hi, can any 1 help me, i have a vauxhall astra van, 1.7 dti. i have had it to 3 garages and none of them can fix it, it brings the em light on when i go up hills and the fault code it p1125 which is waste gate regulator valve, i have replaced this and the problem is still here, here is a list of things i have done to try and cure problem: cleared the manifold, replaced,air intake sensor, map sensor, egr valve, had turbo serviced, all vacumn pipes changed, i am at my wits end with this as problem has been here for over 6 month now, van seems fine on normal roads, a little under powered but is at its worst when climbing hills. i live in the co durham area if any 1 is local who can help. i am thinking of trying the ECU next, will this help or am i wasting more money?
i have had live data read and the boost pressure selenoid is constantly at 5.1%, and does not change when engine is reved up. is this normal?i have changed this part as the readings were 16 ohms instead of 5 ohms, but when i checked again after i changed it it was back to 16ohms, any ideas why this might be? cheers guys, Brian