I recently purchased a 1995 Maxima GLE with a blown motor. I purchased a used motor with 108000 miles on it. The motor they sent me was from a 2000 I30. I switched the valve covers, upper and lower intake manifold, front exhaust manifold, and modified my vacuum so it would work around the water pipe from the I30. Now the car runs great when it's cold, but as soon as it warms up, it runs like crap. This is my first Nissan, and I've read alot of the forums here. I was wondering if anyone could give me some advice on what to do next. I keep getting EGR, and MAF codes. I still have all the I30 parts so I can do any necessary swaps. I'm just not sure where to go next. I really need this car up and running. Do I need to put any of the DE-K parts back on to get it running right?