My wastegate is apparently stuck shut. For a long time I was trowing overboost codes and defeuling. Then I out a XZT on it and no longer worried about it. The boost fooler in the XZT made the sticking wastegate work to my advantage. Well now it appears that the wastegate is not doing anything anymore and I have bounced of of 30 lbs. of boost a couple of times. I don't know how far the fooler goes or if it totally cuts out the defuel and codes. I do not want to be blowing the head gaskets out.Rick

It's based on your turbo.Automatics are typically HY35W turbo which has a limit of 30 PSI. Manuals are typically HX35W turbo which has a limit of 35 PSIAs for the engine itself it can handle stock form up to 45 PSI safely without any modification other than larger turbo. Beyond this I would suggest head studs, fire ring or O-rings the head.

I have been running an Edge for 6 years and have it set to defuel at 30 psi and have hit that limit many times, with no issues. With the kit came a device that installed in the compressor housing that opened the wastegate at a higher psi. Not sure what it was set to. If you are not the original owner maybe someone forgot to take it out or disconnected the wastegate? I installed a different turbo and inspected my HX 35 and it was in good shape, the wastegate opened with a shot of compressed air.

Being youve got a 98.5 you should have the HX. I think the autos changed turbos in 2000, but not 100 percent sure. With my smarty Ive seen boost pressures over 30 a few times. As long as your engine is healthy, you should have no issues with that.

Ya know i was just thinking the same thing! I just put my quad and 3 piece on two weekends ago and at level 5 (cant go higher with out slipping the clutch) i slam right to 40....not sure why and i was kinda worried so i set my defuel at 35 to be safe

This is a older video...

But I can now tap the 35 pin on demand.