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Volvo
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1994
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940 L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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A/C Signal
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Description and Operation
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A/C Control Signal
A/C Control Signal
Used by the fuel injection ECU:
The climate control ECU (one unit with control panel) sends the fuel injection ECU a signal when the A/C is in operation to compensate for the additional engine load.