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P0234 code (stock tune)

ElAviator72

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Location
Canby, OR
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Brent
Vehicle(s)
2016 Ecoboost PP Deep Impact Blue (base 100A car)
Hi

At 107,000 miles, with the stock tune.

I just got a P0234 code taking off at WOT from the dealership parking lot :cwl:

My only mod is a recently installed MBRP Street catback exhaust...

The computer dialed me back, hard. I can't make more than 5 PSI boost now.

Question 1: what causes overboost? I'm guessing that my wastegate is suspect #1.

Question 2: what would an aftermarket wastegate with a 10 lb. spring do for the car? Would the stock tune be okay with it? It seems like if I have to spend $150 on parts, I might as well make the car a little more fun...:sunglasses:
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ElAviator72

ElAviator72

Well-Known Member
Joined
Aug 3, 2015
Threads
83
Messages
1,175
Reaction score
169
Location
Canby, OR
First Name
Brent
Vehicle(s)
2016 Ecoboost PP Deep Impact Blue (base 100A car)
Fixed it. Bad bypass valve.
 
 




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