Engine Mounting map sensor in car?

91GTstroked · Apr 2, 2020

Hey guys,

I have a couple gauges I'll be installing. One being a vac/boost gauge. I'm not running forced induction currently, but figured being able to read vacuum for now is a good thing.

The map sensor is recommended that it be facing down. I'm thinking I'd rather have it installed somewhere behind the dash, stereo or glovebox. Anyone do it this way?

That way I only need to run a vacuum line to the intake or vacuum tree.

Thanks.

a91what · Apr 2, 2020

it can be installed anywhere you want really, they suggest it facing down so condensation does not fill the sensor and cause an internal short.

91GTstroked · Apr 2, 2020

a91what said:
it can be installed anywhere you want really, they suggest it facing down so condensation does not fill the sensor and cause an internal short.

Thank you. That's what I thought. Might just secure it facing down with zip ties.

jrichker · Apr 2, 2020

91GTstroked said:
Hey guys,

I have a couple gauges I'll be installing. One being a vac/boost gauge. I'm not running forced induction currently, but figured being able to read vacuum for now is a good thing.

The map sensor is recommended that it be facing down. I'm thinking I'd rather have it installed somewhere behind the dash, stereo or glovebox. Anyone do it this way?

That way I only need to run a vacuum line to the intake or vacuum tree.

Thanks.

If you are using the stock computer, 89 and later models do not use a MAP sensor. Instead, they use a BARO sensor and it does not connect to the manifold. The BARO sensor vent to open air and senses Barometric pressure.

91GTstroked · Apr 2, 2020

jrichker said:
If you are using the stock computer, 89 and later models do not use a MAP sensor. Instead, they use a BARO sensor and it does not connect to the manifold. The BARO sensor vent to open air and senses Barometric pressure.

My gauge came with a map sensor for the gauge itself. That's all it's used for.

jrichker · Apr 3, 2020

91GTstroked said:
My gauge came with a map sensor for the gauge itself. That's all it's used for.

That sounds like a boost pressure gauge instead of a gauge to connect to the engine control computer.

91GTstroked · Apr 3, 2020

jrichker said:
That sounds like a boost pressure gauge instead of a gauge to connect to the engine control computer.

That might be, but they call it a map sensor for some reason.

Boostedpimp · Apr 3, 2020

I don't think you need a map sensor for that gauge. Put a t in one of your vac lines and run to the gauge adn start the car. Map sensor senses engine load and generates a signal that is proportional to the amount of vacuum it sees from the intake manifold for the ECU to use to make adjustements to ignition timing and fuel

Engine Mounting map sensor in car?

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