williamsaylor23

I have put a 2002 clk 55 Amg engine into a crossfire. It runs perfect at idle but as soon as any load is on the engine it’s starts getting misfires on cylinders 8-7-6-5 all in order. So far we have tried replacing an injector, cleaning the fuel rail, switching the coil packs, plugs, wires, and right now the tech that did the ecu reprogramming suggested we check the time just to see if possibly one tooth is out. Does anyone that has a clk55amg ever experience this type of issue before with losing 1 whole side of cylinders? Someone in a Facebook group also suggested maybe a crank sensor, but said a forum post should yield the best suggestions!

thanks in advance!