09 800cfi won't idle down

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champyfz450

Well-known member

Jan 13, 2009

421

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28

Fort McMurray

• Nov 12, 2011

• #1

Guys I'm throwin this issue out there as I cannot find the solution to my problem. I have an turbo 09 800cfi motor in an iqr chassis that will not idle down, I tried everything that I can think of including a new tps sensor and harness but it still idles at 2000rpm. The issue started last year on my last ride, the sled wouldn't idle high enough to stay running but now after trying to work the bugs out it idles too high and won't even go into reverse. There is a boostwurx programmer on there, is there any way that a bum programmer could cause the erratic idle? the sled does start easy and it runs super smooth. Any help is greatly appreciated guys as my first trip is coming up soon. thanks

 

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sledstew

Well-known member

Nov 2, 2004

655

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Mandan, ND

www.themildtowild.com

• Nov 12, 2011

• #2

Maybe some ideas to help you along:

1)Spray some carb cleaner or something around your intake boots all the way back to the turbo and see if you are sucking air.

2)Check fuel pressure (not likely but possible)

3)My suggestion is to unplug the programmer and plug all your factory plugs together just to see if it idles. If it doesnt idle you obviously have fuel/air issues.

 

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champyfz450

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Jan 13, 2009

421

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Fort McMurray

• Nov 12, 2011

• #3

Thanks a lot stew. I'll try all those options asap

 

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champyfz450

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Jan 13, 2009

421

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Fort McMurray

• Nov 12, 2011

• #4

champyfz450 said:

Thanks a lot stew. I'll try all those options asap

Click to expand...

Fp does show its at 38psi

 

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sledstew

Well-known member

Nov 2, 2004

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Mandan, ND

www.themildtowild.com

• Nov 12, 2011

• #5

champyfz450 said:

Fp does show its at 38psi

Click to expand...

Ok then if thats correct I would plug in the factory ecu direct and see if it idles

 

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champyfz450

Well-known member

Jan 13, 2009

421

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Fort McMurray

• Nov 12, 2011

• #6

sledstew said:

Ok then if thats correct I would plug in the factory ecu direct and see if it idles

Click to expand...

Thanks again bud

 

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BB454

Free Member

Nov 26, 2007

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63

Salt Lake City

• Nov 14, 2011

• #7

idle

Inspect the thottle body adapters. Common problem.

 

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crashnbash

Free Member

Feb 8, 2008

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• Nov 14, 2011

• #8

I'm sure you already checked, but when you changed your tps did make sure it was set correct?

 

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champyfz450

Well-known member

Jan 13, 2009

421

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Fort McMurray

• Nov 14, 2011

• #9

crashnbash said:

I'm sure you already checked, but when you changed your tps did make sure it was set correct?

Click to expand...

I didn't have the tool to do it so I bought it to my local dealer to be changed and set. Hopefully they did it properly.

 

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champyfz450

Well-known member

Jan 13, 2009

421

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Fort McMurray

• Nov 14, 2011

• #10

BB454 said:

Inspect the thottle body adapters. Common problem.

Click to expand...

I'm really hopin that's the problem too. I did install a twisted turbo billet adapter but since it's fixed to the engine and the airbox is also fixed with billet boots to the throttle bodies and bolted to the chassis I'm thinking I might have a couple broken bolts due to vibrations