So my skyline apparently does not have a fuel filter and it looks like it has been modded to bypass a filter. It has been giving me idle problems over the past few months when the engine gets warm and have yet found a solution to this day... so i was wondering could this be the problem?? i cleaned the throttle body, cleaned the idle sensor, and cleaned the map flow sensor as well as re-soldering the joints inside & coil packs are good. Any advice would be appreciated guys. May need a oil change but have not gotten around to it.
It’s an r33 s2 1996 looks like it had a engine swap for a s1 engine no idea what year though.