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#1
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poor fuel economy
my 92 svx lsl awd is getting horrible fuel mileage. i get about 125 miles per tank where do i start and what do i do. it's got 99,000 miles and the previous owner had the o2 sensors changed at 80,000. i just had the plugs changed about 4,000 miles ago. also sometimes it will randomly stall at low engine speeds like when i come up to a stop sign, this has only happened about 4-5 times. and one more thing some times in the morning when i start it it will have a little bit of blue smoke from the exhaust. thanks in advance Curtis
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#2
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Check all hoses
It sounds to me that at least a place to start is checking all the vacuum hoses. you might also want to check the MAF sensor and the air filter. then try to figure out if the fuel pump is dead or the fuel filter is stuffed.
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'92 LS-L, exhaust, intake, audio, ecu 1V4?, hyper ground kit. Next changes ... PAINT, fix engine problems, 4.44. (GONE) '97 Impreza Outback Sport, magnaflow muffler, cold air intake, Alpine Type S, MP3/iPod deck, NGK wires, etc.(GONE) |
#3
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I suggest that you look under the snorkle were it clamps to the throttle body as they generally fold over then suck air in. This will cause the blue smoke. Use a mirror to look underneath.
Tony
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1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX. 1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC) 1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car. 1995 - SVX Green low k mint condiation. 1995 - SVX Rally car, ex Matts car. Now to be used on track. 1992 - SVX red & Black being converted to Mid Engine. 1995 - SVX Red 143,000 bit rough. Owned 5 others Subaru back to a 1974 1400 GSR. |
#4
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Quote:
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#5
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I Checked The Fuel Pump And Its Got The Right Pressure And Volume So Thats Not It
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#6
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put in a new fuel filter and cleaned the maf sensor and the milage went from 14 to 19mpg highway. it used to get between 22-24. anymore ideas? also checked the wheel bearings and they seam to me good
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#7
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Quote:
Logic would indicate that you improved something. Most likely cleaning the MAF sensor had the major affect. Cleaning may have helped, but not restored it to normal. You could try cleaning it again in the hope of further improvement. However you may need to replace it.
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Trevor, New Zealand. As a child, on cold mornings I gladly stood in cowpats to warm my bare feet, but I detest bull$hit! |
#8
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What did you use to clean your MAF sensor? Just curious as I think I need to clean mine. Sorry to get off topic.
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#9
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Are you using premium fuel? I tried regular for awhile and my mileage dropped. Switched back and all is back to norm.
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