Holley 3 Bar Map Sensor Wiring

This sensor will handle applications up to 25 lbs.

Holley 3 bar map sensor wiring.

Ac delco 12643955 4 bar 0 4 5v map sensor follow us on instagram honeybadgerobs alexchase154. View profile view forum posts view blog entries administrator join date dec 2009. Stainless pressure sensor caliper use a ss pressure sensor where you need exact details of the pressure. Now holley efi products power these cars and are dominating the performance world.

They all share a common pinout although the connector keying may be different. Brass pressure sensor used for a boost gauge reference information for knowing manifold pressure not for ecu calibration. This manual contains information and diagrams related to wiring most holley efi products including ecu s ignition systems nitrous. Whether your engine has forced induction or is naturally aspirated these holley map sensors will keep your engine performing at its best.

A22 cam sync input ignition bypass output b22 est 3 output cylinder 3 a23 map sensor input b23 est 5 output cylinder 5 a24 can lo b24 est 7 output cylinder 7 a25 wb1 vs b25 injector c output. Holley efi ls main harnesses have a map sensor connecter designed for use with an ls1 2 style map sensor. Also great for use with ls hi ram intakes that require an ls3 map sensor. They re available in 1 2 and 3 bar models.

This sensor will respond to changes in manifold pressures and relay the information to the ecu in the form of a voltage signal ranging from 1 5 volts. Map sensor wiring. Part 558 416 will be required when using a holley efi system. Holley carburetors have powered every nascar cup team and nearly every nhra pro stock champion for four decades.

Holley has been the undisputed leader in fuel systems for over 100 years. The 558 416 is an adapter harness that can be used to adapt any ls harness that uses an ls1 2 map sensor connection to an ls3 map. Map sensor information for the ecu calibration crucial information for the ecu. The pressure inside the intake manifold is an extremely important input to the ecu.