Racking my brain on this one guys. 7mgte, maf 1st gen, 57trim, 550s. Car started smoking at strange times suddenly. Shortly after that it started "chuging" at idle or camming. Would randomly loose tps response but through all this no flipping codes! Replaced the GM maf then suddenly starts boost cutting in second gear spike lean then pull just fine in boost in third! Just reset the computer checked my plugs (all black and reek of fuel) started it back up A/f s were good until closed loop. Now it idles at 14.6 to 16 no matter how I adjust. What is up?! Im tired of smoking. The turbo is less than a year old as well. But how am I running lean but idle fat?? I was under the impression these idle around 10.5 Af.
