KingNasGS4

iTrader: (22)

So I did a full tune up less than a month ago. and I thought that doing one would help out my MPG atleast a little bit.

Ive done the fill up, use some gas, refill then the math about 2-3 times
and i get around 10 MPG. thats NO GOOD. better MPG was one of the main reasons I spent so much money on the tune up

so can ypu guys tell me what else is there to do to get better MPG?
I see people getting about 15-20 MPG whats going on with my car?

Bradster

Throttle body cleaning along with fuel injection treatment...

KingNasGS4

iTrader: (22)

did both already.

PureDrifter

iTrader: (10)

replace ECT sensor and make sure you have the right amount of coolant.

also, if you're handy with a multimeter go and check the output of your O2 Sensors.

renato902

Well, Pure is right, I was going to say the same. The best thing to do is check your oxygen sensors. BTW, are you getting a CEL? If so, do you know the code?

trukn1

When was the last time the fuel filter was changed as well? This is an often overlooked item.

LiCelsior

iTrader: (32)

i thought my 15mpg was bad...dammmmn.

KingNasGS4

iTrader: (22)

i dont get any check engine light so i never thought anything was wrong with the sensors.

i know the light works, for sure.
I feel like i wasted money doing that tune up. because i could have held off on that and fix the actual problem

PureDrifter

iTrader: (10)

what do you mean when you did a "tune up"?

LiCelsior

iTrader: (32)

tune up consists of spark plug change, spark plug wire change, air filter change, distributor cap and rotor change and sometimes a fuel filter change.

qewani1

PD, O2 readings in UC20 should be how much?
How to check the MPG?

LiCelsior

iTrader: (32)

to check mpg, fill up and reset ur trip meter to 0. drive until its almost at empty. then fill up and read the mileage on ur trip meter and look at the number of gallons of fuel u put in ur tank. take the miles and divide by the gallons of fuel. for example ill do mine: 250 miles to the tank divided by 17.8 gallons of fuel and that comes out to 14mpg.

whiteivory

iTrader: (4)

Jeez I still get 26 miles to the gallon on long hauls...

KingNasGS4

iTrader: (22)

yes a FULL tune up
that consisted of everything you mentioned. plugs, wires airfilter, etc. I know all of that was changed because they showed me all the old parts that were in there.

idk about fuel filter though. that i will have to check up on.
these guys are former lexus mechanics and good friends so I think they changed everything they said they would.

damon

Anyone familiar with code 2526 ? Is this a lean code??
Mt CEL is intermittent.