turboglenn
15+ Year Contributor
- 6,375
- 111
- Nov 5, 2007
-
RIpley,
West_Virginia
Man, I think you guys are way over complicating the MAP sensor. the map sensor as a whole is much less complicated than trying to calibrate the MAF meter from the DSM in ECMlink.
In the dealer manuals I have, and seminars i have attended to be able to be labeled a "certified" haltech dealer/installer, the only "rules" for mounting a MAP sensor are as follows. (and i'm grabbing the manual to copy verbatim from)
Then notes from the seminars i've attended mention only the following.
1.) do not share a vadcum line via "t" fitting with anything that has a diaphram or moving part actuated by vacum/boost pressure such as a BOV or wastegate. And keep the lines as short as possible
2.)Keep The vacum line as short as possible.
3.)If it's not possible to give the sensor a dedicated line from the manifold, use a seperate vacum amnifold mounted to the firewall that has a feed line with a larger inside diamter than the accumulated diameter of the hoses attached to it (avoiding both wastegate control and blow off valve being fed from this manifold)
4.) One of the few places you can reliably "T" the map sensor into is the fuel pressure regulator (which is often where boost gauges are "T'd from as well )
In the dealer manuals I have, and seminars i have attended to be able to be labeled a "certified" haltech dealer/installer, the only "rules" for mounting a MAP sensor are as follows. (and i'm grabbing the manual to copy verbatim from)
haltech installation maual said:The MAP sensor is usually mounted high on the engine bay firewall or inner guard using two
screws and with the hose nipple facing outwards. Connect the sensor to the inlet manifold via
a short length of vacuum hose and fasten with either hose clamps or nylon cable ties. Connect
the sensor to the main wiring harness using the appropriate plug. (For 1 Bar sensors the plug
is green, for 2 and 3 Bar sensors the plug is orange). Avoid mounting the sensor below the
level of the fuel injectors, because fuel may collect in the vacuum hose and run down into the
sensor. The sensor assembly is weather-proof but it is good practice to mount the sensor in a
protected position away from moisture and heat.
1.3.2
Then notes from the seminars i've attended mention only the following.
1.) do not share a vadcum line via "t" fitting with anything that has a diaphram or moving part actuated by vacum/boost pressure such as a BOV or wastegate. And keep the lines as short as possible
2.)Keep The vacum line as short as possible.
3.)If it's not possible to give the sensor a dedicated line from the manifold, use a seperate vacum amnifold mounted to the firewall that has a feed line with a larger inside diamter than the accumulated diameter of the hoses attached to it (avoiding both wastegate control and blow off valve being fed from this manifold)
4.) One of the few places you can reliably "T" the map sensor into is the fuel pressure regulator (which is often where boost gauges are "T'd from as well )