Robsey wrote:It will be within the last 25 starts of the engine, or since you last disconnected the battery.
Chances are, you have a dirty or loose connector, pin or damaged wiring to one of those two sensors.
Unplug, clean and dry, the sensors and their connectors,
then take the car for another test drive.
And check all your earths, just to be on the safe side.
Agreed.
Both these faults are a common recurrence with this engine, not forgetting the idle control valve needing added to the 6-12 months service.
That's the good news though because engine-wise , nothing else happens
Hopefully it's a connector problem
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Oxygen sensor.
My faults were usually voltage related.
With this car one of the wire's sheathing had completely split millimetres from the sensor, unseen at first because it was under the heatshield tubing. If the connector cleaning doesn't work I'd try there next.
Expect to pay £60-£70 for a new one, all because its got an extra wire lol.
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Camshaft sensor.
-A bit of a nuisance when the eml activates randomly
Since you've replaced the camshaft sensor I'm assuming it's the modified one where you have to cut off the old plug and splice the new one in?
The splice is usually the weak spot and checking will probably fix it
If you can, avoid removing the sensor as it's a bit of a pita.
If done carefully you can ease the timing belt cover back but you have to be careful not to break it, it'll be a bit brittle after all these years.
Silly design really, if they'd reinforced the top of the cover a little the same bolt could have secured the cam sensor and you would be able to remove it easily instead of having to remove more bolts.
If you're removing the cover might as well check the needle position of the timing-belt automatic tensioner, it may need adjusted.
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Although it won't solve these particular problems I'd advise cleaning out the icv.
I have a spare cleaned and ready for the next time the engine stalls crossing into a street
