Corsa Problems

Hi,
I have a 1995 Vauxhall Corsa 1.2 Merit petrol. I've been having some problems with recently.
About a month ago the engine warning light started to come on, took it
to a main dealer who read the codes and these were 13 (Oxygen Sensor, open circuit) and 35 (Idle Speed Control). After the codes were read the engine warning light never came back on and thought all was well.
The only symptom over this time was that the engine was slightly lumpy at idle and noticeable vibration at idle. Possibly slightly increased fuel consumption and lack of power when accelerating.
On Saturday night car was left at a friends and when collected on Sunday morning it started ran really lumpy then cut out after about ten seconds. Waited five minutes tried to start again and started no problem, ran fine for rest of the day.
Yesterday morning after sitting outside all night the same scenario. Engine would crank over but would not start. Called the RAC out to have a look. They put the fault down to water in the distributer cap, which was cleaned and dried off and after that it started fine. The RAC mechanic was concerned at the amount of vibration that the engine was causing so he checked the timing and the camshaft. The timing was ok but the camshaft was worn at one of the lifters (think this is what he called it!) and it would cause the compressions to be out and cause the engine wobble and sensors to be misreading causing the engine warning light to come on.
Went out to start the car this morning and same thing. Would not start, checked the distributer cap for moisture and it is bone dry.
Does anyone have any ideas as to where to start?
Sarah
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If the camshaft was the prob, then it would more than likely be there all the time, not intermittant. Is it the single point fuel ijection unit, they're known to packup on occasion.
John

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John wrote:

AFAIK it is the single point injection model. Same problem this morning when trying to start it. Cranked it over for around 30 seconds, would not start. Tried again after 5 minutes, would not start. Left it for an hour and tried to start and started fine.
Yesterday got someone to check the HT leads, sparkplugs and distributer cap and all seemed fine.
Sarah
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all
If, when it does start, it starts immediately and runs fine, it sounds like an immobilizer or fuel pump problem to me.
Should be pretty easy to troubleshoot if when it's dead, it remains dead for a reasonable period.
Tim..
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