Quote:
Originally Posted by suginami
When you say you replaced the coil packs, did you replace the coil wires (or the high tension leads that piggy back from one cylinder to the next), or the boots?
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Packs, wires, boots, everything. Even tested them on my E320 and verified working. The problem does NOT follow a coil pack, it is constantly on cyl 3 and 4.
Just to be clear, we HAVE SPARK at all plugs.
Next step is to clean the injectors. We are assuming the car has been sitting for a while and possibly had varnish plug the injectors up.