Holley 3 Bar Map Sensor Wiring

09 12 2016 12 24 am 2.

Holley 3 bar map sensor wiring.

Map sensor wiring. Part 558 416 will be required when using a holley efi system. 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. This sensor will handle applications up to 25 lbs.

This manual contains information and diagrams related to wiring most holley efi products including ecu s ignition systems nitrous. They re available in 1 2 and 3 bar models. 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. Brass pressure sensor used for a boost gauge reference information for knowing manifold pressure not for ecu calibration.

If i want to use a holley 3 5 or 5 bar map sensor where is the best place to run it and how do i wire it. Holley efi ls main harnesses have a map sensor connecter designed for use with an ls1 2 style map sensor. 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. They all share a common pinout although the connector keying may be different.

Ac delco 12643955 4 bar 0 4 5v map sensor follow us on instagram honeybadgerobs alexchase154. 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. View profile view forum posts view blog entries administrator join date dec 2009.

Map sensor information for the ecu calibration crucial information for the ecu. Stainless pressure sensor caliper use a ss pressure sensor where you need exact details of the pressure. 3 bar map sensors can measure up to 44 1psi which translates to 29 7psi boost from a turbo supercharger. The pressure inside the intake manifold is an extremely important input to the ecu.