[deeLow]

An intermittent slow crank.

Alright, so my car has been suffering from this for a few weeks now at random. I can hop in and immediately start the car without any wait and it cranks right away. Other times, I can wait with ignition on and it will crank slowly. Completely hit or miss.

Car currently has P2a2d - fuel pressure low - stored but no CEL. Code actually came up after I was playing with INPA trying to test the fuel system. Never really found what I was looking for and wasn't there before this. I've gotten the occasional 2aaf but its been a while for that.

So far i've tried datalogging it while it was starting and have gotten quick and slow cranks at different times. Under WOT on multiple different logs both fuel pumps show that they are having no problem keeping up with demand. See for self here.

http://datazap.me/u/kingdlo/some-pul...zoom=1636-1780
some pulls in here where you can see a run through the gears and pumps keeping up no problem

http://datazap.me/u/kingdlo/starting...h?log=0&data=2
Above log is some starting, and one where I launched the car, but thats not the issue here. You can clearly see pumps are putting out what the car requests if not more.

Sometimes I get a nice exhaust smell coming from the back after a longish crank.

I've narrowed it down to possibly leaking injectors where they are leaking after I shut the car off, but not sure how to really diagnose that. Or a possible bad LPFP sensor. I've read somewhere that when the sensor is bad it will request a constant output regardless of load instead of going up and down with request. HPFP goes up and down, LPFP does not. LPFP constantly requests about 72-73 or so no matter what.

Thoughts/suggestions? Anyway I can accurately narrow it down?

[deeLow]

Another thing I've noticed is when there is high humidity and the car has been sitting for a little while is usually always when it gives me the long crank. Low humidity or car was recently running within last 10 minutes no long crank.

[deeLow]

Up please help