i have a d15b7 it spun a rod bearing so i took the crankshaft out and got it turned. rods standard and mains are .25 now.while i had everything apart i went ahead and put a new clutch in it also. after we put the crank back in and i took it for a drive and it just doesnt have to power it use to......why

 

Double check the mechanical timing.

Any CEL codes?

 

the timing is good havent checked for codes yet but also when i first start it it idles like crap until the check engine light comes on any help with that?

 

Pull the codes and go from there.

 

will do thx