[rnixon]

I have upgraded my 2013 12C with full exhaust system from Larini (catless type), ISG removal, and PURE turbos upgrade tuned by M-engineering. Car made a good power on 91 pump gas around 680-720whp one month back. I drive my car every weekend and sometimes in the week days. I tested and tool a log on the street and the new power was noticeable.

I took the car today to test with the pump gas map to see what the car is capable off in quarter mile. However, on my way to the track, I done a quick pull on street (car felt loss of power) and got a message "engine system failure" and there were two codes shows in the scan:

• P0234 Boost pressure control: Bank 1 over Boost
• P02CA Boost pressure control: Bank 2 over Boost

I cleared the code, put tire pressure on 25-26psi (toyo888r on rears), then tried my first ever pass with this car, and unfortunately car was not pulling hard at all: made 12 second with around 127mph!

Visual inspection in the track does not much help in finding any issue, then I drive back from the track back home normally.

What could possibly the issue? also the tire low pressure messages was annoying, getting the launch control to work is tricky sometimes or it is me I don't know how to use it lol

The issue is probably your "upgrades".

Clearing codes, without doing anything to address the cause, then thrashing it, isn't a good idea either.

 

[rnixon]

The upgrades are fine and car is tuned and log is reviewed.

You removed the cats and fitted bigger turbos, then saw an over-boost problem. Why do you not think that they're related?

After clearing the code it did not return back even after the run and that's why I stopped taking another test knowing there a real problem. Without the test, I wouldn't know

Or give it another chance to go bang ..

Personally, I wouldn't ignore this. The lack of power isn't a good sign.