I'm not on main land Japan. Okinawa the little island south of Main land. I wish I could find a you pull it around here though.

 

I have stock coils too but w so many trucks running strong I find it hard to believe it's the problem. We can check the ohm readings of the coils right? Maybe find a weak coil?

I haven't and won't have a chance to mess w mine for a bit but I'll make sure to post up results.

I have 80k on mine.

 

The colder the plug is the smaller the gap needs to be to maintain a smooth idle. We run a 7 series on the LSX and have the gap set at .028 and they idle as good if not better then a TR6 would. Try .028 and go down to maybe .026 if you have weak coils.

 

Well, I gapped the plugs down to .028 and the problem still persists. Plugs looked pretty normal.

 

Just messed with the tuning a little. Ran an idle config, and it showed the raf desiring about 3x more airflow than the stock tune. I had previously used the stock raf table, because Im runing the stock cam. Anyways, I changed that and it helped a small amount. Still had a pretty bad miss at idle.

Changed the commanded idle around with the bidirectional controls in the scanner. Adding timing seemed to make it worse, and subtracting timing helped. At 8* the misfiring it damn near gone. At 30* it surges so bad it will die. Any input on this?

Took a video on my phone of the timing affecting the misfiring. I can upload it if anyone wants to see it.

 

Do you have a vacuum leak somewhere?

 

Try moving the timming around until you get peak vacuum at idle. You shouldn't really have to do this with stock cam though. A vacuum leak should make it look like you need less air in the raf table. A partial misfire may make it look rich and make it think it need more air or less fuel. A total misfire will look lean because no fuel is burning. That's what I have seen over the years myself anyway.

 

I've run BR7EF on everything I've tuned and have never had an issue with E85 or gasoline. I've ran them all the way down to 0.020" without issue.

 

Seems like the more timing I added the more vacuum it pulled. 41kpa and about 18 in/hg. IIRC. But the more timing i added, the worse it surges. I find it very wierd with the raf table requiring more air. Maybe it was because I got rid of the pcv system. Does the pcv act as a controlled leak?

Did an ohm test on the wires today. The highest resistance was ~980ohms. All were really close. I bent the crap out of the wires while i was testing them too.

Heres a youtube video of how the timing affects it.

VID_20131027_194650_605.mp4 - YouTube

I will also attach the current tune if anyone cares to check it out. Maybe I fouled the plugs during some tuning. I did mess with the boost some with them in, and im sure I ran it rich as hell.

 

Haven't you said this motor was burning a lot of oil? Is the motor hurt?