changing coil pack - simple question - Alfa Romeo Forum
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Alfa 156 jts

changing coil pack - simple question

hi guys

My 156 JTS has developed a slight misfire in the cylinder number 4 which sometimes tends to cause the dreaded 'motor control failure' warning.
I'm sure that the cause of it is a faulty coil pack so I'm gonna put a new one in tommorrow with a new set of spark plugs. This is the simple question - is cylinder number 4 on the far right of the engine or far left? meaning if you pop the bonnet up and look at the engine head, is the cylinder ordering from left to right 1-2-3-4 or is it 4-3-2-1
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Re: changing coil pack - simple question


before you assume a coil is dead, find out, it could save you money.

at least watch for a spark, or even better check coil resistance with a multimeter.

compare all 4 coils, and replace any that are significnaly different. i matched all my coil primary and secondary resistances to within 5% of each other to ensure even ignition, but i have serious OCD so maybe you shouldnt listen to me
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