Hey guys, this is my first post here but I've been reading for weeks now as I've been doing a complete engine swap on my car. Great to finally be a part of the skyline community
I bought my 2001 R34 GT about 3 months ago, and a month ago the radiator dumped coolant and the engine overheated and warped (didn't change temp gauge at all), and the car shut off completely and smoke billowed from engine. All sorted now with new engine in and everything seemed to be running fine. Took it on a long run 2 days ago and no issues at all, and everything seemed perfect minus the need for a tune. Last night I took it for a run on the freeway and I noticed that the tacho was pretty erratic jumping about +-700rpm and a loss of power so I pulled over and the car shut off before I stopped and lost power steering similar to when the engine went. I managed to get a tow home and today I checked the plugs (all new from swap), and coilpacks for any damage (not sure if these are stock or not as they are blue, possibly Spitfires?) and didn't find anything. On idle the car is super rough misfiring and jumping around revs, when revving the car evens out at about 3000+, but backfires on decel and idle, even a little around 3000+. I tightened all clamps behind AFM (replaced old one with one from wreckers due to swap) and plan to swap back to the old one tomorrow and check if that fixes anything and also clean out the O2 sensor. Could the issue be a faulty injector possibly?
Would connecting a scanner to the car produce any possible fault codes? Or would it just read no issue?
The only thing I can think of in between it being perfect and the issue arising is that the car was washed but I doubt much water found it's way under the bonnet and the car ran fine for an hour or so afterwards.
Thanks guys any help would be greatly appreciated.