missing while cold

[toples71]

my seat leon 20v turbo when starting from cold it miss fires any ideas guys?

 

[toples71]

only miss's when the cold start is on and as soon as its warms up its fines

 

[wilky87]

spark plugs? dissy? automatic choke (if they have one)? i have no idea really but thats what comes to mind first, hope it helps

 

[Fl@pper]

all the older models used to suffer same symptoms and vice versa fine when cold but crap when warm etc and the fix was the water sensor (inj temp sensor) worth a try and cheap enough i would guess

basically it tells the ecu the engine temperature so it can rich/lean the fuel to control cold runnign in the same way a choke works

it's like a misfire but just seems to be gasping to run ?

 

[Mat]

another thread you;ve started in the newbie section........ not being rude, but have you scrolled down to discover the Leon section

Mighty get more help and responses there fella

 

[toples71]

never been on this site till this morn so didnt no wot i was doin, cheers flapper its just as u described

 

[Fl@pper]

059919501A dual temperature sender 4 pin green 20MM

that's the listed one for most but get dealer/supplier to confirm it, certainly looks like the usual tried/tested/failed design they always have had