Idle rpm

[superb]

My 2015 Ltx Dx idles from 1450 to 1550 and sounds like it has a high lift cam in it. Is this normal?

 

[Glen1027]

My 2014 xtx idles at 1450 to 1550 after my ecm update. Before the up date it would idle at 850 to 1000 and it was to slow the sled would die out ever time I would come to a very quick stop. After the update it has not done it again I have tried.

 

[TD Max]

1800 cold cold dropping to 1500 when warm

 

[superb]

Thanks Guys.

 

[mbarryracing]

My 2015 Ltx Dx idles from 1450 to 1550 and sounds like it has a high lift cam in it. Is this normal?

My "new leftover" 2015 RTX does the same thing, varying idle swinging 100 rpm. It had the ECU reflash update in Oct when I bought it. I'd like to know if this is typcial or something I should look into. I kind of expect that an EFI controlled 4 stroke should idle smooth as silk, especially with electronic idle control?

 

[mbarryracing]

My "new leftover" 2015 RTX does the same thing, varying idle swinging 100 rpm. It had the ECU reflash update in Oct when I bought it. I'd like to know if this is typcial or something I should look into. I kind of expect that an EFI controlled 4 stroke should idle smooth as silk, especially with electronic idle control?

I have less than 500 miles on it and it's audibly noticeable when off the machine too, can hear it's hunting...

 

[super1c]

Normal!

 

[Mike P]

My 14 RT-X, 1800 rpm cold and 1520-1500 warm. Has MPI with almost 7k miles.

 

[cannondale27]

Normal lope we have been talking about for 5 years. It’s the tune but nothing other than a reflash or tuning with PCV will fix it. Just tell people it’s the Cam timing.

 

[mbarryracing]

Cool, I'm Ok with it then. My big 310 HP turbo Apex hunts a little too but not this much.

 

[Hurulau]

My -15 mcx270 viper start to idle roughly from 1000-2000rpm. Any ideas what cause that?

 

[blueironranger]

Mines smooth 90% of the time, purrs like a kitten. 10% of the time, usually after running hard and coming to a stop, it does the "cammed up" 1450-1550 thing.

 

[walter]

Was worried when I first did the turbo kit, did the same thing with the high cam sound but yeah normal, and sounds cool