X1/9 Dave

engine problems

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Hi new here hoping you can help I have a 2002 S type 2.5 petrol V6 I had OBD DTS messages missfire on cylinders 1,3 and 5 removed 5 of the six coil units and spark plugs did not want to remove the inlet manifold for the rear one cleaned the plugs checked the gap, resistance tested the coil units got the same resistance across all 5, then replaced the unit back on the car but did not put them back in the same place to see if the DTS moved but it did not restarted the engine bit of right foot plugged the OBD back in and got cylinders 1,3 and 5 missfire.

Read on line that this can happen if the camshaft jumps a tooth i have heard of this happening on belt drives but not on chain drives, just seems a bit strange for it to be all three on the same side could it be the ignition controller all three on the same side to me makes it sound it is not

Please people any ideas

Many Thanks

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