180sx sr20det load issue

[Benjpndts 0]

Hey all, got an issue with my sr20

When driving during the day the car is usually okay, stutters every once in a while (when this happens my voltage drops from 13v to 12.4ish) if i say turn my headlights on, the car feels like it cuts in and out and loses spark (basically impossible to drive, hesitates accelerating and even at a solid cruise like 70km/h at 2.5krpm) has a brand new altenator and battery tests at 12.8v when car is off and 13.9v when car is on. Any suggestions on what i should be looking for? Any info is appreciated as id kinda like to figure this out asap

[6330 14]

Hey man, very hard to tell exactly the issue from the description but check out this link and run through the basics then hopefully you'll pick up the issue during your fault finding.

https://www.plmsdevelopments.com/index.php/sr20-stuff/sr20-setup-tips