Okay, so I did a head job I actually put LS1 heads on my lq4 with all new plugs, wires, fuel injectors, ls1 intake manifold, msd d585 coil packs with a single turbo kit. It has a t4 turbonetics hurricane sylvania. Brand new exhaust manifolds crossover 40 mm turbonetics evolution wastegate 3 inch pre axle exhaust. I also did the o2 sensors. I did the electric fans upgrade and put a 185 amp alternator got it all together today and I have misfire in 3 and 6 piston. Idles badly and takes off choppy but once the turbo spools up it’s a rocket opens right up? Once it comes back down though it’s misfire only in 3 and 6 a lot? Also high idle and stinks like gas? It has no catalytic converters and like I said I did all the o2 sensors even though I turned off the back ones and deleted the EGR and EVAP sensor from the intake as well is off the ECU. Any ideas? Maybe fuel pump? Or could it be a new faulty injector or injectors or faulty o2? I’m kicking myself over here any help would be great. Thanks in advance!
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Apr 14, 2021 at 4:15 PM
