I'm in the process of totally stumping my garage man with this one, and I have tried to find this fault in the forum .. . but I have a headache now.
Omega B '03 plate 2.2DTI . . .
After starting and driving normally for a bit the Engine Management Light comes on as I slow down (I do . .. honest !) for traffic lights and junctions. Pulling away there is no power (limp mode) but as the revs slowly climb through 2000 the EML goes out and the beast takes off like a startled gazelle. After that it drives normally and will deliver the power I'm used to.
A single fault code comes up with an EGR valve fault but we've taken the vac hose off, applied a vacuum and when released you can hear the EGR valve closing. The solenoid was swapped out too and is working, plus there is vacuum going into the solenoid.
We've swapped out the solenoid for the turbo too . . . no joy, but again applying a vacuum to the turbo side makes it spin up normally. There is plenty of vacuum on the engine side and no apparent leaks . . the brakes are not heavy either.
We've tried a new Air Mass detector ? (hot wire in a cylinder in the air intake hose) too, but that didn't stop the EML coming on and limp mode appearing.
Dan reckons it is likely to be a component rather than the ECU as the car comes out of limp mode by itself.
Anyone had this before ?
Thanks . . . in hope,
Nick
Author
Topic: Help Please . . EML on at tick over no boost (Read 1658 times)