Poor starting... AFN 1998 A4

[Crasher]

The Torx bolt in question is just a bracket fitting and the bolt in the centre of the tri plug just a blocking off bolt for access so as nothing of any consequence has been touched you are going to have to go back to basic principles and put down the change in starting characteristics after those fittings were touched as being coincidental, that sort of thing happens all the time and really messes with your mind!

Marking of the bolt in yellow tends to be used as anti tamper evidence but we use it as "torque conformation" to show that the particular fastener in question has been tightened to the correct specification, this aids quality control and precludes having to go around checking everything as if it is loose the paint will show it is moving. We also call it Gimp paint....long story.....

You need to go back to the beginning now ignoring all that has gone before so starting with a code read and then a COI check.

[Nigella]

Thanks for your help, its been throwing it down here all day and I didn't want to start messing about with it in torrential rain...

I have a new set of glow plugs which I intended to fit a few weeks ago but again the weather put paid to that.

Once the car does start it seems to perform as well as always but maybe a little on the lazy side...
CTS I obtained a few days ago and I will fit that first, then the plugs but see if there is any difference on each alteration.


I will try and get a VAGCOM done and see what it comes up with after that...


I will keep you updated with what goes...


Thanks again for your help.

[Nigella]

Well Vagcom had no faults....


I have found however, that when changing the seals on the pump, the internal shaft had broken.

Looked like a manufacturing defect and it looks like a rotational force has caused the failure along on a very fine line that looks like it has been there since it was built and has only just decided to give up.


Will be fitting the spare pump tomorrow and then get to grips with the autopsy and report back....

[Nigella]

Well, all seems well....


New pump working well, but engine slightly down on power but probably due to the new pump not being the one the map was worked out on but so far everything as before..

Goes like the proverbial and starts well... Not quite 100% more like 95% but ok till I get the map tweaked!


Thanks for all your help and suggestions!!


N.