derFix Features

Porsche Oil Scavenging Systems

Porsche Oil Scavenging Systems

If the quantity of oil being burned is excessive it can quickly foul those new plugs. The result may not be just a misfire warning, but now possible catalytic converter efficiency codes and maybe lean mixture codes.

The DVOM and Signatures

The DVOM and Signatures

Gone are the days of using a DVOM to check on/off switches and the devices they control. There’s more information than you may think in the digital electronic signatures of today’s advanced on/off devices. Here’s what those numbers actually mean.

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