Cheapest preferred map sensor as of 10-26-20 - GM 4 Bar

[denmah]

within the last year or so people were posting about this AC delco stock chevy part number
18$ 4 bar map sensor - ACDelco 12643955 GM Original Equipment Manifold Absolute Pressure Sensor

you can find it on rock auto, and amazon and also on sites like Warr_performance with the pigtail and crimp pinouts etc

also interestingly enough it has a non-linear setup from what i have tested many times

4 Bar MAP Sensor #25203477 and Connector Kit - WARR Performance WLS079 - WARR Performance LLC

This kit includes a 4 Bar MAP sensor, GM #25203477 and the correct connector with terminals to wire it into your harness. The terminals do require crimping with a compatible tool. These ship free anywhere in the US! p/n WLS079

warrperformance.com

Click to read more...

 

[denmah]

Map​

Custom 4 bar​

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Calibration Curve​

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Map Pressure​

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-14.5​

-10.9​

-7.3​

-3.6​

0​

4.3​

8.6​

12.9​

17.1​

21.4​

25.7​

30​

34.1​

38.2​

41.7​

46.4​

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Voltage​

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0.5​

0.76​

1.02​

1.28​

1.54​

1.89​

2.24​

2.59​

2.95​

3.3​

3.65​

4​

4.13​

4.25​

4.38​

4.5​

 

[denmah]

added excel sheet in a ZIP for easy copy paste, it made me ZIP it.
i also pasted chart, and it shows up in chart, but does not copy paste. leaving it anyway