its so ugly
where do I start looking?
plugs are about 1 month old and so are the plug wires.
About the car --
Complete OE exhaust system no other performance upgrades.
its so ugly
where do I start looking?
plugs are about 1 month old and so are the plug wires.
About the car --
Complete OE exhaust system no other performance upgrades.
Last edited by TURBOPOWERED68; 04-16-2021 at 04:54 AM.
1986 GN Stand alone FAST XFI
1968 Chevelle Turbo LQ4
2014 Caprice 6.0 6L80
Go ahead and post the tune file as well. Depending on cam size, you may have to make some adjustments to misfire sensitivity. I had to completely disable random misfire tests on my car, 235/248 cam on an ls3. My logs just as ugly as yours, turned out to all be false misfires...
so number 2 is the problem
Last edited by TURBOPOWERED68; 04-15-2021 at 08:18 PM.
1986 GN Stand alone FAST XFI
1968 Chevelle Turbo LQ4
2014 Caprice 6.0 6L80
If you create an 02 voltage chart, you can see that your O2's are not switching well, leading me to believe something is up with fueling, or if you're running an aftermarket set of headers that change 02 location you may need to make some adjustments to your proportional and integral delay tables. It also shows its commanding an afr of 14.06, I'm not sure if you're running an ethanol sensor and its adjusting afr based on that, it would be useful to log commanded lambda to be sure. If you can confirm that plugs, wires, and coils are all functioning properly, I would definitely start with getting your fueling problems squared away to start.
1986 GN Stand alone FAST XFI
1968 Chevelle Turbo LQ4
2014 Caprice 6.0 6L80
Sounds like a good plan. Also make sure to double check plug gaps while you're at it before shelling out more money on a new set if they are only a month old.
one thing I am a little annoyed about is the misfire detection threshold was set at 6500 rpm -- so here i am running the misfire test over 25 times in all kinds of loads and getting nothing back but zeros.
Once I discovered this I set the threshold to 500 rpm and walla look at the picture.
Swapped coils and still #4
Swapped plug wire and still #4
Installing new NGK TR6 plugs today
Just ordered new set of OE injectors
1986 GN Stand alone FAST XFI
1968 Chevelle Turbo LQ4
2014 Caprice 6.0 6L80