Log Review

[Mwtvvo]

Hi, I'm just starting out with 7747 platform. I have a 88 K1500 that originally came with the 305. I bought the truck with the motor blown with the intention of swapping to the 350 completely stock. It's a CA truck with 2nd Air. I bought a 130k mile used motor with 180 compression on all cylinders and replaced all the gaskets, timing chain and oil pump. I'm using 350 injectors, knock sensor, and ESC module. The entire distributor is brand new. The 2nd Air is working and back in the truck.


My goal was to find completely stock everything, so I wouldn't have to tune the chip right away. I have 2 ECM's the original and one I got from pick and pull, but I have 3 bcc's; ADTD the original 305 with air and auto; ASDZ this came with the second ECM, but doesn't have 2nd Air; AMUS I pulled this one from a truck with a 350, 2nd Air, and Auto.


When I first attempted to start the truck it wasn taking too long for fuel to get to the TB and it took too long to start. It was also dying under load. On some newer vehicles, this is a sign of a bad fuel pump, so I changed out to the EP381 Vortec pump (Found out later, the fuel system is supposed to depressurize after key off, turned out to be the fuel pump relay). Currently, the regulator is adjustable, and I've set it to 13 PSI as that seems to be the consensus ideal pressure. However, the truck is running rich. My thinking is the fuel pressure is too high for the stock setup, and 13 PSI is for those who have the tunning capability, (I will, but not right now).


I've attached a couple of logs that I've run. This morning I swapped out to the ASDZ and other ECM to ensure the readings were consistent and not an ECM issue. So log 11-13a is ASDZ, and the 11-12c is the last log I ran on the AMUS and the chip I'll need to run in order to pass smog. Both logs show my BLM low. I'm comparing my log to a reference log posted under the 7747 thread.


SO my question is, how do the logs look. Does it look like fuel pressure is my issue, if so how can you tell? If fuel pressure is an issue, is there way to use my logs to calculate the best fuel pressure for my setup?


Also, I noticed that I have counts that spike low and sometimes high, is this normal for 7747, or is this a cable issue? I've attached a picture of my connector.