All Things Mk5 > How to Guides / Troubleshooting

Boost dropping off

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Carl123:
Just a curious question my boost peaks about 17psi but drops off below 15 in some gears is this normal or have I got a issue somewhere cheers

john87:
If you have a GTI, have you had your Diverter Valve replaced?

These are a common item to fail on the mk5, particularly the standard GTI due to its' placement right next to the turbo.

Carl123:

--- Quote from: john87 on March 23, 2015, 12:25:11 pm ---If you have a GTI, have you had your Diverter Valve replaced?

These are a common item to fail on the mk5, particularly the standard GTI due to its' placement right next to the turbo.

--- End quote ---
Yes it's a mk5 gti owned it for about 8-9 months now I've had a few problems with it but just doesn't feel as quick as it used to i havnt had the diverter changed according to the guy I bought it off it's got a forge one on it never had time to look at it....you think that will be the problem tho??

muff1991:
has it been remapped?

Carl123:

--- Quote from: muff1991 on March 24, 2015, 12:36:08 pm ---has it been remapped?

--- End quote ---
Yes it's only running on a bluefin map tho not the greatest

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