C0491 DTC For Porsche Boxster Type 986

Your Porsche Boxster Type 986 engine control system detects a problem, the computer stores the diagnostic trouble code C0491 in its memory. To figure out what is wrong with your vehicle you must first extract the C0491 DTC For Porsche Boxster Type 986.

To solve C0491 Porsche Boxster Type 986 problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the C0491 Porsche Boxster Type 986 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

C0490 DTC (Previous DTC Code)

( Next DTC Code ) C0492 DTC

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