Alright so I got a 2008 rwd g37s, 2 months ago my car would go into limp mode. I went to autozone and got it scanned 4 codes came out p1815, p1774, P0615, and C1143. After further research on threads and online it was said that limp mode occurred because of p1774, being the low coast brake solenoid. I didn’t want to buy a used transmission like every mechanic thought would resolve the limp mode. So I took matters into my own hands and replaced the solenoid. I thought I didn’t fix it but what I didn’t realize that whenever I would turn on the headlights because I got those gtr style headlights that it would trigger limp mode. Has anyone ever had a similar issue and resolved it? I couldn’t find anything online besides other vehicle models but they all had different solutions. I’m yet to rescan it since before I swapped the solenoid. If anything imma prolly go to autozone to get it ob2 scanned this weekend. I’m not sure if maybe it’s my alternator going out slowly since in the last 2 months I barley drove the car til the last 2/3 weeks that I did switch the solenoid.