M6 car with MS3 cam...lacking power?
#121
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It's not very often that I've seen a clogged injector. I may have missed some of your post but are you getting a lean code in one of the banks? If so, try switching the injectors on the left bank to the right bank and then see if it throws a code for the other bank.
#122
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Check for dirt on the injectors tip. There is a small metallic disc with tiny holes on the tip. If tiny holes are clogged with dirt, maybe the injector has to be cleaned or you can replace it too with a new one.
Make a WOT pass, stop and check plugs. If you have brown plugs and white plugs, fueling is bad somewhere.
Also Check compression, leakdown. Maybe the previous owner washed down cylinders with a bad tune (too rich for a long period). Are the camshaft sprocket and crankshaft sprocket dot aligned? Ignition timing good?
This car should burn the tires even with 3.42 and Nittos
Make a WOT pass, stop and check plugs. If you have brown plugs and white plugs, fueling is bad somewhere.
Also Check compression, leakdown. Maybe the previous owner washed down cylinders with a bad tune (too rich for a long period). Are the camshaft sprocket and crankshaft sprocket dot aligned? Ignition timing good?
This car should burn the tires even with 3.42 and Nittos