Jump to content

Map sensor wrong readings

Islam fouad

Recommended Posts

I have link monsoon with 4 bar map internal sensor , i have a problem with its readings , it reads on idle 4.4 psi and when i start to move it increases to 17 psi , btw my boost solonoid adjusted to max 12 psi,

1- I’m connecting a seprated vacum line direct from the intake manifold to the ecu

2-  calibrated on zero rpm

3- connecting on analogue volt 5 

thanks in advance :)

Link to comment
Share on other sites

Looks ok to me. idle is about 30kpa, and under throttle it jumps up to about 180kpa (ie 80kpa/11.6psi of boost).

It looks like you're struggling to hold boost at this level though as it tapers off over a few seconds, but your MAP and MGP numbers look accurate.

I'd guess that what you are seeing is that the metric>imperial conversion for MAP is working correctly, but its not "normal" to see psi in absolute terms. 30kpa is roughly 4psi, but normally you'd expect to see this as -10.5psi MGP or -22inches of mercury. Remember that 0 psi on a boost gauge (MGP) is 14.7psi absolute pressure (MAP)

Link to comment
Share on other sites

  • 2 months later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...