Engine Antipollution System Defective

Talk about the 406's electrical system, what wires do what, how to add extra functionality, etc.

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Brucie
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Joined: Sat Aug 04, 2007 8:57 am

Engine Antipollution System Defective

Post by Brucie »

I have a 2001 406 Exec auto, 152,000 miles. Had it since 7,000. Great car.

Last February I had a display and engine warning light saying Engine Antipollution System Defective.

The main dealer checked it, and reported "Unable to access ECU. Traced to poor contact at diag socket. cleaned and tightened terminals. OK now."

I've just had the same warning. Have booked car in again [I mess with computers not cars!] but had a peek under the bonnet. Thought I might check terminals etc and save a good few quid, if that is all it is.

Is the ECU in the plastic box thing at front right?

Car has been faultless apart from this niggle, and another electrical problem when water got in a rear light onto the connection for the CD autochanger. This effectively short circuited the engine management system. Advice was to disconnect the suto player, and that sorted it until the garage sealed the leak.
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jameslxdt
3.0 24v
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Location: London, on me bike
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Post by jameslxdt »

i assume its a HDi, is it a 90 110 or 2.2 16v 136
Peugeot wrote:what are you worried about? we made car that lasted 10 years"..."Zat is very goode non? :|
FAQ - 406 D8 petrol (excl. V6) running and starting problems
Brucie
Newbie
Posts: 2
Joined: Sat Aug 04, 2007 8:57 am

Post by Brucie »

it is 2 litre petrol, not diesel
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