So if all goes as planned this weekend I'll be installing an oil pressure gauge and a water temp gauge on the driverside A pillar. Does anyone know any other useful gauges to add?

 

Voltmeter? New fuel gauge?

 

Other than those listed... Vacuum gauge? Could be useful.

 

ooo the volt meter is a must, i forgot about that one... and my fuel guage just goes from empty to almost empty

My knowledge of the vacuum system on the vehicle is limited, I know it shows up on my ultra gauge but what is it reading ??

 

Vacuum can't show up on UG as there is no sensor for it on a D1 or D2.

 

Thats odd. Torque on my phone says otherwise but maybe it's calculating it based off some other sensor? It is directly related to braking/gas. But it doesn't matter too much.

I'll be adding a water temp gauge, oil pressure gauge and a volt meter. Thank you guys!

 

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".

 

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...

 

A vacuum gauge isn't a "moment in time" gauge however, like all the others are. You have to establish a baseline under varying operating conditions then use that baseline for comparisons during normal operation.

 

Buick used to have them as part of the cluster