306 Caution ! Warning Light

Hi

My Exhaust Silencer fell off the car the last Sunday, and the pipe that
connects this to the next box up also needed to be replaced. The day that it
happened the Red Warning Light (!) would come on when i wasn't giving the
car any revs (i.e. round a corner). The next day the light would come on
whenever I took my foot off the accelerator. The day after it just started
coming on pretty much all the time, say 95% of the time. I had the exhaust
replaced that day and thought the problem would be gone but its not improved
at all - in fact its probably on 98% of the time.

Anyone got any ideas whats causing this?

The car is driving beautifully, although I have noticed it has used more
fuel this week than I would have expected for the miles.

Thanks
PJ

 

hi you havent said what type of engine or fuel so will give a .....possable
....you say the Exhaust Silencer fell off ..well in doing so it may have
damaged the lambda sensor or worked wire lose(the lambda sensor is very
delicate and will not work if dropped or knocked) if any of the sensors
get damaged the ecu enters its back up mode and will ignore the damaged
sensor signal and assumes a per-programmed value to allow the engine to
continue working..and the warning light will come on and the fault code
will be stored in the ecu.......it may even be one off the other sensors
messing up (would acount for the using more fuel )if you hook up the car
to a comp will tell you what sensor as gone wrong as guessing and getting
it wrong can be welllllllllllll expensive

 

forgot to say not sure what is linked to that warning light as well so dont
forget to check you levels ..ie brake fluid /water ect if you haven
allready

 

Its a Diesel Turbo (97-99 Model).

Its just really stange the way it came on a bit and would go off if you
accelerated, although now the light stay on even when you do (maybe this is
why more fuel has been used as I 've been heavier on the gas). I'm getting
the garage to have a look next week anyhow. I would be surprised if it
wasn't connected to the exhaust problem - its quite possible that something
may have got damaged/knocked as the silcencer was bouncing along down the
motorway for a while as it was still attached by a rubber thing.

 

Probably silly, but it isn't by any chance the handbrake light, which
would indicate that the handbrake was slightly on and binding, which
would also result in an increase in fuel consumption.

 

Don't do what I did, strip down the handbrake to check the handbrake
switch when the light kept going on and off. Further checking of the
manual and I find out it's a dual warning light for the brake fluid
level. D'oh! (Split front brake hose). Previous car had a separate
warning light. D'oh!

 

Well took it to the garage - it was the brakes - the levels were getting
low, so they checked them all over and there wasn't any leaks so that good
at least. Then they tried to stiff me with over £200 with the old "new
discs and pads" needed - which they well be right about but I'm not gonna
them done at a Peugeot garage..... ATS quoted £110 - will see what my local
backstreet garage quotes me when I arrange my next service.

Cheers for the replies.

 

pug dealer discs are expensive but generally better than the cheapo ones you
can get at the DIY places.
There £65 last time i checked plus £30 for the pads. It's the labour that's
the other £100.