3 cylinders
with engine running and you well insulated remove one spark plug lead at a time on the working three the engine will probably stop when you remove one and it makes no difference that cylinder is your culprit , check for sparks from plug leads whilst off by holding lead near part of engine taking care about fuel vapour catching fire ,,get a compression tester would be my first thought unscrew all plugs screw in compression tester to each plug hole in turn spin engine over with throttle wide open take note of figures you will probably find one cylinder has a very low reading if they are all the same then it must be ei injector / fuel . if you have sparks from all four and four lots of compression readings of a similar poundage/pressure +/- 10 or so lbs then its a fuel problem if its electronic injection not sure how to check that but while plugs are out which plug looks dry is a start PS did you change the Rotor arm ?
with engine running and you well insulated remove one spark plug lead at a time on the working three the engine will probably stop when you remove one and it makes no difference that cylinder is your culprit , check for sparks from plug leads whilst off by holding lead near part of engine taking care about fuel vapour catching fire ,,get a compression tester would be my first thought unscrew all plugs screw in compression tester to each plug hole in turn spin engine over with throttle wide open take note of figures you will probably find one cylinder has a very low reading if they are all the same then it must be ei injector / fuel . if you have sparks from all four and four lots of compression readings of a similar poundage/pressure +/- 10 or so lbs then its a fuel problem if its electronic injection not sure how to check that but while plugs are out which plug looks dry is a start PS did you change the Rotor arm ?
