wtf is the problem

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916drifter
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I put in new plugs and wires, 02 sensor, furl injectors, oem exhaust manifold and new fuel filter. and im getting even worse gas milege. I drove about 1/2 mile and lost about 1/2 gallon. what the hell can the problem be??!?!?!?!? any help please.!!!


astron
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fuel leak?

Squirrel
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It could be a damaged fuel injector seal. They are very easy to damage while putting the fuel injector in. This will allow gas to leak around the injector. However if this is it I would expect the car to be idling fairly rough. I damaged a seal when putting my fuel injector in and I got crappy gas mileage and a rough idle. If this is it, when replacing the seal try and put a SMALL amount of grease on the seals. This worked for me and the injector went in much easier as well.

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916drifter
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i dont smell any fuel though and when i have to smash my breaks at a yellow loght some times , the fuel goes down a lot too

Squirrel
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You might not necessarilly smell gas, it would depend on which seal is damaged. In my case it was the lower one, allowing fuel to go into the intake manifold. If it is the upper seal it would leak out of the fuel rail and you would definitely smell it. I only noticed that the exhaust smelled very rich. It doesn't look like this is your problem though. To make you fuel level go down noticieably on your gauge in that short of time it would be losing fuel at an alarming rate, and you would smell it no matter where it was coming from. It could be your sender. Are you sure you have the same amount of gas in your tank that the gauge says?

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916drifter
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My float is broken cuz if i turn left or right it goes up and then when i striaghtin out, it goes back down to where it was. Where can i get a float for my gas tank and is it easy to replace? When i fill up at the gas station its a crap load of gas to put in. When i start my car, i lose a lot of gas also. Which part of the fuel Injectors should i check? and what should i look for?

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fiznat
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you dont smell gas anywhere? what if you let it idle in one place for a while, maybe rev it? what is the color of your exhaust? etc etc I donno haha the fuel has to be going someplace!

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916drifter
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The exhaust fumes r white. and it does kind of smell rich. my ground wire isn't there either. so would that b a problem too? and would my striaght pipe exhaust b a problem also? my throttle body is really clean and my intake manifold looks new cuz i bought the car back in may.

Squirrel
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To check injector seals you would have to pull them out and simply look to see if there are any tears or other damage to them. They are kind of a pain to get out sometimes. But if your leaking the amount of fuel you say your losing past the injectors, your motor would be running terribly. I don't know why I didn't suggest this before, but examine your plugs, if they are really black your running rich on all cyclinders. If its a leaky seal then one plug should be worse than the others because that cylinder should be running extremely rich. But I agree with fiznat that the gas has got to be going somewhere.

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916drifter
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yea the gas has to b going somewhere. and i took my old plugs out and they were a little black. my motor seems to run fine cuz i maintian it well. other than that its this problem thats been pissim me off since the end of summer. and for the last 3 months ive been trying to figur out the problem and all my mechanic says is that its my striaght pipe exhaust after the cat. he says i get 23mpg when i tested it and did the math and i get 17 mpg.

NISTECH
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your float movement is not abnormal. you are seeing fuel slosh when the level changes on turns.

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916drifter
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Fuel slosh? what do you mean by that. Anyways i drove 50 miles today and wasted 1/4 of a tank. and im shifting at 2100rpms and no lead foot. my mechanic said it mite be my ect. i tried to look for it but couldn't find it. anyone have a picture of it and where its located at.

MasterMan
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fule slosh means that when u turn the fule moves to one side of the tank just like if u put water in a wheel burrow and move it the water will move everywhere, tho i dont think your guadge would move that much because even when i drift and such my guadge dosnt move a whole lot.. i would guess its your float, and also if your exaust fumes are white that means your burning oil..

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916drifter
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i know its not abnormal for my gauge to move around but its a lot and then when i brake it goes down and then it stays there. and why the hell am i only getting 15mpg?!?!?!? this is really pissing me off. i just checked my engine and everything is oki and the furl injectors have no leakes any where and my fuel filter is brand new. so what the hell s problem.

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Axel Grungy
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you said your engine ground isnt there?? id replace that asap. that could be half your prob right there. one of mine had fried and i had horrible mileage like you

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916drifter
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ok ill do that but i read on another board that he ground doesnt matter and it doesnt do anything.

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Axel Grungy
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which ground are you talking about?? your engine grounds are really important, bad ground could mean your car isnt getting a strong enuf spark.....

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916drifter
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after the cat ground. some said is doesnt matter and it wont effect anything. but i read on overboost.com that if its not connected then u lose economy/power. so i dont know. i asked my mechanic too and he said it shouldnt matter either. i think it is the ground cuz thats the only thing left i can think of.

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Axel Grungy
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yeah i dont think that does much, mine has fallen off. i was under the car the otherday and noticed that, i had never heard of grounding exhaust either lol. but id double check your engine grounds if you havent already. they can screw up alot of stuff if there crappy. good luck

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916drifter
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where are they located cuz im not the engine expert but i know enough to help.

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Axel Grungy
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on my dohc, theres neg battery goin to the battery tray. one on backside of motor, drivers side goin to firewall. and on from intake manifold passenger side goin to shock tower. i dunno if there different on the sohc tho, HTH

sc0rp
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check the MAF, fixed mine and sounds very similar

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PalmerWMD
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bad MAf connectors?

Fred..:)

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drifter sx
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fuel pump maybe?

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916drifter
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how would u fix the MAF? or just go buy a new one? and now my car is burning oil so how can i fix that? and it struggles to start now too. it like starts then it drops to 500rpm then goes to 1000rpm for awhile then drops back down to normal. and when i drive, it idles at 900rpm sometimes. and i just got my timing checked too.

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Axel Grungy
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just clean all connections, and tiny wires inside mafs with qtip and brake cleaner. if your burning oil your piston rings are prob toast, or possibly valve seals.

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916drifter
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white smoke is burned oil right? how much for some seals or new rings?

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Axel Grungy
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white smoke=headgasket......blue smoke=oil

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916drifter
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so new headgasket

NISTECH
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depending on how thick the smoke is is weather or not its a head gasket. if the white smoke is thin, almost grey in color it could be fuel vapor from buring to much fuel. start by checking your coolant temps electrical connection for corrosion clean any found . then if this doesnt take care of it. Check the ground on your MAF with a volt meter. Do a voltage drop test on the ground while the car is running. if it is more then .02 volts you need to supply an ADDITIONAL ground to the existing ground and run it to the intake manifold. You will also want to check your signal from the MAf that goes to the ECM it should be around 1.3 to 1.5 volts at idle. any higher and it will cause the injectors to deliver to much fuel. Only check the signal wire after assuring the ground circuit is good.


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