 » Site Navigation | | | | » Recent Threads | | | 1999 M3 Swap 09-07-2023 10:10 PM 05-02-2024 08:18 PM 6 Replies, 405,367 Views | |  |  |  | |  05-02-2009, 05:00 AM | #1 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |  Extreme MPG suckage!!
Just filled my tank a few minutes ago. I reset the odometer. I get home and look down. I drove 10.8 miles, and my tank is already 1/8th's empty. Wtf?!
Somethings to know:
No check engine light.
No cracks in my boot.
Spark plugs and wires replaced last year.
Checked tire pressure last week.
My cat is slowly going bad.
I just recently replaced my front brake pads and rotors last night. __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | |  |  | | 05-02-2009, 05:07 AM | #2 | | Senior Member Join Date: Jul 2007 Location: norcal - 94590 Posts: 3,186 |
o2 sensors going bad in conjunction with a failing cat will kill your mileage... __________________ James 95 active w/leather interior and sport interior conversion, Vaders, full M-Tech exterior conversion. Now m50 swapped* Eibach sway bars, D2 Coilovers, Depo's w/AE's, blacked-out sides and grills, LeatherZ console and door armrests, 1 series starter button mod, and custom finished Style 5's <--- in this color! Named "Roddy":  *M50 6 cyl. swap with fan delete, S50 cams and chip, AFE stage 2 intake, M3 clutch and 11.5 lb Fidanza flywheel, 3.15LSD, battery relocated to rear and complete custom exhaust. Sweet!  97 318ti sport, Alaska Blue, Contours, coilovers, Dove Vaders and custom black/grey interior named "Max" 95 318ti Active in Cosmos, S50 swap in progress... named "Pit" SUPPORT 318ti.org! CLICK THE LINK ABOVE! Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW! | | | | | 05-02-2009, 05:11 AM | #3 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |
Good call James. And would it be ok if I took it off another ti from a junk yard? __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | | | | | | 05-02-2009, 05:19 AM | #4 | | Senior Member Join Date: Jul 2007 Location: norcal - 94590 Posts: 3,186 |
Could be ok, it's always a gamble taking that stuff off junk cars though... __________________ James 95 active w/leather interior and sport interior conversion, Vaders, full M-Tech exterior conversion. Now m50 swapped* Eibach sway bars, D2 Coilovers, Depo's w/AE's, blacked-out sides and grills, LeatherZ console and door armrests, 1 series starter button mod, and custom finished Style 5's <--- in this color! Named "Roddy": *M50 6 cyl. swap with fan delete, S50 cams and chip, AFE stage 2 intake, M3 clutch and 11.5 lb Fidanza flywheel, 3.15LSD, battery relocated to rear and complete custom exhaust. Sweet! 97 318ti sport, Alaska Blue, Contours, coilovers, Dove Vaders and custom black/grey interior named "Max" 95 318ti Active in Cosmos, S50 swap in progress... named "Pit" SUPPORT 318ti.org! CLICK THE LINK ABOVE! Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW! | | | | | 05-02-2009, 06:12 AM | #5 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |
But wait, wouldn't a bad o2 send off a CEL? The o2 always went out on my sentra, and it would throw a CEL. __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | | | | | | 05-02-2009, 11:17 AM | #6 | | Member Join Date: Feb 2009 Location: Beebe, Arkansas Posts: 52 |
Nope mine was running hell of a rich and the new sensor fixed it no cel light __________________ And I looked, and behold a pale horse: and his name that sat on him was Death, and Hell followed with him. And Mpower was given unto them over the fourth part of the earth, | | | | | 05-02-2009, 11:22 AM | #7 | | NOBODY F's with the Jesus Join Date: Oct 2006 Location: Ventura California Posts: 7,824 |
Quote: Originally Posted by Maverix  I just recently replaced my front brake pads and rotors last night. | Check that first. Possibly a dragging pad or stuck caliper  Drive it around the block a couple times, make a few normal stops, put it in neutral and coast. See if it stops or pulls without applying the brakes. Then get out and feel around the front wheels. Don't touch the rotor or caliper because it will be scorching hot. If you notice one is significantly warmer than the other, check your tire pressure, I bet it's almost double what it's supposed to be. | | | | | 05-02-2009, 10:40 PM | #8 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |
Quote: Originally Posted by cooljess76 Check that first. Possibly a dragging pad or stuck caliper Drive it around the block a couple times, make a few normal stops, put it in neutral and coast. See if it stops or pulls without applying the brakes. Then get out and feel around the front wheels. Don't touch the rotor or caliper because it will be scorching hot. If you notice one is significantly warmer than the other, check your tire pressure, I bet it's almost double what it's supposed to be. | When I put it into netrual it stops. The driver side is warmer. I checked my tire pressure, and they're coming up fine. On the pads, the tip closest to the hub is slightly touching the rotor. How do I undrag the pads? __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | | | | | | 05-02-2009, 11:40 PM | #9 | | Senior Member Join Date: Apr 2006 Location: Oxford, Ohio Posts: 868 |
before you over-react... run this tank close to empty and refill. Then check the miles travelled vs gallons to fill and get a real MPG reading. For all we know, you have a guage the reads funny at the top end. | | | | | 05-03-2009, 12:42 AM | #10 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Fuel hose leak between pump and regulator is my guess. No way to burn 1/8 tank in 10 miles unless it's a gauge issue | | | | | 05-03-2009, 01:36 AM | #11 | | Senior Member Join Date: Apr 2006 Location: San Diego Posts: 231 |
Someone siphoned off a couple gallons | | | | | 05-03-2009, 01:41 AM | #12 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |
Quote: Originally Posted by bmvw Someone siphoned off a couple gallons | While I was driving? I didn't have a single car behind me for 95% of the drive.  __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | | | | | | 05-03-2009, 01:45 AM | #13 | | Moderator Join Date: Mar 2007 Location: Maryland Posts: 3,220 |
maybe you were street racing again.
jk | | | | | 05-03-2009, 01:55 AM | #14 | | Senior Member Join Date: Apr 2008 Location: Austin Posts: 3,059 |
As much as I'd love to, and be glad to admit it, I didn't race. I was driving like a human being for once. And I was driving through a neighborhood. Not much space to race. __________________ Come get a ti-shirt
Quote: | From the e30 M3, evolved the e36.
They were "Keepin it Real" when they introduced the 318ti ClubSport in '95 and the 318ti Sports from '96 to '99.
After that... well nothing else really matters. ~Jess | | | | | | 05-07-2009, 10:58 PM | #15 | | Senior Member Join Date: Jun 2006 Location: SOUTH Jersey Posts: 1,085 |
well? it has been almost a week... | | | | | |
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