Low Secondary Boost

[rxangus]

Hi All,

Can anyone shed light on the following?

My boost pattern is 10-7-10(7) ie after the transition it recovers to 10psi momentarily then drops to 7psi and holds to redline.

I have all new solenoids and have removed the cat but no difference.

Any ideas?

Ta

Angus

[boltoa]

Angus

I had a very similar problem that I only noticed when I fitted a boost gauge (doh). On mine, two solenoids (turbo pre-control and wastegate) had been swapped over. They are the two next to each other under the plastic pressure tank at the front of the engine. Apparently this is a common problem as some workshop manuals describe them the wrong way round - one has a white dot on it and should be on the right (looking at the car from the front), but the manual said the other way round.

See here for some good turbo boost issue stuff. See "Other stuff" on this page about 2/3 the way down.

Hope this helps.

Andrew

[Steve Burnett]

Angus has recently had a new solenoid rack fitted by WGT so it should be fine.

Angus, my car is going into "the-garage" on the 24th. When I called marc he told me he has had 3 cars recently with the same problem. He thinks it is something else. I\'ll let you know how I get on in the next few weeks.

Steve

[yonner]

all the way from aberdeen to wishaw :O at least come and see me