My car was working fine, then mid drive beep beep beep from the glovebox and 5psi max boost. The boost controler is beeping persistently and displaying no obvious error codes. I have fiddled and fiddled with it to no avail. There is no obvious problem in wiring or plumbing.

 

Please help.

sensor gave up the ghost maybe.

Have you got the manual for that EVC model?

I downloaded a pdf of it and it made no mention of a persistant beep beep and safety boost.

 

But I have now fixed it. The solenoid unit had been moved and got wet, this upset the electrics and reset the unit. This put the overboost parameters really low and had it stressing out even on vacuum. A hard reset a hairdryer and a lot of wild button presses later and it is fixed.

The copy I have has a section:

 

4. Warning Setup Mode

If the pressure in the surge tank exceeds the set boost warning level, it will trigger the warning function.

When the warning funtion is activated, the boost will return to stock (baseline).

 

Sounds like the condition you described?

Yeah I am pretty sure that is what it was, but it wasn't just, beep safety boost. The warning parameter had changed itself to like -10 psi (the unit is in KPa so I don't know exactly) so it was a constant beep beep beep beep!

 

Hashtag not a happy bunny :lol: