help...code P0656

[DOUGLASMELTER]

got new gas cap last night..oem style because my fuel trims went crazy with different levels of gas in the car...full tank id see numbers like -18 and when almost empty id see lean...gas cap was bad. ran car for an hour last night and she looked good. drove for an hour this morning and good....drove now and +7 fuel trims and now this code and lack of power....dont think the computer is letting it go into power enrich mode.....is this the gas cap or something else

[DOUGLASMELTER]

to save you all the trouble of looking it up code means "fuel level output circuit malfunction

[Reptile]

From what I gather, this is some type of voltage malfunction between the fuel level sender, PCM and the cluster. Weird, I've never seen this one before.

[DOUGLASMELTER]

then thats it ordered rebuild kit for alternator yesterday too as a few days ago i was getting 9.2 volts form it....thanks

[DOUGLASMELTER]

its all this things fault....i got a 200 amp rebuild kit coming