Hey crew! Getting tired of beating my head against the hull on this one. The last trip to the shop for another issue produced codes 21 and 33. I dutifully installed a new map and tps to round out the only items left not replaced on the tbi. Here is the problem... it won't idle. Runs over 2k like a dream but as soon as you pull the throttle back she sputter and dies. I pulled the vacuum line off the map sensor and it will hold idle for 15-30 seconds before fading out. I can keep the motor running if I am constantly revving it. I haven't seen if the codes are back, but this has been an ongoing issue that no one can figure out? What am I missing/forgetting?