« previous next »
Pages: [1]

Author Topic: Weird Boost ....  (Read 909 times)

Offline stace110

  • Not said much yet
  • **
  • Posts: 71
Weird Boost ....
« on: 14 December 2012, 20:11 »
Hi guys,

For some reason i keep getting different levels of boost .....somedays the max will be as low as 4 psi and tonight 8/9psi any ideas.....?
1.8t agu, decat, airfilter, cold side dumpvalve,
Logged
1999 AGU, sitting on Dotz 18's,forge 008p, r32 side skirts. satin silver....more to come

Offline Wazzzer

  • Moderator
  • 10k hero
  • *****
  • Posts: 11,172
  • Golf GTI 1.8T AGU
Re: Weird Boost ....
« Reply #1 on: 14 December 2012, 20:22 »
Boost levels change depending on atmospheric conditions but I'd say to drop by half like that you have a leak or a weak actuator
Logged


1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline stace110

  • Not said much yet
  • **
  • Posts: 71
Re: Weird Boost ....
« Reply #2 on: 14 December 2012, 20:26 »
She has done 139k and has a slight exhaust blow from the down pipe flange ....
Logged
1999 AGU, sitting on Dotz 18's,forge 008p, r32 side skirts. satin silver....more to come

Offline Wazzzer

  • Moderator
  • 10k hero
  • *****
  • Posts: 11,172
  • Golf GTI 1.8T AGU
Re: Weird Boost ....
« Reply #3 on: 14 December 2012, 20:42 »
The blowing won't help as the lambda will be adjusting the fuelling to compensate. I'd say weak actuator with that mileage
Logged


1999 1.8T: R-Tech remap - 225bhp/256lb/ft : K03s : THS FMIC : THS PCR pipe : 2.5" stainless exhaust : THS FR3 Engine mounts : G60/VR6 clutch : Calibra Yellow injectors : VR6 MAF : Devils Own WMI : Forge 007p : Carbonio CAI : Leon Cupra R Brembos : FK AK Street coilovers : Votex skirts : Anniversary front : click ---> http://www.golfgtiforum.co.uk/index.php?topic=92175

Offline stace110

  • Not said much yet
  • **
  • Posts: 71
Re: Weird Boost ....
« Reply #4 on: 14 December 2012, 21:20 »
Easy to change ....?
Logged
1999 AGU, sitting on Dotz 18's,forge 008p, r32 side skirts. satin silver....more to come

Offline tshirt2k

  • I live here
  • *****
  • Posts: 1,323
  • Been there...Done that...
Re: Weird Boost ....
« Reply #5 on: 15 December 2012, 12:52 »
Or even boost leaks.
Logged


Mk3 ABF 16VT Megasquirt V3

Tshirt knows........ How to diagnose
Pages: [1]
« previous next »