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Thread: 260z project that needs some tuning help

  1. #16
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    421

    Re: 260z project that needs some tuning help

    Quote Originally Posted by Larryz260 View Post
    I appreciate your help, I haven't tried through the ALDL port, I'll try that today. I attached a past log if someone wants to take a look at it. This was a win zip file and it was the last log I sent to Affordable Fuel injection.
    I recognized the way those log files save meaning you're probably using WinALDL as your datalogger. Nothing wrong with that if you know how to navigate around the data. Reading them as a text document presents some challenges interpreting it. Pennock Fiero site has a tool ALDLview that can somewhat present your data so it makes a little more sense. Hopefully your ALDL cable is a store bought one that can handle TPRT and not a 2 resistor home made one that'll only work with WinALDL. Couple of things that I noticed...MPH is flatlined at zero meaning do you have a functional VSS that is communicating to the ECM? Not sure what's going on with the knock sensor data with it's repeated reported pattern across the entire log.

    Anyhoo gonna share couple of screen grabs 1. Your BLM datalog 2. Your BLM charted which helps in identifying where/what needs adjusting in the VE tables and 3. One of my BLM datalogs demonstrating what it can look like after tweaking your VE tables. While mine is not perfect, that's where you wanna be where the BLMs stay within a narrow band of 128 +-5.
    BLM all over the place.jpgBLM charted.jpgBLM example after adjustments.jpg
    Last edited by stew86MCSS396; 2 Days Ago at 04:31 AM.

  2. #17
    Electronic Ignition!
    Join Date
    Nov 2024
    Posts
    10

    Re: 260z project that needs some tuning help

    There is no speed sensor, it didn't come in the kit. A knock didn't come on the kit so I'm not sure where it is getting the info from, but it does look very strange. I was using a WinALDL datalogger, but my old laptop crashed, and my new one didn't want to load the WinALDL program. I had my computer guy try to install it and windows 10 didn't cooperate. I'm going to try to get the cobra to except an XDF code from a 16144288 hopefully tonight. I'll let you know how it goes.
    I like the way your data log looks; I have a store bought ALDL cable so it should work
    Thanks

  3. #18
    Fuel Injected!
    Join Date
    Jan 2017
    Posts
    421

    Re: 260z project that needs some tuning help

    Wow...I sorta get it or maybe don't now. Whatever AFI does is kinda beyond me. Apparently they turn off a whole bunch of stuff that is deemed, not needed. i.e. VSS, knock sensor, CEL etc If you open your log with a simple text editor, you can count about 17 parameters that winALDL is getting some kind of feedback. If I do the same with one my past project 1227747, there's a whopping 72 items that it list. Idk if it be worthwhile to try searching for a fuel only thread...which I can't seem to recall where I last read about. Well keep pushing along and hopefully we can get through this.
    Last edited by stew86MCSS396; 2 Days Ago at 08:29 AM.

  4. #19
    Electronic Ignition!
    Join Date
    Nov 2024
    Posts
    10

    Re: 260z project that needs some tuning help

    Thank you very much, I have a bunch of chips, do you think someone here could get the xdf out of it if I sent them one of the chips I have?

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