On the other hand, OBDII is a great thing as it is a standard and open interface that makes it a helluva lot simpler to get data out of your car. There are caveats to it, such as some faults that are due to bad sensors rather than anything wrong with the vehicle. But getting a code that says "misfire in cylinder #4" gives me an immediate point to jump to in diagnosing the problem. Without that information, I'd be wasting time and money swapping plugs and wires or running compression tests just to figure out what cylinder is causing the problem.
fl4tlander13 karma
On the other hand, OBDII is a great thing as it is a standard and open interface that makes it a helluva lot simpler to get data out of your car. There are caveats to it, such as some faults that are due to bad sensors rather than anything wrong with the vehicle. But getting a code that says "misfire in cylinder #4" gives me an immediate point to jump to in diagnosing the problem. Without that information, I'd be wasting time and money swapping plugs and wires or running compression tests just to figure out what cylinder is causing the problem.
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