[Peugeot-L] 406 coupe v6 intermittent problem

From: Steve Rodgers <steve.rodgers_at_ts-associates.com>
Date: 09/05/05


Hi, I'm almost at the end of my tether trying to figure out this problem - and if anyone here can help me out I would really appreciate it.

I've got a 98 406 coupe - 3.0 v6 manual. great car.

bought it 3 years ago, and there has been an intermittent problem which has been getting progressively worse.

basically, from time to time the car will stop pumping fuel for a very small amount of time - say a few seconds. really quite violent stop - as if the fuel pump has halted. then it comes back fine. the car has had about 60 hours of diagnostics at caffyns peugeot, and they can't find any faults.

it gets worse though, the problem gets more frequent - e.g. every few minutes instead of every few days. then the car just stops completely. usually when I'm driving at full-pelt down the motorway, resulting in a freewheel into the hard-shoulder.

once it's stopped it will not restart - again as if the fuel pump has gone. I get the orange engine-management problem light coming on.

I disconnect the battery - by removing postive terminal - alarm goes off. reconnect battery - alarm still goes off. alarm will not turn off at all now - even with key.
but, the engine works again. eventually after about 10 mins the alarm will stop its noise - really very anonying.

the problem is that it's an intermittent problem and that I cannot get the car to the garage whenever it does happen, and they cannot reproduce it.

the ECU doesn't store any faults.

could this be a faulty ECU? - that's my gut feeling. has anyone experienced or heard of anything similar to this before?

regards

steve

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    http://docs.yahoo.com/info/terms/   Received on Mon Sep 5 05:41:01 2005