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Hi Alivreal Is it the fuel pump check valve/retaining valve 96462095100 That you are referring to? Also, silly question, where's the fuel pump live on the car? Cheers G.
That certainly is the part you need! Please let me know if it works!
Somewhere in the workshop comb bound tech spec is the mention that a knackered carbon cannister leads to hot starting problems and hot idling struggles. I had this happen to me before, fitted a new cannister and all fine.
Can I just bin it? Sorry to go back to Golf GTIs again, but when I stuck a mk3 16V engine in my mk2 the charcoal canister ended up in the bin...
Yup, you probably could I guess. However, the charcoal cannister is the main component of this 'Evaporative emission control system' and here's the actual mention.. "Faulty evaporative emission control system can cause hard starting warm, erratic idle, poor acceleration if fuel vapours are drawn into engine at wrong time. Restrictor prevents rapid cannister purging"
And that's it. It then goes on the mention that this usually only affects driveability when the engine is warm or ambient temps are high. Cold running issues not normally any association. When I had hot engine weird behaviour going on I bumped into this statement by accident when browsing all my books and changed the cannister just to eliminate it - probably prudent me thinks after 24 years and 100k plus miles of use...
Well I've just had a successful 2,200 mile journey around Europe in my 964 and the hot starting problem never reappeared. Until I had to fill up in The Netherlands, where even V-Power is 95, rather than 99-100 like here and Germany. I'll still have a look at that diaphragm, though...