S&S Cycle Barometric Pressure Sensor Relocation Kit - Manual (Page 3)

3
Picture 3
Picture 2
3- Most complete engines from S&S will include a MAP sensor already installed in the manifold. See Picture 2. If this is the case, you may proceed
with Step 7. If not proceed with the following steps to install one.
4- Verify the location for mounting the MAP sensor. Most S&S manifolds are equipped with a hose fitting or machined boss for the MAP sensor.
The mounting must be a location downstream of the throttle plate(s) and must be at or near the top of the manifold. For independent, dual
runner systems, this must be located on the rear cylinder’s intake manifold. See Picture 3. If your intake system is not equipped with the proper
hardware for attaching the MAP sensor, proceed with the next step, otherwise, you may skip to Step 6.
MAP Sensor
MAP sensor vacuum hose
to rear manifold hose
fitting in all independent
runner applications.
5- Follow the instructions below for installing MAP sensor and hose fitting on the intake manifold based on the type of system:
a- For common runner systems, See Picture 2. The MAP fitting must be located at the top of the manifold. We recommend finding a central
location where the manifold is relatively thick and the MAP sensor will not interfere with other components. Use the supplied #13 drill bit
to drill a hole in the top of the manifold. Do not allow any chips to fall in to the engine. Press the supplied hose fitting into the manifold.
b- For independent, dual runner systems, (See Picture 3) use the supplied #13 drill bit to drill a hole in the top of the rear manifold. Do not
allow any chips to fall into the engine. Press the supplied hose fitting into the drilled hole.
6- Install the Barometric Pressure Sensor on the intake manifold. This will make the Barometric Pressure Sensor function as a MAP sensor.
a- If your manifold has a machined boss for accepting the MAP sensor directly, be sure that the orange, OEM rubber seal is installed on the
MAP sensor and install the sensor in the machined boss. Be sure to use appropriate mounting hardware for your manifold to secure the MAP
sensor. Failure to do so may result in a vacuum leak.
b- If your manifold has a hose fitting for attaching the MAP sensor, first remove the orange, OEM rubber sealing grommet from the MAP sensor.
Then, cut approximately 2" from the supplied hose. Use the 2" section of hose to attach the MAP sensor to the hose fitting. Attach a cable tie
around each end of the MAP hose and tighten to secure the hose to the MAP sensor and fitting. Be sure that the MAP sensor is installed with
the pressure port of the sensor facing down. See Picture 3.
NOTE: Be sure that the MAP sensor is installed with the pressure port facing down. This is important for preventing the buildup of moisture in the sensor.
Also, do not tap into any engine breather/vent lines that may be attached to the manifold. Doing this, may result in sensor contamination and/or poor
manifold pressure signal.
MAP Sensor