Questions tagged [boost]

7 questions
3
votes
0 answers

Boost control using two valves with a vac and boost reference for wide boost control range

Can someone explain how the above boost control setup would work. The valve on the left uses a vac source applied to the top of the diaphram which would effectively help hold the spring closed at high boost levels providing high boost than a single…
rollsch
  • 193
  • 1
  • 8
2
votes
2 answers

02 WRX loss of power/boost

2002 US market Subaru WRX with mods from the PO slowly lost boost over the course of a few weeks. I noticed the boost gauge not climbing as high as it usually does under normal conditions. After a few weeks of symptoms it feels like its lost all…
Sam Basso
  • 474
  • 3
  • 11
1
vote
1 answer

2012 BMW 118i 'Boost pressure control, plausibility too low'

Car: 2012 BMW 118i, UK spec. 115K miles. Issue: Fault code 120308 - 'Boost pressure control, plausibility too low' Symptoms: Car seems down on power under hard acceleration. Fault usually occurs under hard acceleration, particularly when going up…
Joe
  • 11
  • 5
1
vote
1 answer

Mustang 2015 v4

Dears, I have a Ford Mustang V4. and I live in Saudi Arabia, and the weather is very hot. Ford recommends full synthetic oil, 5w30, and some engineers here say that it is not suitable for our climate, and I do not know what is suitable, especially…
Jedo
  • 11
  • 1
1
vote
0 answers

Corsa 1.7 DTI no Boost at low rpms

I own a Corsa c 1.7 DTI (Isuzu) engine which is having issues with boost. Problem describe: When i start driving from 0 rmp to 2.5 is going very low.. After 2.5 rpms it will start getting as normal, but when it starts it gives a box with black…
wiki liks
  • 11
  • 2
1
vote
1 answer

OEM Boost control solenoid part number?

In my never ending quest to keep my aging 2004 WRX functional, I’ve started to look into my wobbling boost pressures. One suggestion I heard was that, after hundreds of thousands of miles, it’s unlikely that the original boost control solenoid is…
Bob Cross
  • 24,537
  • 11
  • 85
  • 166
1
vote
1 answer

Audi TT Turbo and Dump Valve Issue

I've picked up a 1.8 TT Turbo Quattro which has been fitted with a K&N filter and dump valve by the previous owner. My (basic) understanding of how this works is that it should release the air when I lift off the throttle? However, in the higher…
Toby Cannon
  • 121
  • 3