[quote="old del boy"
Misfires and air leaks , you really need to make sure your ignition system is not at fault and working properly , it's common for these cars to have been neglected , people seem to think ignition leads last forever but they will break down internally over time or absorb moisture , how old are yours ?
Then there's the distributor cap and rotor arm , the arm can leak down the shaft and cause problems , spark plugs , are they the correct ones ? gapped properly , once you have established these are all ok then you can think about the myriad of other things that could be causing rough running , a failing crank position sensor can cause weird symptoms while working intermittently , we have had a case whereby a fractured wire caused this to work intermittently , of course it is possible that the engine management ecu is not firing the injectors properly but it's more likely to be something else as these are quite reliable , a damaged wire to an injector for instance or a poor earth due to corrosion , it's a question of elimination i'm afraid ,
I was afraid of this
where can I find the coolant temperature sensor?