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Cooling SystemSender Unit, coolant temperature
The coolant temperature sender unit reads the temperature of the coolant and sends the information to the Electronic Control Unit (ECU) and the dashboard. It is important to have a well functioning sender unit as this impacts the ECU's air-fuel ratio command, impacting fuel economy and performance. Faulty units should be replaced quickly for smooth engine running - see Ottocarparts.com's range of high quality replacements.
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