991.2GTS

So I have put in new fuel and seems the same. I have looked at the datalog again and I saw that over 6100rpm the torque reduction request is on. Is what circumstance the torque reduction request will trigger?

Thanks

arter

I would go to a Cobb pro tune.

The torque limit allowed is much higher for a stage 1 tune than stock.
Your stage 2 tune torque limit should be slightly higher than a stage 2 tune ( I have not checked this).
A pro tune could possibly increase this further.

Bad gas would effect timing and reduce power which would decrease your torque actual and prevent you from hitting the torque limit ( yea???) by slowing you down.

spdracerut

Are you seeing the timing retard and boost reduction? Also, different gas station?

Rennolazine

What did cobb say about the logs? Just curious, although i doubt insight will go beyond the comprehensive analyses above. If this was my car, I would have a shop check the turbos and for exhaust/manifold leaks and if hardware is ok do a protune. I have been told if the engine was knocking alot it will throw a CEL. There also appears to be a need for a TCU tune. Is it possible some of this is TCU intervention?

tgavem

Since working fine at stage 0 I still think it is being choked. Need better air filter, and upgraded intercoolers.

Cheshi143

I'll log my car on stage 1 and stage 0 tonight and report results.

991.2GTS

I will upload my datalog again tomorrow. Today I went to track with the stage 2 map. After couple sessions (3rd gear after 6000rpm still struggle), my ecu seemed like reset the stage 2 and back to stage 0 (the boost gauge not getting over 15-17 psi) and the power was linear like stock. After I cool down my car after couple hours and it was the same, the power is exactly like stock (linear with boost arond 14-15 psi). I think I may just uninstall it and sell it.

spdracerut

Based on your previous datalogs, if it isn't a gas quality issue, you have some mechanical issue. All the ecu is doing is detecting tons of knock and retarding the timing and boost to save the engine. The question is, why is it detecting tons of knock?

991.2GTS

So this is my datalog from last night. Pretty obvious is in some kind of limp mode or stock map.

spdracerut

It looks like stock map boost levels. It's still pulling tons of timing because it's detecting a ton of knock. As it seems you eliminated fuel quality as the issue, it leads me to believe there's some issue with the install of your exhaust components which is leading to the detected knock.

991.2GTS

Did you end up doing the datalog?

Cheshi143

Rain prevented it. I'll need to try again this weekend.

991.2GTS

So this is the error code I got. Maybe is related? I see some post from before that the Cobb tune leads to some pdk error code

spdracerut

No, unrelated to all the knock you're getting. Unless there's something inside the transmission rattling around like a can full of nuts and bolts.

Norge911

To continue to beat a dead horse, if you go on track with stage 2 and you haven’t changed air filter and you intercoolers you get way too hot air into your engine.
I would make these changes before scrapping the COBB.



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