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Old 03-07-2013, 09:37 PM   #1
z0rz
Scooby Newbie
 
Member#: 231953
Join Date: Dec 2009
Location: Sacramento, CA
Vehicle:
2002 WRX
WRB

Default Weird Boost Spike

The other day I was driving a drunk friend home and had to pull over to the side of the road for.. emergency evacuation.. so my car spent a good amount of time idling that night.

So I finally get the guy home and I'm pulling onto the freeway and my boost gauge spiked up to ~29 PSI and the needle was jumping around a bit as I drove at a constant speed. When I pulled over I didn't see any smoke. The car seemed to drive fine after that but I avoided boost just to be safe.

Fast forward to today, I decide to datalog with my AP and strangely everything seemed completely normal-- boost gauge seemed accurate (wasn't bouncing around), and the car had no problem pulling on some ~50% throttle runs.

Unforunately, I didn't think about updating my AP firmware so it is using some older parameters. Hopefully there's enough to see if anything is wrong. On datalog9 I tried to go WOT but had to let off really fast because I saw a black Ford front end poking around a corner haha.

datalog8

datalog9

datalog10

Car is running Stage 1 Cobb OTS map, all stock aside from K&N filter, Perrin silicone intercooler Y-pipe, and Greddy Evo2 catback.

Does anything look wrong?
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Old 03-09-2013, 01:50 AM   #2
mod maniac
Scooby Specialist
 
Member#: 300551
Join Date: Nov 2011
Chapter/Region: SCIC
Location: mariposa ca.
Vehicle:
2&4 fxt & fxt sti
Fullers Garage

Default

If it is all stock running the td04I don't think you could make 29 psi. You also should have hit fuel cut if you did.
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