Useful guages
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Not sure, but you would need a MAP (manifold absolute pressure) sensor, which is not part of the D2 engine management. One of those phone apps reported oil PSI to a member, but that isn't possible either. Probably use of some data sent in a format the app could not recognize, just like "Rover specific" OBDII codes. And the app "ran home to momma".
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Vacuum gauges can be the most useful tool in your garage once you learn how to read them. They can give you the overall condition of the internal engine parts/seals, and identify problems before they start to get bad (i.e., leaking IM, sticking/leaking valves/guides, and much more). Basically, they are reading the vacuum that os created behind the butterfly in the IM at idle. kf baccum is too low at idle, you have a leak. They also gove you information on how well your sustem returns to normal vacuum after WOT an so on. Probably worth looking in to if you want another gauge...
Last edited by willrok13; 04-06-2013 at 06:52 AM.
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