Stigapex
Suspended
Hello
My Apex XTX is running to fat. The MCX 290 kit it's just installed.
The sled hesitate in acceleration, and when the sled idle it's not clean. When slow-running it's fat, but in high speed with much boost, I don't feel anything wrong.
Could the problem be that I have capseled the air-intake, se picture.
I meen it's getting enough air, and no problem with enough boost. I'm reading around 1 bar.
Could it be something wrong with the MCX ecu ?
Is it possible to adjust the MCX ecu, without buying the unit from them, to a big price.
My Apex XTX is running to fat. The MCX 290 kit it's just installed.
The sled hesitate in acceleration, and when the sled idle it's not clean. When slow-running it's fat, but in high speed with much boost, I don't feel anything wrong.
Could the problem be that I have capseled the air-intake, se picture.
I meen it's getting enough air, and no problem with enough boost. I'm reading around 1 bar.
Could it be something wrong with the MCX ecu ?
Is it possible to adjust the MCX ecu, without buying the unit from them, to a big price.
Attachments
DooAssassin
Expert
Ive been looking too. I do know that there is a port to plug in a usb cable on the mcx box. But you need the software to program it(dealer has it). If anyone know let us know!
DooAssassin
Expert
D you have the hose going from the pressure sensor to the blow off valve? If so dissconnect it if you are below 2000 feet. All it does is add fuel that is not needed. It worked for me, im still running rich but not as bad with it connected. Just cap off the blow off valve side. ( the grease nipple that doubles as a bolt, it hold the blow off valve on).
gsxr
TY 4 Stroke Master
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- Feb 24, 2006
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- Snowmobile
- 2023 SRX
Do you have the chech valve installed backwards to the air pressure sensor ?
On the right side of the throttle bodies ? The kit supplies the check valve !!!
On the right side of the throttle bodies ? The kit supplies the check valve !!!
Stigapex
Suspended
The pressure sensor, as I know is inside the MCX ecu box, I don't know of any air pressure sensor.
The hoses I installed goes from MCX ecu, four hoses to Throttle bodies, one hose to BOV, one hose to fuel pump regulator.
And I' ve also installed a boost gauge beetween the hose going from BOV to throttle bodies.
As I see all hoses in this line has the same pressure.
There is also installed a "back-valve" on the hose to the OEM map sensor, because it can't stand the boost pressure.
All this done as MCX-manual describe.
I've picked off the capsling around the air-intake, so that's not the problem anymore.
Today I was a little test-run with my neighbours Doo Renegade XR1200 MCX255, and I hadn't a chance from start. It wasn't possible to drive very long, around 500 ft, but in that distance, I had not a chance.
Both of us have a 1,75" track, no studs. He 137" and I 144".
The hoses I installed goes from MCX ecu, four hoses to Throttle bodies, one hose to BOV, one hose to fuel pump regulator.
And I' ve also installed a boost gauge beetween the hose going from BOV to throttle bodies.
As I see all hoses in this line has the same pressure.
There is also installed a "back-valve" on the hose to the OEM map sensor, because it can't stand the boost pressure.
All this done as MCX-manual describe.
I've picked off the capsling around the air-intake, so that's not the problem anymore.
Today I was a little test-run with my neighbours Doo Renegade XR1200 MCX255, and I hadn't a chance from start. It wasn't possible to drive very long, around 500 ft, but in that distance, I had not a chance.
Both of us have a 1,75" track, no studs. He 137" and I 144".
gsxr
TY 4 Stroke Master
- Joined
- Feb 24, 2006
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- BRACEBRIDGE , ONTARIO
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- Snowmobile
- 2023 SRX
chech the back valve to the oem map sensor
if it is in backwards you will have your problem !!
if it is in backwards you will have your problem !!
Stigapex
Suspended
Is it possible to adjust the CO2, or is it adjusted of the MCX Ecu-box ?
rxrider
Jan-Ove Pedersen
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- 2014 Phazer XTX, 2013 Phazer RTX, 2008 Apex RTX, 2007 Warrior, 2006 Attak
Stigapex - Yes you can adjust the C0 from the instrument pod. Set them at -10 for each cylinder.
The MCX box is programmable.
PM me.
Jan-Ove
rxrider
The MCX box is programmable.
PM me.
Jan-Ove
rxrider
gsxr
TY 4 Stroke Master
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- Feb 24, 2006
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- 2023 SRX
Did you get running ok ?
Stigapex
Suspended
gsxr said:
I'm not satisfied, I've checked everything, all's ok.
The sled is running ok, but I feel that it's possible to get it much better with some adjusting, so I think the only way is to add the MCX-unit to the sled.
gsxr
TY 4 Stroke Master
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- Feb 24, 2006
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- Snowmobile
- 2023 SRX
Wow , we have 4 of these sleds running perfect ??
Call Eric and ask him , I have talked to him a few times , very good to help !
And he is in your back yard !!
ps is the map sensor check valve in backwards ?
Call Eric and ask him , I have talked to him a few times , very good to help !
And he is in your back yard !!
ps is the map sensor check valve in backwards ?
moto4all
Newbie
- Joined
- Aug 21, 2009
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- 6
Jona$
Master
Cant find any about a back valve in non of the install manuals. I have run as the pic above show and allways worked fine. So whats this
Stigapex
Suspended
gsxr said:
Runnig perfect ?
You are sure of that?
My sled is running very well, but perfect, no way...
I think it's to slow from start, but when the pressure is 15 psi, I'm not able to feel if the sled is running perfect or not, but I'm sure there are some hp's to find, with perfect adjusting.
Back valve to Map sensor ok.
Stigapex
Suspended
vmax4ever said:
On the t-fitting to the oem-mapsensor, there is a back-valve
