Unichip

Discussion in 'FJ Cruiser' started by SHERMAN FJ62, Feb 17, 2009.

  1. SHERMAN FJ62

    SHERMAN FJ62 Charlestons' King of Cruisers

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    I saw an ad in 4wd Toyota Owner For Unichip. Claim to be plug and play Performance Computer Module They claim it will add 40 hp and 30 torque. web site www.unichip.us Anyone used this product on a Tacoma, Tundra or Fj?

    Feed back would be nice.

    Want to make sure this will not harm veh over long haul.
     
  2. SHERMAN FJ62

    SHERMAN FJ62 Charlestons' King of Cruisers

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    Anyone else have any experience with any good performance chips for FJ's
     
  3. RiverWalker

    RiverWalker

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    I don't know if I get a full 40 hp more. I do know that I do not have to change gears so often when driving in the mountains, especially when I am pulling my trailer. The ride is smoother and I get an average of 1.4 mph more. (I have kept an accurate record of my fuel economy since the truck was new). I recently had a problem with my MAF. I took the chip out (10 min.) before I took it to the dealership. They did a diagnostic on the truck and did not know that the chip had been there. When the truck came home, it seemed sluggish until I put the chip back in.
    Cheers
    River Walker
     
  4. SHERMAN FJ62

    SHERMAN FJ62 Charlestons' King of Cruisers

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    Was this with a Unichip?
     
  5. RiverWalker

    RiverWalker

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    Yes it is.
     
  6. NYCTRD

    NYCTRD

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    I've always been hesitant with after market chip mods since cars started using electronics in the 80's.
    My first experience was with a modded chip for a Bosch L-Jetroinic injection system (mid 80's) and it was a little too "aggresive (had pinging even though I ran hi-test).

    BTW-Do the FJ's have variable cam (intake) timing?
     
  7. Degnol

    Degnol

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    Well, they have Variable Valve Timing....I think that is a yes.;)
     
  8. DEWFPO

    DEWFPO

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    The VVT-i on the 4.0L, 1GR-FE varies the intake timing only.

    Intake Valves Open -8 to 42 BTDC
    Intake Valves Close 60 to 10 ABDC
    Exhaust Valves Open 54 BBDC
    Exhaust Valves Close 2 ATDC

    DEWFPO
     
  9. Degnol

    Degnol

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    'K':rolleyes:
     
  10. Lemony

    Lemony

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    Hey River Walker did you get yours tuned? I have one in the barn and its set for intake and exhaust and I don't have the trd exhaust so I need to get it flashed, a local shop will dyno and set it up a map for me and I'm trying to convince myself its worth it.
     
  11. NYCTRD

    NYCTRD

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    Anyone else modify their "brain"?
     
  12. RiverWalker

    RiverWalker

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    I bought mine right from Unichip pre-flashed for the TRD exhaust and supercharger. When I talked to their tech, he advised that I did not need to have it tuned. Will just have to have it re-flashed if I add a cold intake. You can send it back to Unichip and they will reflash it for you. Cost less money and will do just fine.

    I had a problem with the MAF and decided to take the chip out in case the dealer tried to blame the chip. They ran every type of diagnostic on the FJ and did not see that it had been chipped. All long story short I will never go back to Down Town Toyota in Vancouver again. That is unless I want to have more smoke blown in my face at my expense. But I digress.

    The chip is a great way to go. I have got better mileage since I installed and more power.

    Cheers
    River Walker
     
  13. Lemony

    Lemony

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    what did you get for the 2nd map?
     
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