Boosting issues

Tiny
TWOODALL16
  • MEMBER
  • 2014 FORD FIESTA
  • 1.6L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 67,000 MILES
I have the car listed above ST model.

MODS:

Airtec stage 2 induction kit

VUDU symposer delete

turbo smart plumb back recirc BOV

when I first start the car and boost the car on 3,000 revs I get around 15 psi and then the car seems to lose and extreme amount of power and the will boost consistently at 5 psi.
however, even when I am not on boost and put 100% throttle between 1.5k and 3k onwards I got 5psi.
FYI- I have all turbo sounds whoosh the lot.



can anyone please help me out as I have pretty much have no boost?
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Sunday, August 16th, 2020 AT 10:21 AM

2 Replies

Tiny
BMDOUBLE
  • EXPERT
It sounds like your Power-train control module is limiting the boost as soon as it senses that it is too high. The best thing to do to verify that there is no concern with the add ons you have done is to take it back to stock form then see if the problem persists. That is what they are going to tell you if you take it to a Ford dealer, I know because I set the policy at my dealership. The best thing to start with is to retrieve the codes from the PCM then go from there. One thing that is a common failure is the boost solenoid that is mounted between the firewall and the engine (on the engine bracket), but you will normally have a code associated with that.
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Sunday, August 16th, 2020 AT 10:44 AM
Tiny
TWOODALL16
  • MEMBER
Okay, thank you very much. I’ll try it and get back to you.
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Sunday, August 16th, 2020 AT 12:16 PM

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