i do not understand it my engine light comes on without a load on my pickup and goes off when i put my trailer iam showen p0148 on code which is fuel develery i have changed filter and checked for leeks pickup runs fine i just ignore the code its to far to the delership and i dont really wont to mess wiyh them any ideas????

 

Perty sure that is the dreaded LP code. It kicks this out when it is about to go out. Hopefully you haven't had the new in tank LP installed.