Im having a few problems with my rover 220 when its ticking over on idle. Some days it runs as smooth as a baby bum constantly at 1000 rpm then some other days like today it ticks over like its running on 3 cylinders at around 500 rpm down to 0 rpm it goes up and down like a yo yo and then stalls. I need some clues to where to start looking i checked all ht leads they are all fine. The thing that confuses me is when i put my foot on the gas it runs perfect its only on tick over.
Any ideas and sugestions???
Thanks
wayne
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When you say you have checked the HT leads, what form did this take? Did you check the resistance for instance? Another posibilty is the coil breaking down. You need to check the resistance of the primary and secondary windings and test them to earth.
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\"Nothing less than 8 cylinders will do\"
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Whats the best way to check the ht leads and coil if you dont mind me asking
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Not wishing to confuse.But it could also be an air leak on inlet manifold.Either a split pipe/manifold gasket leak?.This has been known on 2 litre.Ie one or two cylinders is running weak untill it warms up then is fine
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Steve
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The only thing is after half an hour of driving its still the same even when it has warmed up. Then the next day it might run fine from the time i start it up.
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Check the thin plastic pipe to the MAP sensor for blockages or leaks. If there's any oily gunge in the pipe, check also the sensor itself.
Assuming yours is a T series with MEMS ignition, then this is the cars way of telling you that a sensor has failed, because the car does not have a 'check engine' light. if it's not the Map, you will need to have the fault codes read, unless you have the wherewithall to check every sensor output yourself.
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