Causes for a P0174 Code?

[gavin]

I have these same 2 codes and have searched and searched and cannot find the troubleshooting tree you refer to. In fact, if you search all the forums for p0170 I get 0 results. Maybe the search function isn't working? Maybe is is just me.

If someone knows where I can find the troubleshooting tree, I'd appreciate the help. I'm going to tackle this issue this weekend and will have very limited time, so I'd love to have as much info as possible ahead of time.
Thanks,
John

you want to search for p0171

 

[burtonbrd138]

ok. I drove my truck on the highway and the thing was surging like crazy. i was going 55 and it would not go any faster! I will get the codes read tomorrow. I really need help with this truck. Is anyone interested in visiting my house? I will give a free tour of boston

 

[burtonbrd138]

ok so i have a cylinder 4 misfire and a P0174 Bank 2 Lean. I pulled the fourth cylinder spark plug and i smelt like coolant. Indeed it is a blown head gasket. That explains that surging and complete loss of power over 35mph. The rpms dont pick up after in overdrive. SHould i go for it for a DIY job? I have a friend that is a UTI student and know a thing or two about engines.