Ls Map Sensor Wiring Diagram

The wire in painless performance kits runs a little larger than the standard.

Ls map sensor wiring diagram.

This is a discussion on map wiring within the computer tuning forums part of the lsx technical help section category. Function 1 blk 451 pcm ground 2 lt grn 1867 12 volt reference ckp pin c 3 pnk blk 1746 fuel injector 3 control. This will allow the computer to supply a reference voltage to the map sensor. Primary wire is typically an 18 gauge wire and is the most common wire found in wiring harnesses.

The larger wires that feed heavy draw circuits are typically 14 to 12 gauge. Checking for reference voltage. Map sensor pin c 49 50 not used 51 dk blu 496 ks 1 signal front sensor pin a. The primary wires are 16 gauge with 12 gauge for heavy draw items such as the headlights.

1999 02 ls1 pcm pinouts camaro firebird corvette similar pcm connector blue pin wire color circuit no. I need to wire a ls3 map pigtal onto my ls1 harness does anyone have the diagram for the ls3. The map sensor uses a three wire connector. Turn the ignition key to the on position but don t start the engine.

All that is required is a vacuum hose from the intake manifold plenum to the sensor. The early gm map sensor top has a provision for being mounted just about anywhere it fits.