3 Bar sensor
- Thread starter SoCalSHO
- Start date
D
DJE624
Guest
It's supposed to be two small bolts on the manifold and a pigtail.
bpd1151
Active member
Since I had to swap out my factory 2bar, and replace it with the 3bar MapV sensor, I touched upon it's swap, and took a pic of it if memory serves me correctly, all of which is located in my 'How-To" on my Methanol Install.
Check there if need be. But as the 2 replies that precede mine, it is literally as simple as 2 bolts and a pigtail.
Sent from my DROID3 using Tapatalk 6
Check there if need be. But as the 2 replies that precede mine, it is literally as simple as 2 bolts and a pigtail.
Sent from my DROID3 using Tapatalk 6
D
DJE624
Guest
I was told by LMS that you could run 3-Bar with stock tune. I would still probably switch both at same time, either tuning or going back to stock. It's only another minute of time to swap them.
D
DJE624
Guest
Yeah, I looked at mine. It only has one torque screw. The other side just looks like a positioning stud.
bpd1151
Active member
There are two, separate, 2bar sensors.
One is located pre-throttle body, the other is located post-throttle body & is directly on the top of the manifold.
The one that requires replacing with the 3bar, is the 2nd one, directly on top of the manifold.
Shoman04, if your car was running like crap, it is most likely due to the fact that you swapped out the incorrect one.
Some model years had two torx screws holding the sensor in place, other model years had just one torx screw, along with a positioning stud.
Sent from my DROID3 using Tapatalk 6
One is located pre-throttle body, the other is located post-throttle body & is directly on the top of the manifold.
The one that requires replacing with the 3bar, is the 2nd one, directly on top of the manifold.
Shoman04, if your car was running like crap, it is most likely due to the fact that you swapped out the incorrect one.
Some model years had two torx screws holding the sensor in place, other model years had just one torx screw, along with a positioning stud.
Sent from my DROID3 using Tapatalk 6
crash712us
New member
You can not use a bar3 MAP sensor without a tune for it, your car will run like crap.
EcoBrick Bob
New member
Actually the sensor by the throttle body is a 3 bar sensor and is identical to the 3 bar I purchased from Torrie for his 3 bar tunes. Same #s and everything. It works as a Manifold Charge Temperature (MCT) sensor. The one on the top of the intake works as a boost (MAP) sensor. An upgrade to a 3 bar sensor is needed if your boost exceeds 15 psi.
bpd I too did what you did by putting the 3bar in the 3bar MAF sensor (the 1 before the throttle) and Bob is right P/N of the MAF is a 3bar sensor but the 2nd one is a different P/N and a 2bar and Andy (at LMS) said that the car will not run right with out a tune for a 3bar. Also the new XV1 tune mandate having a 3bar MAP to run.
EcoBrick Bob
New member
The stock MAP sensor is a 2 bar. The 3 bar sensor Torrie sold me to be used as a MAP sensor is identical (same part #) to the 3 bar sensor in front of the throttle body. Both read info and translate it into a voltage signal. ECM reads that signal voltage as it relates to the sensors purpose.
EcoBrick Bob
New member
Not necessarily... Only if you are planning on a more aggressive tune. And.. switching to a 3 bar sensor requires your tunes to be modified to accept the 3 bar data by the ECM.
