? on gas miles prob

[srt10viper]

Hey all im still trying figure out why with cat back exhaust only i get 8 to 10 miles gallon barely getting on it doing 60 to 70 and on gauge shows 200 miles to tank anybody else have this prob what could be problom

 

[VENOMOUS1 RACING]

Hey all im still trying figure out why with cat back exhaust only i get 8 to 10 miles gallon barely getting on it doing 60 to 70 and on gauge shows 200 miles to tank anybody else have this prob what could be problom

Dirty air filter, clogged cats (x4), plugs, O2 sensors. Could be many things. Do a self diagnostics on the PCM and see if any codes come up.

 

[srt10viper]

Yea i know when i do key no codes pop up

 

[viperhauler]

how many miles on the truck?

and is this mathematical or by the overhead console?

 

[srt10viper]

29000 miles and its by overhead console and when do math watching miles its about right

 

[runningonvenom]

Stop flooring it easier said then done I know

 

[srt10viper]

Lol funny cuz has nothing to do with that even babying it ita not getting gas miles it should

 

[runningonvenom]

I know I'm just giving u shit

 

[bosshawg806]

Have you tried resetting it cuz thats about what i average in city usually once i get out on the highway in do a reset and it jumps up to about 14-15 mpg

 

[srt10viper]

Yea i reset and thats what im averageing on highway

 

[srt10viper]

8 to 10 mpg highway in city between 6 and mid 7s

 

[SRT2SLOW]

does the truck have any mods or is it stock?

 

[srt10viper]

Only mods is cat back exhaust and k and n i have programmer but its not hooked up right now

 

[SRT2SLOW]

put some fresh oem plugs and maybe new o2 sensors....

 

[srt10viper]

Yea gonna do full tune up also where o2 sencors located and how to change much thanks

 

[runningonvenom]

I think there by the front cats

 

[SRT2SLOW]

Yea gonna do full tune up also where o2 sencors located and how to change much thanks

they are not too hard to change...go to a muffler shop...maybe like 50-80 bucks...the sparks plugs are easy....

 

[srt10viper]

Also how many 02 sencors are there i read on roe theres up stream left Nd right and down stream left and right

 

[SrtBrad]

Get high flow cats and forget about gas mileage. We don't have any green in our trucks except what comes out of our wallets for gas.

 

[SRT2SLOW]

Also how many 02 sencors are there i read on roe theres up stream left Nd right and down stream left and right

all you need to buy new is the upstream ones....put your tune from your sct and hopefully your good....also replace your tps....its only 20 from autozone...