Clarke240

Alright fellas, I have done some research, but this is new to me and Im not really understanding what I am finding. Hopefully someone on here can break it down for me and offer some help.

My setup:
CA18
18g turbo, Vibrant MBC
450cc, Nismo FPR, 255
Nistune Type-1

First of all, and the most important issue, is my knock sensor. My ECU is constantly throwing the Knock sensor code. When I clear it, it either comes directly back up or within the next 15 seconds. My motor is not knocking. Obviously you cant tune with a bad knock sensor, as it is just pulling timing and dumping fuel, and I need a fix now. The wiring to the knock sensor is correct, and is providing the 7-8v. I read on the Nistune boards that the ECU needs to see about 3.6-3.8v to be happy and not throw the code, so you wire/solder in the 500k ohm resistor to make this happen. Though they dont explain how to do this. Do you keep the wiring as per usual, connected to the knock sensor, and just wire in the resistor inline? Any insight on this would be helpful.

Secondly, my N60 MAF does not seem to want to operate correctly. When wired in according to wiring diagrams on this site, I throw the MAF code and the engine behaves as if it is unplugged, revving only to 2k rpm. Even when using the stock MAF, which reads nowhere near enough power for what I am aiming for with my setup, I have to run an additional external chassis ground off of the MAF wiring ground to get it to operate correctly. Ive read of a lot of people having MAF wiring issues, and was curious as to if anyone had similar issues when attempting to wire in an N60/N62 MAF.

Other than that, the car is running and driving, just untunable until these two issues are resolved.

I appreciate the help in advance.

-Tyler