Gm 3 Bar Map Sensor Calibration

May god s grace bless you in the lord jesus christ. Description map sensor gm 3 bar manifold absolute pressure sensor standard compatible with the ms3pro and all flavors of the megasquirt ems microsquirt ems. Map sensor assembled in the usa unlike the current delphi production.

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Looking at the calibration curve for the custom 3 bar it appears that holley stopped at 26 8 and 4 5v for the 12592525 sensor.

Gm 3 bar map sensor calibration.

To wire a gm sensor 3 bar sensor you need to. Common gm linear calibration. Call holley tech and ask them if their 3 bar map sensor shares the same calibration as the ls1 3 bar map sensor. 2 5 bar max map sensor support calibration capability for gm 0 5v linear map sensors new boost ve table from 105 kpa to 255 kpa 2 5 bar or 22 5 psi boost retains stock ve table resolution in non boost regions.

Calibration is linear with 1 1 kpa at 0 volts and 315 5 kpa at 5 volts. Run a single sensor output wire from pin 1 square of the map holes on the pcb to a free pin on the db37 use 25 which can be connected by running the sensor output wire you just installed to x11 on the pcb then run a wire from this pin 25 on the db37 to pin b on the sensor. If in between two custom map sensor options such as 3 5 bar you must select the higher of the two 4 bar and correctly calibrate it. It is possible that detroit is.

In the future i suggest purchasing non holley sensors from stores that can provide the calibration data. Formula for the gm 3 bar map sensor is v 8 94 14 53 i have no idea why it s 14 53 and not 14 696 rounds up to 14 7 but it works out on gm s chart every time. 20kpa absolute 0 300v 300kpa absolute 4 900v mechanical connection via 3 16 hose connector nipple the linear calibration for this 3 bar gm delphi map sensor is already pre loaded on many aftermarket ecus including the range of link g4 and vipec i series ecus. 2 5 bar map speed density ls2 v8 e40 ecm this enhancement contains the following features.