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im tired of this stupid gas milage!!!

BlackGT97

BlackGT97

New member
Right now im getting around 260-280 Miles/tank. I was getting close to 400 miles/tank. I have no idea what it could be. I have replaced the plugs and wires, have open cone filter, replaced the Idle air control sensor (when i first got it), new fuel filter, new tires and alightnment, new filler neck for gas tank. and seafoam in the cylinders and gas but not the crank case.

now. I had an SES light on. codes were for an o2 sensor, iat, coolant temp, and misfire. but the SES light went of and has stayed off. Should I replace all of these?
Another question. The vacuume kit from zzp, does it come with the plactic fittings, or do you just push on the line (on the metal fitting on like the TB)?
 
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Gas mileage should go a down a little in the winter, but a bad o2 sensor is going to make it run rich/lean possibly causing the misfires. Replace the o2 and iat sensors and clean the coolant temp sensor or replace it. See what happens then.
 
ooooo....missed the question there. just becuase those codes pop up, doesnt mean the stuff is actually bad. It may be a vacuume leak which will cause multiple codes to go off.

i was asking if i should replace them sensors even thought the ses light is already off. and i would like some info on the zzp vacuume kit...pretty please lol
 
THere would be no need to replace them if they aren't broken. Find you vac leak, cause its probably whats causing your starting issues as well.
 
The seafoam can cause a couple of those codes(especialy the 02). I wouldn't worry about it unless they come back on. Cone filter hurts mpgs in the winter. the cold is the biggest factor. warming the car up to defrost windows ect... and the fact that the car will naturaly use more gas when its cold out.

As far as the question about the zzp product... email them. they are pretty fast with their replies...

you'll more than likely get your mpgs back come spring... just the way of it... always get a lot of people in the shop worried about the loss of mpgs come winter.
 


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