So, I have a bit of a mystery for you guys. My car likes to stall every now and then, and I'm stumped as to why. From a cold start, it starts out fine. Once it's fully warmed up, it's also fine. However, in between then, it occasionally bucks and stalls like it has a misfire. It idles and runs just fine until it gets into these fits, it's the strangest thing. Here's the list of things I've learned so far:
-Fuses are all good.
-Battery cables/terminals are clean and free of cracks/corrosion.
-IAC is clean and functioning normally. I can hold the throttle open, and the problem persists.
-I'm reasonably sure the injectors are working normally, but I don't possess a noid light.
-TFI module is new, as is the coil, spark plugs, and wires. These were replaced since the car had been sitting and wouldn't start when I bought it. They are off brand; however, the car didn't run at all until i replaced the TFI module specifically, so I'm fairly sure it's doing what it needs to do.
-I could not find a vacuum leak, though that doesn't necessarily mean there isn't one :/
-There are no outstanding power draws, but i did notice the battery voltage hangs out around 13.2 at idle with the alternator loaded (lights on, etc.). Alternator tested good at my local parts store, battery is 3 years old. I also noticed loading the alternator tends to exacerbate the problem.
-I pulled the KOEO codes. I got 11 at first, and an 18 that was stored. This is my only real lead. That being said, the battery has been disconnected, and hasn't been driven much since then, so it really doesn't have a chance to store any other codes right now.
-Fuel pressure checks out, have 40 psi with the regulator disconnected and vacuum line plugged. It also isn't leaking fuel anywhere I can find.
I'm stumped. Like I said, it starts just fine, and runs smooth cold and after fully warmed up. Just that in between stage... I suppose my first question is how long can the computer take to calibrate? Could this be a thing I need to drive out of it? Otherwise, what should I check? My mind says PIP sensor, but it isn't really exhibiting the typical problems that would cause. Any help would be greatly appreciated.
-Fuses are all good.
-Battery cables/terminals are clean and free of cracks/corrosion.
-IAC is clean and functioning normally. I can hold the throttle open, and the problem persists.
-I'm reasonably sure the injectors are working normally, but I don't possess a noid light.
-TFI module is new, as is the coil, spark plugs, and wires. These were replaced since the car had been sitting and wouldn't start when I bought it. They are off brand; however, the car didn't run at all until i replaced the TFI module specifically, so I'm fairly sure it's doing what it needs to do.
-I could not find a vacuum leak, though that doesn't necessarily mean there isn't one :/
-There are no outstanding power draws, but i did notice the battery voltage hangs out around 13.2 at idle with the alternator loaded (lights on, etc.). Alternator tested good at my local parts store, battery is 3 years old. I also noticed loading the alternator tends to exacerbate the problem.
-I pulled the KOEO codes. I got 11 at first, and an 18 that was stored. This is my only real lead. That being said, the battery has been disconnected, and hasn't been driven much since then, so it really doesn't have a chance to store any other codes right now.
-Fuel pressure checks out, have 40 psi with the regulator disconnected and vacuum line plugged. It also isn't leaking fuel anywhere I can find.
I'm stumped. Like I said, it starts just fine, and runs smooth cold and after fully warmed up. Just that in between stage... I suppose my first question is how long can the computer take to calibrate? Could this be a thing I need to drive out of it? Otherwise, what should I check? My mind says PIP sensor, but it isn't really exhibiting the typical problems that would cause. Any help would be greatly appreciated.