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03-25-2010, 04:50 PM
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#1 |
 
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Was Getting 36 mpg, Now Its 23 mpg
This has happened two fillups now. The car sat for about 2 months Jan and Feb. I filled it up early March and got 23 mpg. Now it just dropped two bars after only 80 miles. It never did this before. No CEL. Engine runs and starts flawlessly. No leaks that I can smell or see. Im wondering: is there an OD on/off switch? I dont see one. I hate to bring it to the dealer cause I KNOW they wont find anything.
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03-25-2010, 04:53 PM
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#2 |
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Banned
Drives: '10 Yaris5drHB+99 4runner LTD Join Date: Sep 2009
Location: NE
Posts: 672
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od on/off is shift lever 3 to D (D is overdrive)
it sat for a while ? is the e-brake binding on the rear drums ? is the MAF clean ? (check it, usual poor mileage cause) go wind the crap out of it, run some Techron or BG-44k thru a tankful. (only these 2 products, all others are junk) |
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03-25-2010, 05:37 PM
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#3 |
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how's the oil level? if you had it in storage with the battery disconnected maybe the ECU is relearning
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03-25-2010, 05:40 PM
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#4 |
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Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Checked the MAF and it was clean. Only 4k miles on this car. Oil was just changed and its full. Battery always connected, but maybe something unlearned when it sat for 2 months. Parking brake seems nominal.
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03-25-2010, 06:12 PM
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#5 |
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Not really here...
Drives: 2008 Blazing Blue S hatchback Join Date: Oct 2008
Location: USA
Posts: 1,062
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I let mine sit for two months one time and it was fine so I don't think it was that.
Was it sitting outside the whole time is was sitting and if so what was the weather like?
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Liberate Tutemet Ex Infernis. |
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03-25-2010, 06:30 PM
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#6 |
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Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Yes it was outside Jan and Feb and it snowed something fierce!
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03-26-2010, 10:53 AM
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#7 |
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Drives: Yaris HB Join Date: Jul 2007
Location: Central Alabama, GOD BLESS AMERICA
Posts: 755
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tire pressures?
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03-26-2010, 12:25 PM
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#8 |
 Drives: S Flint Mica Join Date: May 2006
Location: Virginia
Posts: 209
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Winter/winds will definitely hurt the MPG and low tire pressure. But not to the extent you have seen. Are you sure your math is correct on the MPG?
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03-26-2010, 12:30 PM
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#9 |
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daily driver
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don't know about NJ, but it's stil cold here...my mileage is slowly getting better as the weather gets nicer...
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03-26-2010, 02:28 PM
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#10 |
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Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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Got a neighbor with a siphon hose?
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03-26-2010, 04:17 PM
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#11 | |
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Not really here...
Drives: 2008 Blazing Blue S hatchback Join Date: Oct 2008
Location: USA
Posts: 1,062
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Quote:
I didn't even think of that. Do you live somewhere where that might happen?
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Liberate Tutemet Ex Infernis. |
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03-26-2010, 04:46 PM
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#12 |
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Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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I've seen it happen. Wonder if it happened to my van in the driveway last summer.
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03-26-2010, 05:27 PM
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#13 |
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Not really here...
Drives: 2008 Blazing Blue S hatchback Join Date: Oct 2008
Location: USA
Posts: 1,062
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Yeah what part of Jersey are you in? A bad part?
Gas prices on the way up your going to start seeing more theft.
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Liberate Tutemet Ex Infernis. |
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03-26-2010, 08:14 PM
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#14 |
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Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Im pretty religious about tire pressures. Theyre always 35 psi. How would a siphon get past the gas flap lock (no obvious signs of forced entry) Im mean if they ARE siphoning theyre only getting like 1 or 2 gallons.
I work in Camden NJ. Its better now but 25 years ago it was pretty scary. Downtown (where I work) is safe (for the most part) but stay out of the neighborhoods! |
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03-26-2010, 09:39 PM
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#15 |
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Drives: 08 Yaris sedan auto / Fit auto Join Date: Oct 2009
Location: northeast
Posts: 2,897
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think I saw when gas prices were at $4 and up people would puncture the gas tank for fuel
 . They would steal the catalytic converters for the metals platinum , palladium , and rhodium . Desperation rules . 
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03-26-2010, 10:15 PM
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#16 |
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Drives: '09 Yaris LB Join Date: Dec 2008
Location: NYC
Posts: 152
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I just installed a sway bar and exhaust and have been doing some shorter/fiercer trips. I just filled up...106 miles and 4.5 gallons.
 Its probably just me, but unless I'm on the highway (where i get 39+mpg) I've never had a city tank over 30. |
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03-27-2010, 10:04 AM
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#17 |
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Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Maybe they are putting more alcohol in the gas...
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03-27-2010, 11:32 AM
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#18 |
Drives: yaris 08 sedan Join Date: Oct 2008
Location: Montreal Canada
Posts: 1,286
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Could be unphazed diodes in the Turbo Encabulator
http://www.youtube.com/watch?v=rLDgQg6bq7o |
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