Audi200 turbo.Hard to start when engine is hot.

[Kent McLean]

larry lesiste wrote:
> Dear Kent,
>    
>   Thanks a great deal for taking the pain to ask the questions
>   contained in your mail. 
>   Response to the questions are as follows:
>   -1). When key is switched, sometimes a humming noise is heard 
>   and sometimes not; 
>   -2). The engine turns over;
>   -3). The starter engages and the engine turns over;
>   -4). Dash lights comes on;
>   -5). The gauges moves. At a time, the temperature gauge was stuck 
>   at 110 degree    celsius. 

(I took the liberty to CC the list.) 
It sounds like it might be a sensor that fails or degrades when
it gets hot. It's time to pull the codes:

10-valve:
http://www.sjmautotechnik.com/trouble_shooting/10vtecu.htm
20-vavle:
http://www.sjmautotechnik.com/trouble_shooting/20vtecu.htm

-- 
Kent McLean
'94 100 S Avant, "Moody"
'89 200 TQ, "Bad Puppy" up in smoke