1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site
    Quick Links: Need sliders but not for that reason.. What type of spark plug should I buy for a 2TR-FE engine? Antennas OBD Fusion App With Veepeak OBD Scanner Adding wiring for a bed winch -- fuse and ground location questions Transmission- 5 Speed automatic write up with pics for second gen 4 liter trucks

Volant Lean Fix

Discussion in 'Technical Chat' started by mudthedoor, May 4, 2012.

Page 1 of 2
  1. May 4, 2012 at 8:51 AM
    #1
    mudthedoor

    #1
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    I installed my Volant CAI yesterday and noticed immidiatley that it was running lean via my ultra gauge. There where a couple things that I tried today to improve it and it worked!

    1. Make sure that the MAF is perfectly level, both in the MAF housing and how the air duct is rotated.
    2. I went to napa and bought a complete vaccume hose for the FPR so that you arn't any longer using a butt joint between two hoses

    Next I might try to make an insert to go in the Air duct by the MAF to reduce the cross section of the duct.

    BTW I was at a fuel trim of about -20 to -18 and now I'm sitting about -7.5 to -10!
     
    mudthedoor, May 4, 2012
    #1
  2. May 4, 2012 at 8:54 AM
    #2
    chris4x4

    #2
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Long term or short term trims?
     
    chris4x4, May 4, 2012
    #2
  3. May 4, 2012 at 9:08 AM
    #3
    mudthedoor

    #3
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    These are long term sorry
     
    mudthedoor, May 4, 2012
    #3
  4. May 4, 2012 at 9:10 AM
    #4
    chris4x4

    #4
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    What are the short terms? On average?
     
    chris4x4, May 4, 2012
    #4
  5. May 4, 2012 at 9:12 AM
    #5
    mudthedoor

    #5
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    They tend to range from 1 to -5 I would say around -3.5 on average.
     
    mudthedoor, May 4, 2012
    #5
  6. May 4, 2012 at 9:14 AM
    #6
    chris4x4

    #6
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Ok....so the short terms arent affected too much, but the LT trim is. Interesting.
     
    chris4x4, May 4, 2012
    #6
  7. May 4, 2012 at 9:16 AM
    #7
    mudthedoor

    #7
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Yea I dont get it either...
     
    mudthedoor, May 4, 2012
    #7
  8. May 4, 2012 at 9:17 AM
    #8
    mudthedoor

    #8
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    I will gather more data to be positive but im fairly sure that is correct
     
    mudthedoor, May 4, 2012
    #8
  9. May 4, 2012 at 9:21 AM
    #9
    chris4x4

    #9
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Those numbers are indicative of running rich......Negative being the amount of fuel trim the computer is taking away. Whats your O2 sensors reading? Regardless.....as long as they are in single didgit readings, you should be fine.
     
    chris4x4, May 4, 2012
    #9
  10. May 4, 2012 at 9:55 AM
    #10
    mudthedoor

    #10
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Exactly the maf is reading wrong and causing the motor to trim down the amount of gas possibly?
     
    mudthedoor, May 4, 2012
    #10
  11. May 4, 2012 at 9:58 AM
    #11
    mudthedoor

    #11
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Ill get o2 readings after class, but what should I look for with those?
     
    mudthedoor, May 4, 2012
    #11
  12. May 4, 2012 at 10:07 AM
    #12
    Bengland25

    #12
    Bengland25 Never Forget! 343

    Joined:
    Nov 17, 2011
    Member:
    #67192
    Messages:
    1,937
    Gender:
    Male
    First Name:
    Bradley
    Southern California
    Vehicle:
    09 Tacoma TRD
    MB Chaos 6 17" wheels, BF Goodrich All-Terrain TA/KO LT265-70R17, Anytime Fog Lights, Anytime Backup Camera, Bed Lights, Tailgate Lock, Light bar with 3 Hella 700FF's, Realtree Camo arm-rests, Anytime DTRL (With Switch), Blue Seas Fuse Block and Circuit Breaker, Custom Bed Light-Bar, Cobra 29 LTD Chrome, 4' Firestik, Masterlock Hitch Key Safe, Bed Storage Compartment Locks, Custom Shovel Bracket Mount, Flag Pole Mount (RED SOLO CUP FLAG!), DIY Washable Cabin Filter, URD MAF Cal., Homelink Garage Door Opener, Volant CAI w/ Ram Scoop, AeroTurbine 3030XL, URD Short Throw Shifter, Custom Satoshi, Blitzpro 21S, 2 Blitzpro 6LZ's, Blitzpro 6D, BAMF Sliders
    Subbed
     
    Bengland25, May 4, 2012
    #12
  13. May 4, 2012 at 10:16 AM
    #13
    mudthedoor

    #13
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Its going to happen eventualy but not an option now just had to pay up for school...
     
    mudthedoor, May 4, 2012
    #13
  14. May 4, 2012 at 10:29 AM
    #14
    mudthedoor

    #14
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    yes that one was sold

    Believe it or not the one I built and yes sold had absolutely no issues! I wanted the volant air duct so it would look right in the engine bay... That one had normal values when tested...
     
    mudthedoor, May 4, 2012
    #14
  15. May 4, 2012 at 10:39 AM
    #15
    mudthedoor

    #15
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    I think that my last one worked because the air duct cross section was closer to stock than volants...
     
    mudthedoor, May 4, 2012
    #15
  16. May 4, 2012 at 11:02 AM
    #16
    chris4x4

    #16
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    It could be a sign that your O2 is on its way out.
     
    chris4x4, May 4, 2012
    #16
  17. May 4, 2012 at 11:04 AM
    #17
    chris4x4

    #17
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Need to make sre the other systems are functioning propperly before throwing parts at it. Also, The MAF Calibrator only works at WOT (IIRC), so if these numbers are being given during normal cruise, there may be an underlying issue.
     
    chris4x4, May 4, 2012
    #17
  18. May 4, 2012 at 11:06 AM
    #18
    mudthedoor

    #18
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Really maf only has control at WOT, well then I could have a crap filled cat or a bad o2... maf claibrator, nvr mind...
     
    mudthedoor, May 4, 2012
    #18
  19. May 4, 2012 at 11:08 AM
    #19
    mudthedoor

    #19
    mudthedoor [OP] Sconnie

    Joined:
    Feb 4, 2011
    Member:
    #50550
    Messages:
    1,259
    Gender:
    Male
    First Name:
    Alex
    Forestville, WI
    Vehicle:
    00 4Runner
    Oh, the maf calibrator... I gotcha yea this is just on a typical cruise nothing crazy...
     
    mudthedoor, May 4, 2012
    #19
  20. May 4, 2012 at 11:12 AM
    #20
    chris4x4

    #20
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    108,425
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    The MAF Calibrator changes A/F signal under WOT. When the engine is under WOT conditions, or cold (Open loop), A/F is controled by the MAF sensor. When warmed up, and under normal cruise conditions (closed loop) , the A/F ratio is dictated by the MAF, AND the O2 sensors, with favortisim given to the O2 sensors for better ecconomy. If these readings you are getting are under normal cruise operation, then you need to check the O2 sensors.
     
    chris4x4, May 4, 2012
    #20
Page 1 of 2

Products Discussed in

Blue Sea Systems ML-ACR 12V DC 500A Automatic Charging Relay with Manual Control
$185.51
GENUINE TOYOTA GASKET KIT FOR TRANSFER AND DIFFERENTIAL SERVICE
$6.68
18' RG-58A/U Coaxial Cable With Pl-259 Connectors
$9.71
Lumax LX-1344 Black Hand Transfer Pump
$19.99
Spicer 5-1330-1X U-Joint Kit
$28.99
Military Spec Battery Terminal Top Post Kit
$29.99
Midland 75-822 40 Channel CB-Way Radio
$79.40
15 Piece 3.4L engine TIMING BELT KIT WATER PUMP Genuine & OE Manufacture Parts!
$284.38
303 (30313-CSR) UV Protectant Spray for Vinyl, Plastic, Rubber, Fiberglass, Leather & More – Dust and Dirt Repellant - Non-Toxic, Matte Finish, 32 Fl. oz.
$16.07
Viair 00088 88P Portable Air Compressor
$54.35
Renogy 100 Watts 12 Volts Monocrystalline Solar Starter Kit w/ 100W Solar Panel + 30A PWM Negative ground Charge Controller + MC4 Connectors +Tray Cable+ Mounting Z Brackets for RV, Boat
$189.99
ATP Value-Tube LDPE Metric Plastic Tubing, Black, 4 mm ID x 6 mm OD, 100 feet Length
$9.65
G1/4 Air Pressure Regulator oil/Water Separator Trap Filter Airbrush Compressor
$9.46
Direct Hard Wire Cord for Uniden LRD850, LRD950, DFR6 & DFR7
$8.95
Metra 44-EC204 204" Antenna Extension Cable
$9.55
Anderson Metals Brass Hose Fitting, Connector, 3/4" Barb x 3/4" Female Pipe
$9.99
Truck cap wiring harness for third brake light and 12 volt dome light # C90-907
$10.49
BATTERY CUTOFF SWITCH CAR RV BOAT RACECAR ATV CUT OFF !
$9.99
HELLA 003510087 30 Amp 12V Mini SPST Relay with Bracket
$10.00
InstallGear 8 Gauge Red 25ft Power/Ground Wire True Spec and Soft Touch Cable
$9.99
Xcelite R3322 Chrome Vanadium Steel Slotted Round Blade Pocket Clip Screwdriver, Green Handle, 3/32" Head, 2" Blade Length, 4-1/4" Overall Length
$10.00
Viair 90088 Black Face 2" 160 PSI Illuminated Single Needle Gauge
$10.54
Dorman 800-177 Fuel T-Connector - 2 Piece
$10.92
Docooler Obd-ii Obd2 16pin Male to Female Extension Cable Diagnostic Extender 150cm (5ft)
$10.99
Viair 90001 1/8" Female BSP - 1/4" Male NPT Adaptor - 2 Piece
$11.31
Control Devices ST Series Brass ASME Safety Valve, 150 psi Set Pressure, 1/4" Male NPT
$4.97
RTT7121A 4-Pin 40A Relay Single Pole Relay for Toyota 90987-02006
$3.94
TYC 800038P Toyota/Pontiac Replacement Cabin Air Filter
$4.29
Everstart 962-1W Marine Grade 6-12-Volt Battery Terminal
$4.87
Digital LED Voltmeter 0-200V FOR 12V 24V Voltage Car E-bike Battery Measure BLUE
$4.99
MettleAir MTMF 3/8-N02-1PK Push to Connect Straight Bulkhead Female Fitting, 3/8" OD, 1/4" NPT
$5.73
Custom Accessories 18745 Universal Phone Belt Clip and Dash Mount
$5.88
Anderson Metals Brass Threaded Pipe Fitting, Hex Bushing, 3/4" Male x 3/8" Female
$4.99
CRC 05063 Guaranteed To Pass Emissions Test Formula - 12 Fl Oz.
$5.94
Super Tech DEXRON VI Automatic Transmission Fluid, 1 qt
$5.14
Absolute ANL200-2, 2 Pack ANL Fuses 200 Amp Gold Plated
$5.49
Milton S-764 1/4" FNPT V Style High Flow Coupler
$5.99
2x Custom Black Anodized Aluminum 6500K Xenon White 4.5W SMD LED Eagle Eye Lamps Back Up Backup Reverse Parking Light For Car Van SUV Coupe Sedan
$5.99
12-10AWG (Yellow) Heat Shrink Ring Terminals with Adhesive Liner - Ring Size: 5/16" Screw - 10 Pieces
$5.99
Techflex PTN0.25BK25 Flexo PET General Purpose 1/4" Braided Cable Sleeve, Black - 25 Foot
$5.34
Blue Sea Systems 2304 5 Gang Common 100A Mini Busbar
$5.57
Custom Accessories 10242 Auxiliary Twin Power Outlet
$5.00
To Top