h22 in dc2, starts and runs but sometimes spits and sputters like a piston isnt firing but stops after about a minute and runs fine. no CEL. rpms will drop very low and bounce up and down, sometimes will just shut off for no reason. when trying to rev, it will just bog and cough...any answers???

 

one of the sparkplugs might be dead, and the sparkplugs wires... probably the first few steps you should look into-- just my 2cents

 

Do a full... andImean FULL tune up and it should help!

 

I had a similiar prob with h22 when i first got it, i didnt have the rev prob you mentioned though, after a FULL tune up....weird feeling and sound dissappeared. My timing was ALL messed up.
FULL Tune Up

 

I had a bad ignitor, which caused the car to die, then jump back to life, then die again. It usually took 2.5 hours of driving before it would start doing it though. Like the others said, do a full tune up and check your wiring.