Hey d folk… I have a 93 del sol with the single jingle d16. I bought this early on in the summer and I can’t lie I got the project I was hoping for plus more. My first engine went down the drain because it had the wrong dipstick meaning that u never know when it’s good on oil, so that one blew. The next engine I bought is built to hell with everything forged top to bottom, even came cammed and with an eBay turbo kit. Now on to my problems, so just for reference I am not running boost as the wastegate doesn’t have a spring in it, because I haven’t had the time to get it tuned yet. I made sure to have new coolant parts and that the system was primed and everything. New thermostat and all, but today as I was cruising down the highway (not driving it hard at all), the coolant and oil temp crept pretty high. I saw my oil at 130°C 266°F, so I calmed down on and kept her out of revs and it started to cool down. By the time I was in a safe enough place to pull over, everytime I pressed on the gas it would get super lean, like 17-18 on the af gauge. Luckily enough I had the previous owner of the engine’s chipped ecu which basically pours fuel into the cylinders. I managed to get home but not quickly lol. It wouldn’t hold an idle and had to bump start it a couple times, due to it running so rich. (9-10-11 on the af gauge) So this leads me to believe that there can’t be anything wrong with the fuel pump or filter or pressure regulator or even any of the lines leading to the fuel rail. now that I’m home, the car is in the driveway smoking, burning coolant. There is no coolant leaks, other than overflowing out of the overflow canister behind the rad. Is there a logical explanation to why it would over heat and why the fuel system would get messed up like that if it does???