Once the car warms up, it runs fine idling while parked, but when I put it in gear is when it begins to stall, and then when I press on the accelerator it feel like something is not not right, like a delay in acceleration, but that might be because the engine is beginning to stall out before I hit acceleration. I don’t notice this delay while throttling in park.
I put in STP Fuel Injector Cleaner…