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

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Oxygen Sensor


Canister Purge Valve Resistance 20 ohms
Oxygen Sensor Heater Resistance 3 ohms (cold) 13 ohms (hot)
Oxygen Sensor Operating Voltage (engine running) 0.4 - 1.0 volts
Oxygen Sensor Heating Element current draw 0.5 - 1.3 A


Tune-up Specifications

Firing Order 1-3-4-2
Idle Speed 850±50 RPM [1] 880±50 RPM [2]
Timing Not adjustable [3]
Fuel Mixture < 0.5% [4]

[1] 8 valve engine
[2] 16 valve engine
[3] Computer Controlled
[4] Not adjustable, taken at the tail pipe