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erikboettcher
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Last seen: 2 months 1 week ago
Joined: 07/16/2014 - 08:19
How to Re-calibrate MAP/PSIa Sensor

Ok this is likely a stupid question so I apologize ahead of time but I can't find any info on it.

I bought a -30 to 35 PSI Boost Gauge specifically the 30-4406
https://www.aemelectronics.com/products/gauges/digital-gauges/boost-display-gauges

Worked great for a couple years and then the sensor went bad and wouldn't read vacuum at all so I ordered a replacement specifically the 30-2131-30.

https://www.aemelectronics.com/products/sensors-connectors-accessories/map-pressure-sensors/brass-map-psia-sensors

Now I may not be all that bright on some days but when I installed this thing it said my 2.0T was pushing 35+ PSI of boost.  I can assure you if i was pushing that my engine would have 4 holes in it that shouldn't be there.  So I think the zero is just off.  There is nothing fancy about this setup just a T-tap off of a boost line and straight to the sensor with the output going to the gauge only. 

Is there a way to recalibrate this at all?  I have an OBDII reader so I can get the boost pressure from the stock MAP sensor for comparison.

Thanks for the help,

Erik Boettcher

AEM_JG
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Last seen: 14 hours 35 min ago
Joined: 06/03/2016 - 08:12
You need 30-2131-50 sensor

You need 30-2131-50 sensor for that gauge. The 30-2131-30 is a 30psia sensor, which would output a maximum of 15.3 psi.

erikboettcher
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Last seen: 2 months 1 week ago
Joined: 07/16/2014 - 08:19
Well i feel dumb now but oh

Well i feel dumb now but oh well.  Thanks for the help its greatly appreciated.