Page 1 of 3 123 LastLast
Results 1 to 10 of 26

Thread: First fuel economy with 14CUX O2 sensors

  1. #1
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0

    First fuel economy with 14CUX O2 sensors

    OK filled the tank today as it is 118.5 today less 4.

    Same pump as last time, same amount of cutoffs.
    The car took 78.7Litres for 440Kms (odo corrected by 5% for 245.75x16)
    Calculates to 17.9L per100Km
    Previous 10 tanks approx 22l per100Km

    THAT IS 22.9%!!!!!!!!!!
    Now I know that one tank does not a summer make and there was 60K of highway work, followed however by climbing the Watagan ridge road.Otherwise a typical driving mix around the Central coast.
    This seems just too good to be true, but my experience suggests that I have not made major mistakes in filling etc.
    So I will watch and report on future results.
    The only thing I can think of is that the Unichip is somehow incorrectly set, and is now overidden by the o2 sensors.
    Remember mine is not a standard setup, but from my experience there appears to be benefits in economy from installing o2 sensors, as claimed by the Vic specialist.
    Regards Philip A

  2. #2
    Join Date
    Jan 1970
    Location
    Melbourne
    Posts
    330
    Total Downloaded
    0
    Its good to hear its actually saving you some fuel.
    Have you noticed any differences in engine performance?
    97 D1 V8 SE manual - loud & locked - RPI Optimax & some toys
    09 D3 HSE
    Sold and missed: 03 D2a V8 auto

    LROCV member

    I love it when a plan comes together!
    John "Hannibal" Smith

  3. #3
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    Have you noticed any differences in engine performance?
    I guess that its a bit "soggier" on light throttle, but this is good on mine because I have a large throttle body which was very touchy.
    The idle lopes a little bit, as I haven't moved the pot on my MAF to the recommended 1.8 volts. I have 4 hole injectors that make it a bit richer at idle, so I do not want to make it too rich.
    I think the theory is to make the MAF rich with O2 sensors and they take the fuel out, so it doesn't lean stall.
    At first I had a bit of stalling when putting in D when the engine was just warm, but this seems to have gone away, or I haven't duplicated the conditions.
    Full Throttle is no different.
    SO I am completely happy so far.
    Graeme Cooper warned me that on a standard engine, if you lived in hilly country you may not improve consumption, as you have to put your foot down more into the richer part of the fuel curve. But I think that you would gain economy in most circumstances.
    Regards Philip A

  4. #4
    bazooka Guest
    This is a topic close to my heart as I have a D1 V8 which usually gets about 22l/100 in stop start urban traffic, but on a freeway gets me 14l/100. I'm very interested in getting my urban driving consumption figure down.


    The 22l/100 figure you quote, is that urban driving or a bit of highway/bit urban?

    Please keep posting as you get more figures.

  5. #5
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    Urban in avery hilly area,The NSW Central Coast.
    I think I would burn the car if it got 22L per100 On the highway.
    Regard sPhilip A

  6. #6
    p38arover's Avatar
    p38arover is offline Major part of the heart and soul of AULRO.com
    Administrator
    I'm here to help you!
    Gold Subscriber
    Join Date
    Jan 1970
    Location
    Western Sydney
    Posts
    30,704
    Total Downloaded
    1.63 MB
    That's interesting, Philip.

    I wonder if it would work on the P38A. My car doesn't have O2 sensors but the wiring is in place for them. I don't know (Scouse/BigJon/Sniegy?) if the GEMS engine management system can be reprogrammed with TestBook to tell it that O2 sensors are fitted?

    I'm fitting one for the LPG SVI system when that's installed.

    Ron
    Ron B.
    VK2OTC

    2003 L322 Range Rover Vogue 4.4 V8 Auto
    2007 Yamaha XJR1300
    Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA



    RIP Bucko - Riding on Forever

  7. #7
    Join Date
    May 2007
    Location
    melbourne
    Posts
    66
    Total Downloaded
    0
    does a 96 disco have 02 sensors

  8. #8
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    14,152
    Total Downloaded
    0
    does a 96 disco have 02 sensors
    I do not think so. They are 14CUX same as RRC.
    Have a look at the exhaust pipes between the muffler and engine. Sensors stick out of each pipe and have wires coming from them. They are the only components with that appearance.
    Regards Philip A

  9. #9
    Join Date
    Jan 1970
    Location
    Central Coast, NSW
    Posts
    283
    Total Downloaded
    0
    Quote Originally Posted by PhilipA View Post
    Urban in avery hilly area,The NSW Central Coast.
    I think I would burn the car if it got 22L per100 On the highway.
    Regard sPhilip A
    Hi Philip, On LPG I'm getting approx 300k's to a 70 liters so that wortks out to be about 4.28k's/ltr or about 23k's per 100k's right?

    Are you saying that this sort of mileage is bad as I've never known anything different except the odd 5k's/ltr.

    Pete'

  10. #10
    Join Date
    Jan 1970
    Location
    Central Coast, NSW
    Posts
    283
    Total Downloaded
    0
    Quote Originally Posted by Frontier1 View Post
    Hi Philip, On LPG I'm getting approx 300k's to a 70 liters so that wortks out to be about 4.28k's/ltr or about 23k's per 100k's right?

    Are you saying that this sort of mileage is bad as I've never known anything different except the odd 5k's/ltr.

    Pete'
    Obviously I meant 23ltrs per 100k's ( and why does everyone always work on a liter rate per hunder rather than just k's per ltr?).

    Pete

Page 1 of 3 123 LastLast

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!