Dont know much about FRST's but is it the overboost protection?
On ERST's with a standard ECU the ignition will cut over 9 psi or so.
The amal valve is there to control the boost level, if this has been disconnected as you describe it could be overboosting. How long have you had the car?
Originally Posted by motherhupit
Okay just checked all thier is is a small pipe going from the actuator to the turbo, there's a tea off on the big intake pipe going from the turbo to the air filter but that just capped (blocked) of, and thats it thiers no other pipes.
Thats where a dumpvalve would usually be.
Originally Posted by motherhupit
Thiers a wire going to the metal pipe with turbo written on it, but i think that just goes to the temp gaugde thing on the dash.
ACT sensor if its the same as an ERST
Originally Posted by motherhupit
Is thier supposed to be a pipe going to ECU or somthing then, Cheers BAZ.
Dont think so, I imagine it is all sensor controlled on EEC-IV. Again, on ERST's you have a small pipe which goes from the front of the compressor housing to the ECU. I think the MAF sensor would remove the need for that.
HTH