Petrol Diagnostics: VW Polo 1.2 12v 2002 AZQ 3 cyl engine - Non start, possible timing chain fault?

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VW Polo 1.2 12v 2002 AZQ 3 cyl engine - Non start, possible timing chain fault? Archived Message
Posted by Terry Wood on June 5, 2006, 4:47 pm
Have a VW Polo 1.2 12v 2002 AZQ 3 cyl engine with a non start
Has had 3 other garages look at vehicle with no success
Found Temp sender fault reading -40c replaced with new and now OK
Found Number 3 Coil pack giving no spark replaced with new and now OK
But still not starting
Map sensor code appears after continual cranking but live data seams Ok
Ign on 101kpa
Cranking approx 40kpa
Engine seems to be flooding
If you disconnect injectors and give a little Easy start it will run for a few secs
Scoped Injector signals and noticed injector duration of 25ms when cranking is this usual? http://www.terry-wood.co.uk/scope/injector.jpg
Scoped Crank, Cam and Ign trigger seem OK
Have tried tow starting with no success
Any help would be greatly appreciated
Terry

Link: http://www.terry-wood.co.uk/scope/injector.jpg

Message Thread:

VW Polo 1.2 12v 2002 AZQ 3 cyl engine - Non start, possible timing chain fault? - Terry Wood June 5, 2006, 4:47 pm
replies - David Cogan June 5, 2006, 5:41 pm
replies - Roy Ritchie June 5, 2006, 5:58 pm
replies - Terry Wood June 5, 2006, 6:07 pm
replies - Roy Ritchie June 5, 2006, 11:29 pm
replies - Terry Wood June 7, 2006, 11:24 pm
replies - Dave June 8, 2006, 10:59 am
replies - Roy Ritchie June 8, 2006, 6:36 pm
replies - Owen O Driscoll June 8, 2006, 9:31 pm
fixed - Terry Wood June 9, 2006, 10:53 pm
replies - mark mcgrath June 10, 2006, 2:19 pm
replies - Terry Wood June 10, 2006, 10:58 pm
replies - Michael Whitworth June 11, 2006, 12:29 pm
replies - Terry Wood June 11, 2006, 4:35 pm
replies - Terry Wood June 16, 2006, 7:32 am
replies - Peter Holland June 16, 2006, 7:43 am
replies - Roy Ritchie June 16, 2006, 7:49 am
replies - Terry Wood June 16, 2006, 7:57 am