250 mV

TPS Resistance
Standard value 3.5 - 6.5 ohm


[1] Refer to ADJUSTMENT PROCEDURES.