Hey guys. First post after a long time of reading and searching forums. I have what I think is a strange problem. I've read and searched, but is cannot find the exact information to help me, so I'm hoping that someone can help me. This will probably be a long post so that I can describe what I have going on and what I've done to try and resolve it. Ok, I recently finished installing the fresh rebuilt engine. I used most all of the stock parts like injectors, COPs, ect. Of course I had to replace the intake manifold though. The problem is that when sitting still and flooring the gas the engine falls on its face as its it is misfiring terribly. If I start to roll and hit the gas to about 3/4, if seems to accelerate ok. There are no codes or pending codes. I have removed and checked every part including the COPs, injectors, IAC, MAF, EGR, DPFE, EGR sensor, TPS, FP REGULATOR sensor, I have checked them electrically, physically for voltage, pressure/vacuum using a gauge. I checked vacuum line/hoses and sprayed around checking for leaks. I double checked the fuel rail pressure with external guage and it shows 42-47psi at idle and when bumping throttle. I have factory service manuals I'm also using. I do have a bad ABS module that I am planning on sending out to bosch0004 to repair. I have really done due diligence trying to track down what's going on. I used my scanner to watch live data and see some that confuses me. The IAC does make the howling sound sometimes, but it's clean. Some of the data is as follows. TPS shows 18-22% at idle, about 20% engine load, fuel pressure reads from 37-57psi depending on what I'm doing driving. It did spike up to 90psi once on the graph. The timing at idle is from 18-28° and actually drops down to 10° or so during normal acceleration. It has gone up to 38° while driving. No pinging. Idle rpms float about 725-750 in park and drop to 490-550 in drive. It's as if the ECM is having a hard time getting the values correct. I've forgotten any values just ask. I probably have them. After spending hours checking, testing, troubleshooting I was I sitting in the car and noticed that the traction control off switch will not light up at all. I know it's a momentary switch and I checked it out to see if it was closing when pressed and it is. I began to think that maybe the bad ABS module may be causing the ECM to not work correctly causing the weird timing, along with the other values. It's as if the traction control system is causing the engine management system to cut out the cylinders when I floor the gas and only when I floor it from a stop. I've tried to find more onto on how this could be happening, but so far I'm having a hard time find much. I did find an awesome post about actually how the system works. This really made me wonder if the bad ABS module was causing this. I have not checked into the instrument cluster yet as so far I don't know what all I'd need to do. I do know the ABS module is getting power and the ground cuicuits are good. I also checked the resistance on the pins at the ABS module plug and it checked good. I know this is a long post, but I need help and hopefully once I figure this out, it may help someone else. Thanks.