Holley 3 Bar Map Sensor Wiring

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 3 bar map sensor wiring. The pressure inside the intake manifold is an extremely important input to the ecu. Stainless pressure sensor caliper use a ss pressure sensor where you need exact details of the pressure. Holley carburetors have powered every nascar cup team and nearly every nhra pro stock champion for four decades. 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. 3 bar map sensors can measure up to 44 1psi which translates to 29 7psi boost from a turbo supercharger. Now holley efi products power these cars and are dominating the performance world. View profile view forum posts view blog entries administrator join date dec 2009.

Brass pressure sensor used for a boost gauge reference information for knowing manifold pressure not for ecu calibration. 09 12 2016 12 24 am 2. 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.

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. Holley has been the undisputed leader in fuel systems for over 100 years. They re available in 1 2 and 3 bar models. They all share a common pinout although the connector keying may be different.

Part 558 416 will be required when using a holley efi system. Also great for use with ls hi ram intakes that require an ls3 map sensor. Whether your engine has forced induction or is naturally aspirated these holley map sensors will keep your engine performing at its best. Ac delco 12643955 4 bar 0 4 5v map sensor follow us on instagram honeybadgerobs alexchase154.