Rustybuggy

Base timing set at 20. Timing doesn't jump around when the misfire hits. Alpha tables are at around 95 on b1 & b2. I can shut off individual coils through MODIS & each one gives a very noticable change. Same with injectors.

Possible, im willing to try anything at this point. The relays & fuses would be an inexpensive attempt.

Love hate relationship, help needed 89 R32 GTR 35k miles, has a misfire at idle that gradually gets worse as i drive the car for a long distance. Doesn't break up under load & seems to run well. I have been ripping my hair out trying to figure it out. I have given up & decided to reach out to the SAU community for any help. Below is what i have done to try and subside the infamous misfire. Thanks in advance for anyone thats willing to help me diagnose this turd. Heres a list of everything i have done. Motor is stock other than exhaust, filter pods & ls2 GM coils. New oem nissan 02's New oem TPS Used but cleaned & tested oem Injectors Battery Fuel pumps Fuel filter Re-sauder mafs, borrowed known working mafs GM coil conversion. Reinstalled original coils, no change. Borrowed ECU checked all sensors on scanner, ecu talk & snap-on modis. Checked cylinder balance & hooked up oscilloscope. Also ran an injector balance test. Replaced chassis/motor/battery ground cables. Spark plugs @ 0.8 gap & 0.7 gap. Tried bcpr7eix & copper core ngk. New temp sensor. Sprayed non chlorinated brake cleaner everywhere looking for vac leaks. Compression test was 150 psi across the board.