1991 Mercedes-benz 560sec P3493 Fault Code Check

When you check 1991 Mercedes-benz 560sec car engine light came on code P3493 the reason should be . However Mercedes-benz manufacturer may have a different definition for the P3493 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

On 1999 and later P3493 1991 1991 Mercedes-benz 560sec engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

1991 Mercedes-benz 560sec P3493 OBD-II Diagnostic Powertrain (P) Trouble Code Description P3493 Cylinder 12 Exhaust Valve Control Circuit/Open so you have to check ODB-II Fault Code Check list. Reason For 1991 Mercedes-benz 560sec P3493 Code The reason of 1991 Mercedes-benz 560sec P3493 OBD-II Fault Code Check is P3493 Cylinder 12 Exhaust Valve Control Circuit/Open.

1991 Mercedes-benz 560sec P3493 Possibble Fix Ways :

A failing oil pump can cause what's called oil starvation, which is almost always fatal to any engine. Overhead cam engines are especially at risk, because the cam and valve train are farther from the pump than they are in pushrod engines. Oil should be of a proper viscosity, which means it needs to be light enough to move quickly.

If your vehicle failed a P3493 1991 1991 Mercedes-benz 560sec test and the P3493 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses P3493 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look P3493 1991 1991 Mercedes-benz 560sec: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

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