Odd fuel issue...

**kdick91** · 09-23-2009, 04:48 PM

When I leave my car more than 30 minutes, it has a hard time starting (even after priming fuel system 5 or 6 times), idles bad, then runs like a champ. I can cut it off immediately then fire it right back up though. It did throw two codes, P0200 (Injector circuit malfunction) and P1635 (5v reference circuit). I am thinking it is a bad ground SOMEWHERE (I checked the back of the head and that one was good) and I am at a total loss. So any input at all would be amazing!

Thanks,
Kyle

**0rion** · 09-23-2009, 05:43 PM

go to gearchatter.com and read the dtc guide for that 1635.... I just skimmed it and it could be a short somewhere. That 5v reference is for your tps, map, and egr.

**kdick91** · 09-23-2009, 07:05 PM

I read the gearchatter forum and I'm gonna try and troubleshoot some tomorrow...

**kdick91** · 09-24-2009, 08:54 PM

OK. I got a fuel pressure gauge and monitored it all day. It is EXACTLY where it should be. When the car is off, it never dips below 30PSI. Still extremely stumped...