Ok, my 99 qc 5.9 is acting up. Its sputters, hard to start, idles rough as heck....... Was wondering if problem could be a fuel injector stuck open. Its running real rich too, black smoke out of the tail pipe...... ummmmm..... pulled codes on it and got a P202, The book says that a P202 is either a bad fuel pressure regulator or injector cylinder #2 or injector #2 circuitry....... Any additional info wuold deserve a steak dinner or a case of beer!!!!!! thanx a bunch guys......