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Stelvio PC-V/AutoTune install

GTM®

GTM®

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GT di Razza Pura
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Stelvio Install Guide for the PC-V and AutoTune module

Notes:

1. Remove seat.

2. Lay the PC-V on the airbox and route the PC-V wires to each side throttle bodies. On the small tank models, plastics must be removed. On big tank models, simply unbolt the battery hold down, and slide battery back with the rubber tray.
The side with the single grey wire goes to the right side (on bike) Throttle Position Sensor (TPS)/injector body.


3. Disconnect the injector plug by pushing down on the wired clip and pull off:


4. Next unplug the TPS plug. This is the plug that sits atop the right side throttle body. The plug (shown below) is a three-wire plug *NOT* four wire. Once found and unplugged, locate the red wire in the TPS plug, and fasten the Posi-tap connector to this wire as shown below. Re-connect TPS plug when done.


5. Install the injector plugs next. Male to OEM connector and female to injector from the PC-V harness:
Be sure that all plugs are routed away from high-heat sources and free of throttle cable and linkage.


6. For those installing the AutoTune module (ONLY WITH GTM ECU FLASH), remove the stock 02-sensor, and install the new Bosch wide-band sensor into the exhaust. Connect the AutoTune lead (to the new 02-sensor) and run/fasten the wire alongside of the others as shown below, then up and between the air-box and frame rails. The fused connector/plug from the new sensor can be zip-tied to the bottom of the frame. Allow some slack in the cable from the sensor. Be sure it's clear of the swingarm pivot/pinch points.


7. AutoTune requires an ignition key switched 12v source - The tag light wire is a good one. This is best found under the right small side cover shown below using the supplied Posi-tap connector - verify with a voltmeter for battery voltage when key is on, and zero when off.

IMG 0435

8. Next install the six (6) colored 02-sensor wires into the AutoTune unit as described in the provided instructions. You can (re-)connect the supplied jumper cable from the AutoTune to the PC-V at this time, and also all of the rubber plugs (screw holes and ports) into both PC and AT units. Both the PC-V and the AutoTune can be grounded to the battery ground. Be sure to route both the PC-V and AutoTune harness so that they are clear of pinch points. Shown below is both units with the GTM CNC air-box ring installed.

On the 2010 Stelvio, PC-V wiring needs to be routed along the left side of the battery. Placement of the PC-V/AT is completely up to you, just be sure it clears the seat bumpers and related. If the GTM air box ring is used, on the back of the air box behind where the ring leaves the air-box exposed is achievable.

9. Re-install all body parts, checking to be sure all connections are free and clear of high-heat and pinch points. I'll post on the Forum on the operation of both PC-V and AutoTune.

10. Ride, and note any problematic areas... Retrieve, save and send the map to us (if purchased from us) for us to tweak.
 
I can tell you the transformation that the PCV and AT make on this motorcycle is night and day from OEM. From idle to under load, the power delivery is that much more smooth and noticeable. I personally think the kit is worth every penny and then some.

Thank you, Todd, for installing it. And more importantly, thanks for the air box ring kit and valve adjustment that you performed, that made all the difference in the world.

Oh, and for the others, if you plan on taking your bike to GuzziTech, make sure you make arrangements to have a new rear shock installed......WOW!

Take good care.
 
oalvarez said:
I can't tell you the transformation that the PCV and AT make on this motorcycle. Night and day from oem.
Thank you, Todd, for installing it. Oh, and for the others, if you plan on taking your bike to Guzzitech, make sure you make arrangements to have a new Penske or YSS rear shock installed......WOW!
Click to expand...
Thanks Obie, for the post and business!
 
I was finally able to get some time to install the PCV/AT. The bike runs much better in conjunction with Todd's fuel map! I created instructions on how I installed the set-up using some of Todd's language/instructions and some of my own.
 

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  • PCV Install Instructions_2015 Stelvio.pdf
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I wanted to show this picture of where I tapped into switchable 12v for AutoTune. There is a connector on the right side of the Stelvio right next to the airbox. It is milky, white plastic adapters with a slightly pointed side. You will see two lines going into one of us sides, and a green line going into another side. Tap into the green one. Everything seems to be working!
 

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  • IMG_5211.jpeg
    IMG_5211.jpeg
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Last edited:
A few notes from my install:

The connectors on the new O2 sensors have little mounting pins, but they are removable; I recommend you take them off so it is easier to snake them through the bike. You just life the right side there off of the notch it locks onto. This picture is with is partially out so that you can see where it locks onto the connector.
IMG 5190

I was able to snake the left sensor around the frame so that the wire went cleanly into the frame. First, I put the O2 sensor under the frame just above the left throttle body:
IMG 5184
 
Then you slide it back so the connector can clear the rubber seat support and drop down next to the airbox, which will then allow the sensor to drop to the bung.
IMG 5186
 
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