2000 silverado

[mckay99]

I just want to say that i LOVE my predator it really brought my truck to life.my mileage has increased 1to 2 mpg also.my truck has Airaid cai,tbs,flowmaster duals,accel extreme 9000 plug wires and ac iridium plugs.do i need a custom tune with these mods because i can't believe this truck could run much better than the diablo tune.I only have one problem.My truck is not starting like it did before adding tune.it is turning over about 5or more times instead of 1 or 2.I am not saying the tune did this but could it affect the starting.someone please let me know any info would be greatly appreciated.I have the U7198x.rev 9r17

[mckay99]

the starting problem was my fuel pump bleeding off. runs awesome now. LOVE THIS TUNE!

[Wireman134]

bump What would you MPG be may we ask?

[mikel]

Any mods that you did around the time the starting issue appeared?

[mckay99]

18 hwy 16 city.no mods recently just the tune but I guess it was just a coincidence that the fuel pump went bad.After changing pump it runs great.the pump was 4 yrs old it was a delphi so thats what I put back in it.I couldn't be more satisfied with the DS tune. It is amazing the difference it made,and you get better mpg WOW.I changed the fpr and IAC but it was the pump.Should be good to go now.

[mckay99]

bump What would you MPG be may we ask?

18 hwy 16 city.I gained 1 in city and 2 hwy not bad for 4wd that runs this good.My truck is also a Z71.

[Wireman134]

Got back from 1900 mile round trip to the Black Hills towing a 2000 lb. pop up. Averaged around 16 mpg. pulling at 60-65 mph. Best tank was 17+ mpg. Using 87 to 89 octane with the 93 tune very little KR(2*) with most of the fuel out west. Got a piss poor batch in Wisconsin pushing the KR to 7 at time during inclines, just before cruise control down shifted to 3rd.