Ok I’m out of ideas , I have an 05 hemi ram that had two cylinders low on compression , 5 and 7 . I pulled and rebuilt the motor the compression is now about 170-175 across all cylinders. It’s still running rough. Before the rebuild I tried new copper 570’s , new coils, new wires , and new injectors. Prior to rebuild I had codes for cylinder 5 misfire that one had 50psi and then multiple cylinder misfire. I have pulled the valve covers off to double check my work and verify the cam lift and as well as pushrods are seated properly. Now with it running I can pull the injector wires for cylinders 5 and 6 with no change in the idle speed. This is a non mds motor BTW. I pulled the injector harness to inspect and found no flaws. I set the timing with the crank at 6 and the cam at 12 . I don’t know what else I’m missing. Yes I cleaned the throttle body proir to the rebuild as well. The egr valve pipe is cool to the touch for the first few minutes so I don’t suspect it’s stuck open ?
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