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Running rich?

Discussion in '1st Gen. Tacomas' started by Drewski, Nov 3, 2011.

  1. Drewski

    Drewski [OP] Well-Known Member

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    Hey all, still unfamiliar with this 2.7L motor, and 'yotas in general, but a tune up is a tune up, right? I swapped the plugs, wires, and cleaned the MAF (didn't touch, sprayed with MAF cleaner only.) The last couple starts smelled pretty rich, so I just pulled the plugs and they're all sooty already. The plugs I swapped out were kinda grey. The new ones are definitely black - there's maybe 30 miles on 'em. I had the battery unplugged for a while, so I assume there was an ECU reset and it needs to relearn? Anyway, I regapped the plugs a bit wider than the .032 that Autozone recommended; I've read different gaps on the various online info for this motor.

    No CEL though; am I just paranoid? The truck seems to run smooth and idles nice and low now, like 600-700 rpms.
     
  2. killzone90

    killzone90 Well-Known Member

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    What kind of plugs u running
     
  3. Drewski

    Drewski [OP] Well-Known Member

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    I put the new NGK wires and V-power plugs in at 0.032 and ran it for a few days, but I just regapped them to 0.042.
     
  4. skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    Check your temp sensors, air and coolant and O2 sensor, for proper operation. Also, after replacing a sensor or doing a tune-up, disconnect the battery for 15 min to reset the ECU. It will start with the factory parameters for the fuel mix.
    Marginal temp sensors will not set a code; they will just cause fuel and timing related problems. The ECU will think it's running in a cold or hot envioronment when it isn't.
     
  5. pigger

    pigger Well-Known Member

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    Detroit True-Track rear limited slip, steering rack bushings, shell, SAF decals, older-than-dirt owner
    My '04 runs pretty rich when first started (you can smell it), then leans out to normal. Has always done this.
     
  6. Drewski

    Drewski [OP] Well-Known Member

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    Have you checked your plugs lately? Mine are nicely blackened. 30 or so miles since installed. I regapped and drove another 25, so I'm curious to see if time helps. Just to be safe, I unplugged the battery while I was at work so the ECU should be all nice n reset.

    In a completely unrelated story, I made fast friends with a local gearhead - the real deal, old school, Stingrays and Goats and 'cudas (oh my!) etc. Chatted about the "old days" for a while, and it turns out he owns a body shop. I deftly steered the conversation to this "sweet '99 taco out of AZ with no rust and a sunburned paint job" and he told me to bring it in, he'd set me up. Two-stage, factory color, all emblems replaced, door dings removed for, drum roll.... $1500! I've seen his work, this place does not mess around. Only thing is, I owe him a ride in the old man's '57. :eek:

    [​IMG]
     
  7. skytower

    skytower Well-Known Member

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    Hitch and wiring, aux back-up light, rear strobe lights, radio and underseat sub.
    Nice deal!
     
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