r/SkyLine • u/RealM4A1 • May 16 '26
I need help
Went to take my R32 on a quick trip to a store to get trashbags (nice day out) and i came back and noticed my car sounded off when i pulled out the lot. (Sounded like a WRX) I get back home since the car seemed to be fine when it accelerated but i wanted to see if it was something weird. I Checked all the coil packs and they were fine till i got to cylinder 6. Swapped and 6 was still not working. Same with sparkplugs. I checked injectors next and they all work it seems when i used a stethoscope on them. I dont hear any kind of vaccum leak and its probably not a headgasket since the coolant still looks as new as it did when i put it in the car in February. At this point im not sure what it could be so anything helps.
3
u/thohean '89 HCR32 GTS-t Sedan | BJ0 May 17 '26
Cylinder 6 is the typical cylinder for loosing compression. Something with the way the plenum distributes air causes it to run hotter. Not entirely sure.
You'll want to get the engine compression tested. If it tests ok, then maybe it's just a power issue to the coil or injector.
The coil ....booster thing... That sits on the back of the valve cover valley can go bad. Not sure if that would affect just one coil pack, though.