Hey guys, I bought a 95 del sol si about a month ago, and in the past couple weeks it has developed a stalling issue. From the time it started stalling to now, I have replaced the distributor cap and rotor, plug wires and plugs, and replaced the fuel filter. So far what I’ve discovered is it only stalls after sitting overnight, and will not start again unless you turn the key to the off position and back on. So it will stall on the way to work, but no issues on the way home. It will also stall again if you start it back up immediately, but will run fine if you let it sit for about 30-45 seconds. Im not sure of what temperature it’s at when stalling, because the temp gauge is busted. Temp gauge will move to operating temp if ac is on, and all the way cold if heat is on. My guess is a sensor is the root of my issues since I have to turn the key to off or it wont restart. Thanks in advance for any help.

I have not been swapping random parts, I have been replacing parts because they needed to be replaced, not because I thought they were the issue. I stated they were already replaced so people wouldn’t do exactly what you just did and suggest checking spark and fuel pressure. I’ve already done all that, and thus replaced the parts because I was having fuel pressure and ignition issues, and those parts were the culprits. I am also currently diagnosing the problem, and don’t need advice on how to diagnose the issue. What I’m asking for is advice from anyone that may have had this particular issue before, and specific parts to test first, or any common issues that could cause my problem.