Extra Gauges - Which Ones?

[toyota_mdt_tech]

The max boost pressure a stock MAP Sensor will real is 38lbs of pressure.

Even with being stock, with a good pull, you should see max boost pressure.

OK, Corkster, I have seen mine go over 20, but not by a bunch.

Not under any towing loads either.

I was looking at some Bank's sensors, and they had one for 0-25 and another going much higher.

My truck is 100% stock except for monster ram intake, muffler delete, and 5" pipe after the treatment system back.

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[Corkey]

There are tuning issues with the 10 map sensors using the MM3, or at least there used to be.

If you can't see max boost or even 30 lbs, I think you have something going on.

How long ago did you do your intake tubes?

You might get fortunate and have a leak somewhere simple.

If not, check on the A\D values for the actuator with your scan tool, as they should be close to each other.

Has your fuel mileage gone far south?

https://www.enginelabs.com/news/unde...fi-university/

It's more practical with just a simple pod gauge to verify higher boost pressure than the 38lbs with a factory Map sensor will read.

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[toyota_mdt_tech]

Corkster, I have just installed the igauge and cannot load it.

I can set it to record max and even min, too.

There is no loss in power; I bought it new, and it feels strong still, like day 1, 55K miles on it, economy same, pulls same.

I got after it, but as the engine RPMs increased, the load went away as I accel, so I could not get a good peak number.

I probably won't get a good peak reading till spring when pulling my trailer over three mountain passes to the cabin.

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