One day my cars running fine, but the next day I go to start it and it starts up to about 1500rpm and then immediately dies. So I research and everyones saying idle air control valve or air regulator.. So I clean and check them, but I cant quite understand how to make the air regulator modulate - so assuming mine died, I go to replace it with another regulator.
I get the same results with the different regulator - the car starts up fine and sounds good (no missing or misfiring), but as soon as it hits about 1200-1500rpm, it immediately dies.
Here's where it gets weird - I initialize the PFC and the car starts right up. I load my previous map back on and it's as if nothing was ever wrong to begin with. I drove it around the block and everything seems fine, but I have yet to let it cool down and retry the cold start.
As a side note - I have an FPR, so I can see I have good fuel pressure. It's almost as if the computer was going through the startup sequence and as soon as that's done, it stops all other functions.
