[Vinny Tortorella]

Hi recently purchased an SC Project CRT and installed on my Icon - sounds amazing - however engine running lean as per diagnostics. Went ahead and bought an AFM unit for SC but instructions that came with it are limited. Has anyone had experience installing an SC Project AFM on a Scrambler who can help?

Would love to know where the O2 sensor connector is... and how to plug this thing in not confusing it with the lambda sensor...

 

[TC3]

Just post a message on their fb page as they have good communication

Sent from my SM-G930F using Tapatalk

 

[pfmtrumpy]

From their website "This added unit changes the parameters related to temperature- air sensors" so I would assume it does the same as a boosterplug and change the temperature inputs. I believe the connector is here:

I think the only o2 sensors are the lambda sensors in the exhaust.
There is a MAP sensor:

but that's about intake air pressure so I don't imagine you'd monkey with that.
That's just what I reckon - never played with these things before so you'll want to verify.

 

[Vinny Tortorella]

Thanks TC3 - have posted an now waiting to see their reply. I have also contacted the SC project guys in Australia - they seemed pretty awesome to deal with so hopefully they have some advice.

Cheers pfmtrumpy, I'll take a look when I get home... nice job on the screenshots. Once I have it sorted, I'll post some images. I imagine I'm not the only one buying CRT's and suffering from poor low end performance...

 

[Vinny Tortorella]

So looks like I had some success, I scoured online documentation and came across something about a 'boost plug' that attaches to the temperature sensor on the Scrambler- this sounds the same to me! The connectors look exactly like the ones SC supply!

Heres what I did:

The process required to unbolt and lift the tank to locate the AIT sensor on the right hand side. It was hidden beneath a bunch of connectors. It's kind of attached to the top of the right of the airbox. I disconnected the original connector and bypassed it using the supplied AFM connectors.

Then I routed the wire under the tank neatly towards the rear under the seat. I stashed the control module in the space for the toolkit (next to the toolkit) - I didn't want it up near the dash.

Bolted the tank back down to original position...

...and the result seems to be pretty good upon startup, sounds richer and throttle is sharper - will take it for a ride tomorrow.

Also noticed the temp gauge now reads 2 degrees celsius, about 20 degrees less than the actual temp outside. But factory specifies this will occur.

I have the AFM controller set between 7 and 8 on the turn dial.

I'll post another update with more results.


Let me know if this helps anyone!!

 

[ScramblinGraham]

What did the AFM cost? I haven't seen it for sale

 

[Vinny Tortorella]

What did the AFM cost? I haven't seen it for sale

$260 AUD

 

[Vinny Tortorella]

So in my last post I had the AFM set between 7 and 8... turns out this was a little too much fuel and the bike was getting away from me almost where you couldnt tell the difference between 3rd and 4th gear. I also noticed in the first few hundred metres of the ride the bike stuttered (almost stall like) when accelerating in 2nd gear at around 20kmh.

I set it back between 4 and 5 and it seems to be a little more settled. I did reduce it right to 2 and it just felt like it lost about 10-15hp so up it went again. Will keep testing.

Hope this helps! happy scramblin!

 

[Vinny Tortorella]

I have since removed the crt slip on and AFM module. Just too damn loud on the highway and was making the bike run pretty bad off the line, not to mention hot as well at low speed.

Bike is running smoother with stock exhaust, sure it sounds like a sewing machine but its back to normal.

 

[Max Kool]

I don't know what the stock Scrambler exhaust sounds like, but the Termi Evo sounds darn nice.

Legally silent, but no vacuum cleaner. And the odd rumble/pop on the overrun.

 

[Ramarren]

I have since removed the crt slip on and AFM module. Just too damn loud on the highway and was making the bike run pretty bad off the line, not to mention hot as well at low speed.

Bike is running smoother with stock exhaust, sure it sounds like a sewing machine but its back to normal.

This has been all too common in my experience with aftermarket exhaust systems. I went nutty with airbox mods, various silencers, and reprogrammed chips for my 907IE back in the 1990s; finally got it to run the way I wanted with a stock airbox where I'd opened up the top with a 2" additional opening, a K&N filter, and a set of Staintune mufflers with a very very lightly modified version of the stock map in the ECU. It had a quiet but nice exhaust BLAAT! and ran cleanly from idle to redline.

The Scrambler FT came with the Termignoni dual outlet muffler and already makes a nicely subdued BLAAT!—for me anyway—and makes fine power already. Don't really need more power... It runs lean on the low end and makes drivability off the line funky. I'm looking to get the low end drivability cleaned up a little more with a Rexxer User ECU tool. That just arrived: I've initialized it, read the stock ECU map, and sent the file off to them to have the custom one made. Hopefully, their reconfigured map will do the job in one try.