Chevy and GMC Duramax Diesel Forum banner


  1. P0093 Large Fuel Leak + Limp Home

    911 Problems Forum
    I know you guys are going to look at my post count and just tell me to search. I have looked through your forum for the last hour and I couldn't find anything that I haven't tried already so I am going to make a new post and hope I don't get flamed for it. Anyway here goes... 2001 Chevy...
  2. P0093/94 codes

    01-04.5 LB7 Duramax Powertrain
    Anybody seen a TSB on LB7's throwing P0093/94 codes (small/large fuel leak)? My truck has a strong but stock primer pump, starts easily under all conditions, but I'm having trouble with it throwing the code(s) and going into limp mode. I shut her down wait a minute, restart and everything is ok...