Technicians will note C1618 code present and any freeze frame data associated with them.Qualified technicians will begin by using a scan tool to access C1618 code stored in the ECU.How To Repair C1618 Codeīefore starting let's see C1618 repairing process steps: The vehicle service manual should be consulted for more information on possible causes of the error code, along with required testing. Your car parts or components should not be replaced with reference to only a C1618 DTC. The reason of C1618 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.
O2 Sensor Heater Circuit Malfunction and Ignition/Distributor Engine Speed Input Circuit Malfunction causes most of code C1618. Optimizing this mixture means better fuel economy and fewer exhaust emissions.Ĭ1618 OBD-II Diagnostic Chassis (C) Trouble Code DescriptionĬ1618 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses. The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. 8 Timing Reference High Resolution Signal A Too Many Pulses
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