dtom2500
Tom
could use a little help. 1995 2500hd 6.5 td keeps coding dtc 12 on more and more on start ups? sometimes while im driving with cruise on it will suddenly ocuure but it comes down to this, I can do either two things pull over pop the hood take a pen poke at the optical sensor/fuel temp sensor connector & filters or shut down and try a restart. It seems to be getting worse as the weather keeps changing? any ideas of what the problem could be.