Temperature sender set for a valver and a bit of a ramble!! HELP!

[monzablue16v]

Hi guys

long post but really struggling now!

Having some mega fuel econ problems with t'other half (89 16v golf)! I've been advised the only thing left to try before a good (expensive) fettle is to change the engine management temp sender as if it reads wrong the ecu pumps too much fuel in and with people telling me "it smells of petrol that mate" everywhere I go I think there may be something amiss, even though the co level is 2.0.
Now this got me thinking about my truck and problems I've been having recently, I think it may explain a few things.

I was sure she wasn't overfuelling but the amount of fuel I'm going through is mad so it must be going somewhere (no leaks )
hard to start from ice cold ie. overnight after that runs fine, Idle is erratic but only 50-60rpm, does threaten to stall out on odd occasions dipping to 400 rpm,I have to give a fair bit of revs when pulling away so she doesn't stall and the amount of fuel I'm using

so after a call to the stealership (good job I was sat down) a full set of three temp senders for a kr engine is ..... £154  GSF don't do them and Eurocarparts don't have them listed on their site and didn't answer the phone this lunchtime, fair enough.
So anybody know an alternative or have Etka so they can check the part numbers because I don't think the parts guy at VW knew what he was doing! "it's a mk what? how old's that"

Also which bits do you unplug and divert and replug when setting the CO because it was just sat as normal when the guy set it up.

and finnally any magical hints or tips to help with the fuelling short of filling my right shoe with helium

[richandhazel]

That really does sound like you have a leak somewhere. Hard to start from cold points me in the same direction, losing pressure in the fuel lines overnight, therefore taking longer to build up pressure again in the morning.

Have another really good look around and make absolutely sure you're not losing fuel from the accumulator to metering unit supply pipe.

Another thing you could try is (carefully) cracking the supply pipe to the metering unit after it has been standing for a while i.e overnight. There should still be plenty of pressure there.

The fact that you're CO is good tends to point to the fact that you're not losing the extra fuel through the engine otherwise you'd be runing richer than that.