Peugeot 207 engine problem when cold starting

Hello. I have a 2008 Peugeot 207 with a gasoline engine and 138,423 km on the odometer. The car is difficult to start when cold (after standing for 6-8 hours), often only starting on the 2nd, 3rd, or even 6th attempt. It starts, but immediately shuts off. A mechanic installed Bosch spark plugs and ignition coils about 4 months ago, and the problem has been present ever since. Before that, it had NGK spark plugs. Now we've switched back to NGK spark plugs, but the problem persists. When warm, it starts fine, and I don't hear any unusual noises from the engine. Several mechanics have looked at it, but they haven't found any faults and don't know what the problem might be. They checked all kinds of pressures, which were fine, and also ran software diagnostics, but nothing changed. I don't know what to do anymore. Thank you in advance for your help.

(Translated from Hungarian)

1 comment(s)