Gm 3 Bar Map Sensor Wiring Diagram

The map sensor uses a three wire connector.

Gm 3 bar map sensor wiring diagram.

This will allow the computer to supply a reference voltage to the map sensor. 4 6 5 from 841 votes. If you run into an electrical problem with your gmc you may want to take a moment and check a few things out for yourself. For supercharged or turbocharged engines a 2 bar map gm 12569241 supports up to about 14 7 psi boost and a 3 bar map gm 12223861 supports up to about 29 7 psi boost.

Checking for reference voltage. 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. Wiring diagrams gmc. Pdf epub ebook category.

Before you dive in with a multi meter you will want to obtain a free wiring diagram for your specific model you may need to locate a specific color wire and its exact location. It is possible that detroit is slightly above sea level and you can use 12 11 in the formula for 1 mile above sea level. Next video will show the installation of the hp tuners 3 bar enhanced os. Turn the ignition key to the on position but don t start the engine.

Installing a 3 bar map sensor to get ready for boost on my 2000 chev silverado 1500 ls turbo truck project with 411 ecu. It is possible that detroit is slightly above sea level and you can use 12 11 in the formula for 1 mile above sea level. These 2 and 3 bar map sensors are a direct fit to the lt1 and ram jet 502 intake manifold but because the connector key configuration is not the same the 1 bar green. You need to identify the signal reference and ground wires using your vehicle repair manual.