Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
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Test H: Fuel Control
Compuvalve Circuit Data Sheet:
02S Voltage Specification:
H1 - H4:
H5 - H7:
H10 - H13:
This pinpoint test is intended to diagnose:
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HO2S
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HO2S connections
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Vacuum systems
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Compuvalve -
Harness circuits: HO2S and VPWR
CAUTION: Probing or piercing wiring insulation is not permitted and may allow water entry, causing corrosion and shorting which may result in HO2S failure.