nytro idle adjustment screw

[johnelway]

Null or zero your throttle position by letting the sled thoroughly warm up while hooked to your laptop and go to PC tools, calibrate, hit reset button then open (WOT) throttle quickly then release and look for values close to 00.000 in window. It's worth a try.

just did what you said.

i don't understand what you're talking about with 00.000 value.

i'm at like 0.650 idle and 3.3XX at WOT

it is normal?

 

[canoehead]

Sounds close to being null. The values are correct at min and WOT. Check for a bent pin possibly, this is a good one. I'm almost thinking you have a cracked intake/head.

 

[Dodge Ram]

Sounds close to being null. The values are correct at min and WOT. Check for a bent pin possibly, this is a good one. I'm almost thinking you have a cracked intake/head.

That would give you your vacuum leak. The Cracked intake. How did the water test go??
Keep everybody up to date on your findings and this forum will get you riding. Alot of bright people on here.

 

[johnelway]

the sled is running fine... except for that little problem with very little throttle applied. it is possible?

i did not had chance to did the water test.

 

[Dodge Ram]

Ok, well let us know when you get a chance to do it.

 

[johnelway]

ok. little update.

Adjusted the throtle cable to oem spec. 3-4mm
i was around 7-8mm

Set the CO setting to -8 instead of +10.
The +10 was an attemp from my dealer first time i talked about the problem. i think they are really out on this one. They set it richer instead of leaner.

Now the sled is running fine at idle and seems to be more instant on the throttle response.
GOOD NEWS.

The only problem that left is the lag in the throttle when idle and instant WOT. it's popping then go from there.
like a 1 sec lag. But if little throttle applied(just before engagement) then WOT. No problem.

I think that's the best i can get from it. I think that this problem is related to nytro.

so subject is near to be closed. If you have some idea about the start lag. Let me know.

 

[johnelway]

how can i know if it's running rich or lean?

 

[dubla92]

NO engine likes to go from dead idle to wot! This is an unrealistic situation. When would you drive the sled like this? If you are trying to get the holeshot then you will bring the RPM up to just under engagement. You state at just under engagement its fine. So just drive it. You will chase the lag issue until you die! Glad to here it is running fine now.

 

[johnelway]

NO engine likes to go from dead idle to wot! This is an unrealistic situation. When would you drive the sled like this? If you are trying to get the holeshot then you will bring the RPM up to just under engagement. You state at just under engagement its fine. So just drive it. You will chase the lag issue until you die! Glad to here it is running fine now.

that's true. That was just a final situation. I know that's normal.

So thanks you guys for your help. now, i wish you a lot of fun this winter and a merry christmas!

 

[johnelway]

Also to add TPS problems, Harness issues, faulty temp sensors, exhaust donuts, will all cause idle issues.

Sorry to get back an old thread, Can you give me more info on how to test or replace the temp sensor?
any pics?