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Make sense of Long term fuel trim...

Discussion in '1st Gen. Tacomas (1995-2004)' started by jeanl, Oct 1, 2019.

Page 2 of 2
  1. Oct 18, 2019 at 5:32 PM
    #21
    Rachelsdaddy

    #21
    Rachelsdaddy Well-Known Member

    Joined:
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    #221707
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    Southern NH
    Vehicle:
    99 PreRunner 4x4 2.7
    I wonder if your problem lies within the maf plug or those delicate (and old) wires. If playing musical sensors is giving different although similar results. Just tossing it out there. I have been going through my control wiring and have found all types of problems
     
    Rachelsdaddy, Oct 18, 2019
    #21
    1997tacomav6 likes this.
  2. Oct 18, 2019 at 7:42 PM
    #22
    1997tacomav6

    #22
    1997tacomav6 V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
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    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    I don’t think so because each MAF does the same thing consistently depending which one is installed
     
    1997tacomav6, Oct 18, 2019
    #22
  3. Oct 18, 2019 at 8:06 PM
    #23
    Glamisman

    #23
    Glamisman Well-Known Member

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    I can think of a couple of things... measure each of the MAF grams/second of air flow for comparison. The second thing is see if the IAT (intake air temp) is similar on both.
     
    Glamisman, Oct 18, 2019
    #23
Page 2 of 2

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