Boost down following engine change

[johnf]

Hi

Follolwing the death of my eingine  :mad:  I opted to buy a second hand unit and had that fitted.

The boost gauge on the old lump used to register up to 10psi, however since the install of the replacement lump I only get 6psi.

It has an apexi and was mapped for the original engine but I haven\'t had a re-map since the change over.

What could cause this drop off in boost limit.

John

[bnaellis]

prob vacuum hose under uim the 96 onwards cars have a seal unit for most of the solenoids has this been taken apart as it requires a little work to get it perfectly aligned again.

[johnf]

Thanks Brian, I will ask the question.

John

[20B_boy]

The boost gauge on the old lump used to register up to 10psi, however since the install of the replacement lump I only get 6psi.

Ask whomever installed the engine, a rats nest problem as Bri says probably. The joys of the twin turbo control system!

[93type-x]

look at the wastegate actuator lines under the twins, check if the pipes still have the "pils" in.

si

[cjr]

96 onwards have the pills in the turbo pack themselves, not in the pipes