Have you checked the vacuum pipe from the distributor to the carburetor, its the automatic advance, if this is leaking then that will cause a sudden failure when extra gas is applied .
The rattling sound from the device under the grille on the windshield of your Peugeot 207cc may be caused by a loose wire or a broken part in the electrical system. It's crucial to fix this problem right away to avoid any further damage to the car. It's best to take it to a Peugeot dealership for a checkup and diagnosis. Ignoring this could lead to bigger issues later on.
Do you mean cold weather? When was the engine last serviced? Old, dirty spark plugs and old, dirty filters can cause bigger problems than you would expect.
On really cold days try to 'Prime' the engine. My method is to use the kick start to spin the engine over 3 or 4 times before using the electric button start. If yours has a manual choke try gradually sliding it down to a lower setting once it is idling and all the way off once you are riding.
SPECULATION only... because Peugeots were not
commercially imported to the USA in 2008... BUT
TYPICALLY you must empty & drop the
"GAS TANK" to access the sender unit
(fuel - pump)...
It is a big enough job where it is certainly reasonable
to lift your rear mats to LOOK & see if access is available
(through the car floor) with the FUEL TANK in place...
http://www.mister-auto.co.uk/en/sender-unit-fuel-tank/peugeot-207-wa-wc-1-6-hdi-90hp_v19352_g605.html
I did check a Peugeot FORUM and an UNANSWERED
question remains...
Does any one know how to remove the BIG NUT that
holds the fuel sender in place??
207 fuel sender removal Peugeot 307 forum Peugeot Central
My guess = BIG WRENCH (spanner)...
Sadly I have found no AMERICAN companies
that list significant PEUGEOT parts or tools from
1991 to 2009...
Hope this helps.
My suggestion would be to check the gage FIRST.
Carnac the Magnificent
Sorry I have no answer but did you resolve this? I have same problem. On reconnecting battery, the washers and headlight (Flickering) on constantly even though ignition not on