Gm 3 Bar Map Sensor Pinout

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.

Gm 3 bar map sensor pinout. To wire a gm sensor 3 bar sensor you need to. 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. 0 4v is 20kpa 4 65v is 300kpa work the mx b and you ll find a map sensor linear of 329 41kpa and a map sensor offset of 6 35kpa. Holley products for gm s popular ls engine are dominating the ls scene as well.

In the vehicle specific repair book it s ground. That screen shot is showing the linear per volt. What happens if i overshoot and hit 29 plus psi. It s the same as part 0 281 002 437.

A 20 300kpa sensor that uses characteristic curve 1. Joined jan 15 2003 686 posts. Map sensor assembled in the usa unlike the current delphi production. The 3 bar map should go to 29 psi.

Gm 3 bar map sensor wiring help. Gm 12592525 3 bar map sensor my fuel table only reads to 26 8 psi. I checked a motors book that covers all vehicles from 77 83 and it says in the diagnostic section for map vac sensors that the pinout is a low what s that ground b output and c v ref is this the 5v or is this the ground. Calibration is linear with 1 1 kpa at 0 volts and 315 5 kpa at 5 volts.

I am about to install a gm 3 bar map sensor. My boost safety will stop it from going above 30 psi. I m gonna order a 3 5 bar map sensor but it may not be here before saturday and we have a race then. Scroll to page 3.

You need linear per five. 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. Discussion starter 1 apr 16 2006. Map sensor gm 3 bar manifold absolute pressure sensor standard compatible with the ms3pro and all flavors of the megasquirt ems microsquirt ems.

Posted in an existing thread in the gen 4 section but they weren t much help. Run a single sensor output wire from pin 1 square of the map holes on the pcb to a free pin on the db37 use 25 which can be connected by running the sensor output wire you just installed to x11 on the pcb then run a wire from this pin 25 on the db37 to pin b on the sensor. It is possible that detroit is. I am building a 02 lq4 with lsa heads and a ls3 intake and was wondering if the 12592525 3 bar sensor off the ls9 would be a plug and play with the correct harness using the custom 3 bar sd os on a 02 silverado pcm.

The gm map sensor is the same as msd 2311 1 bar map sensor.