Kevin Tyler

Hello all, I was going through some logs and trying to pin point an issue. From what I have noticed, I have found some lean spots in the higher rpms for a very very short period of time, usually 0.1-0.3 seconds as well as a deviation in rpm for around the same amount of time (usually not during the same time). I am leaning toward the CAS/optical sensor losing its position or disc warpage at a higher load/higher rpm. Engine is cammed but mildly and has springs. I will upload a log or two as well as the cal file. I am just looking for another opinion or a second set of fresh eyes. Lean event: 0:58-1:00 Rpm event: 0:42-0:44, 0:48-0:48.5 0:57-0:58 Tune 7-31-22 Denver.pclr Log 9-5-2023-01.llg

Thank you Adam for replying. Yes they are genuine vq35 coils. I have sourced a new set and will try again later today with another new set of plugs. New Bosch 4.9 is in and calibrated. I believe its a hardware problem at this point. I will try a known good wideband controller next as well. Missfire starts roughly at 5000rpm maybe a bit lower, basically when mgp reads 18+psi

Never once have I experienced an issue like this before. Real quick a run down of the hardware. s13 sr20det running e85 on a gt2871 Link g4+ drop in. Problem is under full load, the engine will encounter a break up around 5000 rpm. Will drive all the way to redline not under 100% throttle. I have gone through logs and files and nothing is out of the ordinary. I am chasing my tail on this one. I have replaced every sensor I can. new lift and surge tank pumps. I have removed the boost solenoid and plumped to run mechanical spring pressure in the waste gate with no change. I have also reduced boost levels with no change. The more I try to drive through the problem, the lower the problem occurs in the rpm range until the car has virtually no throttle input. I have attached a log and cal file if you want to take a look at them. Im lost at this point. The ignition system is z33 coils with plugs gapped to 0.56mm/0.022 for what its worth. log 9-20-21-1.llg Tune 9-20-21.pclr

Error seems to be corrected. MXS needed to be configured as generic dash and not under strada.

I will try this. Thank you Richard.

Ok so before I saw this reply, the dash display only freaks out when the Can harness is connected to the ecu. I can turn the ignition to the run position with the Can harness unplugged and it doesnt freak out. I triple checked the can harness wiring and it is correct. Im starting to think there needs to be a resistor wired in but the harness to the dash is pretty short.

Mxs 1.2 race dash will power up and display when key is in accessory mode. s13 sr20det g4+ plug in ecu. Once the ignition is on, dash loses connection and flashed link screen and single red light. Usb connection lost sounds on computer when issue happens. Anyone ran into this or know a fix?