Notices

My99 classic boost spiking, changed everything and still doing it

Thread Tools
 
Search this Thread
 
Old 23 November 2012, 06:10 PM
  #1  
keljon
Scooby Regular
Thread Starter
iTrader: (10)
 
keljon's Avatar
 
Join Date: Feb 2003
Location: plymouth
Posts: 672
Likes: 0
Received 0 Likes on 0 Posts
Default My99 classic boost spiking, changed everything and still doing it

My classic has a boost spike problem, at WOT it boosts to 1.2 bar then pulls back to 0.6 and fluctuates between the 2. I have replaced the solenoid, all the pipes for silicone, just fitted a vf28 but it did the same thing on my td04. Have tried a pipe from turbo to actuator direct and it holds 0.5 bar rock solid so the actuator seems fine. There is a restrictor in the line nearest the turbo so not sure what else could cause this. Want to get it controlling boost properly so I can take it for a remap
Old 18 January 2013, 10:01 PM
  #2  
keljon
Scooby Regular
Thread Starter
iTrader: (10)
 
keljon's Avatar
 
Join Date: Feb 2003
Location: plymouth
Posts: 672
Likes: 0
Received 0 Likes on 0 Posts
Default

Drilled the pill out slightly and problem solved
Old 18 January 2013, 10:06 PM
  #3  
Eprom
Scooby Regular
 
Eprom's Avatar
 
Join Date: May 2003
Posts: 502
Likes: 0
Received 1 Like on 1 Post
Default

Does it have a decat ?
Old 18 January 2013, 10:38 PM
  #4  
Baz82
Scooby Regular
 
Baz82's Avatar
 
Join Date: Apr 2010
Location: Dublin,Ireland
Posts: 641
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Eprom
Does it have a decat ?
Most likely
Old 20 January 2013, 10:58 PM
  #5  
Mattygreg
Scooby Newbie
 
Mattygreg's Avatar
 
Join Date: Dec 2012
Location: Colchester
Posts: 15
Likes: 0
Received 0 Likes on 0 Posts
Default

My classic has the same problem and im pretty much standard, sorry for being a tit but whats the pill?
Old 21 January 2013, 08:46 AM
  #6  
keljon
Scooby Regular
Thread Starter
iTrader: (10)
 
keljon's Avatar
 
Join Date: Feb 2003
Location: plymouth
Posts: 672
Likes: 0
Received 0 Likes on 0 Posts
Default

First thing you need to do is connect the plugs under the dash and with the ignition on but car not running, the solenoid should be clicking, you need to clean it by spraying brake cleaner through the lines, give it a good soaking. This will probably solve your issue if your car is standard.

The pill is a small brass restrictor in one of those lines close to the turbo
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Timmay Zoom Zoom
Interior
7
23 September 2015 03:37 PM
aaron_ions
General Technical
1
17 September 2015 10:42 AM
bro82
General Technical
4
17 September 2015 07:41 AM
blackv5
ScoobyNet General
0
13 September 2015 12:37 PM



Quick Reply: My99 classic boost spiking, changed everything and still doing it



All times are GMT +1. The time now is 12:36 AM.