Having trouble with 3 bar map sensor
Having trouble with 3 bar map sensor I got myself an efi source 3 bar map sensor and tried using it yesterday. It's logging 15 psi at idle and when you push the throttle it goes down! My offsets are 305 and 10.33 which seems to be what everyone uses with this sensor. To I have to switch my 2 outside wires on the sensor?
12 Second Club
Joined: Jan 2003
Posts: 303
Likes: 2
From: Buffalo NY
The MAP sensor outputs in KPA not PSI there is math involved to convert from KPA to PSI which could be wrong in HP tuners.
Check the KPA value at idle and convert it to PSI on your own.
Also check for vacuum leaks.
Check the KPA value at idle and convert it to PSI on your own.
Also check for vacuum leaks.
Last edited by mshadow; Feb 10, 2016 at 09:49 AM.
Print out a wiring schematic and start chasing wires.
It's either wired incorrectly or the there is something wrong with PCM and it's not dropping the voltage on the 5v ref circuit.
It's either wired incorrectly or the there is something wrong with PCM and it's not dropping the voltage on the 5v ref circuit.
