Sugar In Gas Tank?

[kristenc]

Could sugar in my gas tank cause this? I have a 2002 GMC sierra 1500 5.3 and it runs like crap. The check engine light blinks and the codes are PO174B-Fuel trim lean bank 2, PO300B- misfire detected, PO151B-HO25 circut low voltage B251. I just replaced the intake manifold gaskets and it runs the same. I cant go over 70mph and thats with the rpms between 400 and 500. We are having a hard time figuring out the problem. It has a new fuel pump, fuel filter, new plugs and wires. Any advice?

[DofD]

I would venture a guess that the PO151B-HO25 circuit low voltage B251 is causing issues with the fuel injectors resulting in the other codes. I'm not sure what PO151B-HO25 circut low voltage B251 refers to exactly but I would suggest looking into that one more.

[pwall]

Have you tried testing the O2 sensors as advised in other posts ?

[kristenc]

Have you tried testing the O2 sensors as advised in other posts ?

 

 

I am doing it this weekend and will let you know thank you

[jhm]

Could sugar in my gas tank cause this? I have a 2002 GMC sierra 1500 5.3 and it runs like crap. The check engine light blinks and the codes are PO174B-Fuel trim lean bank 2, PO300B- misfire detected, PO151B-HO25 circut low voltage B251. I just replaced the intake manifold gaskets and it runs the same. I cant go over 70mph and thats with the rpms between 400 and 500. We are having a hard time figuring out the problem. It has a new fuel pump, fuel filter, new plugs and wires. Any advice?

sugar in a gas tank dosen't do anything. Urban legend.

[slemmer]

Could sugar in my gas tank cause this? I have a 2002 GMC sierra 1500 5.3 and it runs like crap. The check engine light blinks and the codes are PO174B-Fuel trim lean bank 2, PO300B- misfire detected, PO151B-HO25 circut low voltage B251. I just replaced the intake manifold gaskets and it runs the same. I cant go over 70mph and thats with the rpms between 400 and 500. We are having a hard time figuring out the problem. It has a new fuel pump, fuel filter, new plugs and wires. Any advice?

sugar in a gas tank dosen't do anything. Urban legend.

 

 

+1. They did a segment of this myth on Mythbusters and it was Busted.