vauxhall astra 1.8 sxi problem starting

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Sat 5 May 2007 18:05
vauxhall astra 1.8 sxi problem starting - T1mb0
My Astra 1.8sxi occasionally has a problem starting, more often when it is warm but can happen any time. It always starts eventually and runs perfectly. The battery is new and car recently serviced. Also is there any magic way of improving the engines compression, and could this loss of compression contribute to the starting problem.
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Sat 5 May 2007 18:14
vauxhall astra 1.8 sxi problem starting - injection doc
you don't say whether its not turning over when warm or just noy firing when warm?. sometimes the starters become lazy when warm!.
if its spinning over fine but not firing it may be worth checking out the cranksensor & 2nd if you can unbolt the injection rail whilst warm with injectors still in rail & rest injectors on brown paper still sitting across manifold & leave for a few hours. If you find small fuel staines on brown paper then you can suspect the injectors are dribbling when hot & flooding engine, this is quite common, injection cleaner may help or hinder, if water has been in the system & caused microscopic corrosion then ultasonic cleaning or replacemeant may be the only answer. check all the easy options first.1.8sxi don't normally suffer from compression loss & are good for 170,000+ miles if looked after.
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