Back to Forum
Post a Response
    Re: peugeot 406 1999. 2.0 16v RFR Archived Message

    Posted by Dave Hill on May 5, 2008, 6:52 pm, in reply to "Re: peugeot 406 1999. 2.0 16v RFR"

    Hi George

    ""would be interested if anyone has had same code clear problem and what machine"". Not sure what you mean by that! Could you not clear the DTC's? My Snappy failed to clear the codes I had got. Launch & Autodiagnos didn't struggle though. If the snappy was the only tool I had got, then I would have been led on a wild goose chase, looking for a permanent fault when there wasn't one!

    It’s strange that this post has appeared at this time, because I have an identical motor with very similar problems. I have spent too much time trying to sort an erratic running problem, only to decide that it has a sticking valve/hydraulic tappet fault.

    Every test I performed seemed to uncover an issue & I felt sure that when I turned the key, that it would be sweet. Freekin French cars!

    The car I had had the following problems

    Wrong spark plugs (they have long reach plugs like Ford Zetec plugs!)

    Number 3 injector pattern appeared to suggest that it was sticking.

    Oxygen sensor output seemed to suggest that the sensor was being exposed to a pulsed supply of oxygen rich gasses. (same with a different sensor)

    Fuel pressure within spec

    Cold & hot compressions all acceptable

    Even a running compression test at idle & 1500 RPM displayed the same pressures across all cylinders. (Ever tried that anyone?)

    Manifold vacuum test looked good apart from maybe a flutter in the mittyvac needle at fast idle. I wasn't sure if my eyes were fooling me when I saw it .

    Ignition system scoped ok & a substitute coil pack grafted onto it just to prove a point.

    Oil flush & new oil & a good old thrashing seems to have helped a little (but not much)

    I even lost the mirror off my bore scope for an hour or three whilst looking for clues.

    Result was that I proved that lots of things were OK, but not 100% what the fault was.

    You gotta love this job hey!

    Cheers for now

    Message Thread:


Copyright © uk autotalk