Just took a trip with the dually and only got 13.6mpg. Is this normal? The truck has 110hp stix hx-40 fass 150. It has an old fass fuel filter, New air filter 3.55 gears and 255/65 bfg mud terrains. Some info would be great.Also the tps sensor is acting goofy, the pedal will go dead and then if you tap it twice it will come back. It also has a JVD torque enhancer and a egde ez



TIA

 

chris dont ever get rid of the jvd box well talk about it later

danny

 

I have the same problem and I talked to chip at bluechip and he told me the vp is most likely on the way out. Check your codes and see what you got

 

u sshould be getting a lot better then that.. im getting almost 18 with bad timing

 

The pump is a reman with 10k on the clock. The code is only the tps sensor. The truck is also running a little on the warm side, like 800* cruising @ 75mph. I tHink I'm gonna try my friends injectors and see if one of mine are leeking. Whats up Danny?

 

Try cleaning the iat and map sensors. Lots have seen beter milage after doing that.

 

What is the "IAT" sensor

 

i do believe it means intake air temp