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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Engine Temperature Sensor: Specifications


Ignition Timing 9-11~ BTDC/1500-2000 rpm

Oxygen Sensor Voltage Range Approx. 0.1-0.9 V

EGR Vacuum Switching Valve Resistance 33-39 Ohms

Coolant Temperature Sensor Approximate Temperature/Resistance Relationship:

-18~C (0~F) 25K Ohms

-7~C (20~F) 13.5K Ohms

4~C (40~F) 7.5K Ohms

20~C (68~F) 3.4K Ohms

38~C (100~F) 1.8K Ohms

70~C (160~F) 450 Ohms

100~C (212~F) 185 Ohms