Weird idle issues, silber turbo....

[m1kflyingtiger]

So the sleds been running great for a couple weeks then started acting kinda funny. First I noticed that when on boost I was in green-red mode. Looked up what that mode does and it said red works in conjunction with blue green so I didn't really worry about it as it seemed to still run pretty amazing.

Then throughout the next day it started some weird things with the idle. In the morning it idled just fine, then it progressed to a low idle. Then a little bit later it got to the point that if I didnt hold the throttle it would die. Also it would not start if I didn't crack the throttle open.

I figured it was moisture in the tps or that idle set screw that had backed out on me before. The sled spent two weeks in the garage drying out. Fired her up and same thing. Tried adjusting it with the throttle cable to see if Tightining the idle screw would fix my issue and the sled kept dieing. Taped down the tss and I could adjust it out and get it to idle. Then after a few seconds of idle I can blip the throttle and it starts idling high. Around 2400. I listened the throttle cable till there was slack and the idle stayed up. Blip the throttle again and she comes right back to the high idle. So now with the saftey switch gaged I can start it by giving it a little throttle. Baby the throttle for a minute, snap it open and it will continue to idle at +-2400 rpm.

The reverse quit working on that last ride also witch points my thoughts to tps. Going to get it checked tomorrow. Any other ideas or obvious things I should be looking into?

Has anyone else been seeing blue-red for boost mode?

 

[friscospices.com]

Disconnect your fuel controller (plug above the throttle bodies) then take it in and have your idle and TPS adjusted. I dont think you should mess with the idle without re-checking the TPS. Or maybe just try to dis-connect the TPS blow it out then use a little dielectric grease on the plug when you put it back together. All automotive stores sell it sometimes they call it bulb grease

 

[tylbz]

mine did the same. my tps packed it in. im gonna start a new thread asking how many this has happened to? my dealer reserch says a LOT!!!.

 

[m1kflyingtiger]

got her plugged into a digital wrench today and the tps was WAY off. tried to set it and it wont even hold a setting. I'm thinking this is probably 90+% of my issues

 

[Jeff K]

I have a weird idle after my install as well. I recalibrated my TPS, but it did not make a difference. It will idle around 1800 or so, but surge up to 2400 every few seconds. Reverse still works though, so I have been living with it. This problem seems to be too common among Pro turbos. Hope we can get it figured out!

 

[tdorval]

When people that are trying to get replacements are saying most dealers are sold out its probably not just a turbo issue...

 

[m1kflyingtiger]

There's another thread going about tps sensors that I put this in, but mine was in the shop last year at the end of the season for tps when it was stock. Just wish they would have changed it instead of trying to adjust it while it was still under warantee.

 

[tylbz]

i just threw in a new tps. the sled rips and the reverse works great agian. but now it idles super high. 2400-3400ish

 

[Jeff K]

did you loosen the allen bolt off completely and remove the throttle cable before you set the base voltage?

 

[tylbz]

we backed the allan bolt out but we didn't unhook the throttle cable. the cable isn't tight so i dont think that would affect the base setting. we double checked the tps and the numbers are good. my idle is super high and also my whole power curve seems to be lean now????

 

[Jeff K]

How much was your base setting out by? What did you use to set the TPS? Did you make a TPS tester or buy one from Polaris?

What were the steps you used to re-calibrate your TPS?

 

[tylbz]

i had a polaris mechanic do it for me, but i helped. he had the plastic tps connecter piece pluged into a volt meter. the bad tps sensor read 2.34. so we backed out the allan bolt and installed the new tps and set it to .710 on the volt meter. then we screwed the allan bolt in till it read .935 and tightened the 8mm nut. when we pin the throttle it's reading over 4.00.

 

[hobbes]

Add another to the pile of bad TPS sensors... had to replace mine this weekend. I'm going to try to find another just for backup, I wonder what the root cause is?

FYI mine started to idle like crap also, and it also started to hang the blue light more often on startup before the box went bad all together.... related?

 

[tylbz]

i'm not sure, probably. my box read 4 to 5 yellow lights when i started it with the bad tps.

 

[brad30]

Mine did the same thing, 4hrs on a brand new sled and my tps went bad, now with a turbo on my idle surges up and down 400rpm???

 

[TurboMatt]

Mine did the same thing, 4hrs on a brand new sled and my tps went bad, now with a turbo on my idle surges up and down 400rpm???

we backed the allan bolt out but we didn't unhook the throttle cable. the cable isn't tight so i dont think that would affect the base setting. we double checked the tps and the numbers are good. my idle is super high and also my whole power curve seems to be lean now????

i just threw in a new tps. the sled rips and the reverse works great agian. but now it idles super high. 2400-3400ish

got her plugged into a digital wrench today and the tps was WAY off. tried to set it and it wont even hold a setting. I'm thinking this is probably 90+% of my issues

Does anyone have any updates to your problems? Did you get your problems fixed?

I got my sled running again last week with a new motor(without turbo). I took it out and have put 230 miles on it and its running awsome. Idles perfect, rips hard(for a stocker). TPS was reset back to stock specs by the dealer who put the motor in.
Now I'm having the crazy idea of putting the turbo back on to give it a try again but I'm worried about going through these idle issues again. I'm positive I had everything set right and installed correctly the 1st time around but I still had idle problems. I don't want to go through that again.

One other thing I was thinking of: I remember from the big install thread that it came out that you weren't supposed to have the autotune plug plugged in. Would having this plug plugged in have any affect on the idle?

 

[friscospices.com]

They set your tps wrong. You need to remove the cable from the lever and loosen the allen so it isnt touching then snap the cable a few time to be sure its closing all the way then set your base line. I thought it was supposed to be like .94. Mine is set correctly and runs about 2200 rpms at idle. The tech told me that the 5 or 6 turbo sled he has set a TPS on always idles a bit high.

 

[TurboMatt]

They set your tps wrong. You need to remove the cable from the lever and loosen the allen so it isnt touching then snap the cable a few time to be sure its closing all the way then set your base line. I thought it was supposed to be like .94. Mine is set correctly and runs about 2200 rpms at idle. The tech told me that the 5 or 6 turbo sled he has set a TPS on always idles a bit high.

I'm not sure you read my post right. I said I just got my sled running again with the new motor(no turbo) and it idles perfect, 1800rpms. They set it with the digital wrench, but when I got it back home I checked it with my homemade radioshack tps setting tool and its right there.
How can you say they set it wrong?
I'm THINKING about putting the turbo back on. But don't want to deal with this high idle issue all over again.
Are you saying with the turbo I'm just gonna have to deal with a idle that's not quite perfect?

 

[EZmoney]

No... Hes saying set the dam tps properly and you wont have a issue. The tps set up on a pro needs attention..Stockers are screwing up as well as turbos. Mine idles at 1800 but mine hasnt fkd up yet when it does ill re set it .

 

[Boston Racing]

The high Idle is NOT normal.