[4x4k30]

the engine I have is a 6.0 out of a 2007 hummer it came with no ecm or tac module or pedal. it has the blue green wiring harness. from what I hear is that this 07 model engine is part of the last ones to run the blue green wiring harness and 24 reluctor crank wheel . they changed in the middle of 2007 to the e38 harness on all gm ls engines and use a 58 tooth reluctor . I had to buy a different ecm and pedal assm.it had no maf either. and the ecm was tuned by a guy in tenn. named erkel55 I asked him about the tune he done but he hasn't got back with me yet he is gona see what tune he did to my ecm.he wasn't sure if he deleted the maf. system.