SpaceKADET

Alright, so I've been working on my pet project for quite some time now. This is a 2004 Frontier with the truck version of the KA24DE. I inherited the build that had some underlying issues and now I'm at the point where its all back together. I'm right on the edge of getting it running but I keep on running into road blocks. I have the engine turning over, but it doesn't seem to want to run at all despite there being fuel and spark. Here's a bit of a breakdown:

- Truck has strong spark, plugs are brand new BKR7E's.
- Double checked the distributor timing, it was off originally, set engine to TDC on compression stroke and re-timed driveshaft for oil pump and distributor as necessary.
- Truck has fuel, but I did find that the diaphragm for the fuel pressure regulator was beginning to leak fuel info the vacuum side, but theoretically shouldn't keep truck from running? (rebuild kit is already on it's way)
- I am running Injector Dynamics 850cc top feed injectors in an Xcessive intake manifold with an S14 throttle body. I double checked that the injectors are wired correctly and going to the correct cylinders.
- Truck has an S13 ECM with an adapter harness to run through the stock engine harness and personally double checked every single wire utilizing FSM's for both vehicles.
- The only code registering in the ECM is for the knock sensor which is not plugged in.
- Truck has 300zx mass air flow sensor. Checked both ground wires and they are good.
- New battery.
- New BC stage 2 turbo cams (240SX spec) and brand new timing chain kit.
- I do not have one or two sensors plugged in on the back of the transmission (5MT), I believe they are inconsequential.
- I don't have the O2 sensor installed or plugged in currently (should only be an issue during open loop?)
- ECM is a unit from RS Enthalpy that looks like it has had one of the power traces repaired in the past. ECM has a base-map on it for my injector size and Z32 MAF.

I was thinking of checking the mass air flow sensor for input/output voltage? The exhaust cam looks to be in the correct position when viewing it through the oil cap with the engine at TDC on 1. Short of pulling the timing and valve covers to double check the timing there, I'm at a loss. I feel like there's some obscure bit of info that I'm not privy to that is the key to getting this thing cooking.