Mine did that for a while turned out to be the shaft seals, replaced them and all is well.

 

Mine does that too. I replaced the TB seals and it still does it. It only does it in cold weather.

 

secondary 02 is your cat, any chance its plugged. I got my shaft seals yesterday. hopefully i can do them before the weekend.

 

I don't have a cat it's turbo back straight pipe no resonators or anything

 

So I cleaned and ruined the seal around my throtle plate, new tb on its way. but i noticed a lot of carbon build up in the air passage for the biss screw. When cleaning i pulled a ton of crap out of there. I am sure it was my problem, but I wont know till the new shows up. This time il just clean that one air passage.

 

Update?

 

Nothing yet, but Its better but I'm thinking boost leak

 

hmmm Is everyone with this problem on tephra v7??

 

What is tephra a tune or a factory ecu code. I am factory.

 

Just had mine retuned its definitely better but it's still there. Just for ****s we did another boost leak test and had the same results. No major leaks tiny leak from the throttle body seals. Shouldn't cause any issues though especially since I hold steady boost at 26psi. What was most effective I think was we did take off all emissions ****. So no more egr.

We also checked voltage from te idle air control and while it was doing it the iac was showing all normal voltage. However the Tps looked like it was following the creep. Obviously it has to so neither myself or my tuner believe that the Tps is the problem. Because its still showing proper voltage. Just moves around along with the pace of the creep.

So rechecked all vacuum lines again an everything. All good. We are both stumped

 

I just found two major boost leaks, and one throttle shaft seal is bad, So il run for a while and post back

 

mine is doing the exact same thing. Ive replaced plugs wires, iac valve and top 02 sensor and its still doing it. im stumped as well

 

Just because you have a boost leak and are still holding boost doesn't mean that the leak isn't bad. It could just mean that your turbo is working double time to get to that boost level. Rocafella are you tuned for those cams?

 

+1 I have the same problem too, only when its cold.

I don't get it.

 

Yes I have been tuned for the cams since I put them in. And as of this past weekend I am retuned for 25psi. And also did another boost leak test an again only issue is very slight tb shaft seals.

I've ha this issue since before the cams