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  1. V

    How much would you pay for a billet coil cover?

    count me in too if price is around $100
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    what kind of harness is this

    Agree also with OneJArpus
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    Sensor questions

    I don't think toyota puts part /name on there parts. At least I have never seen it.
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    1jz mapping problems at 4-4500 rpm

    Are you running stock coils? Check for cracks to eliminate that. Coils on JZ are common for cracks. Also make sure your Crank and Cam wires are shielded all the way to your ecu with no splicing.
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    Sensor questions

    Black looks like it's a Map Sensor. You need this so your ecu knows what to do when loads are applied. The other sensor looks like Crank sensor. This allows your ecu to know when to lite up your ignition.
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    1j oil pressure help!!

    Be sure you get it checked with a different oil pressure gauge before making any major repair. Also, rarely oil pump fails. Other reason could be that your oil contain sludge that blocked the oil pick-up screen or other vital components. Try flushing it with some oil flush, it will thin out...
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    Can low oil pressure cause low turbo boost? only boost 5lbs

    Well, I actually got it free from my buddy which he was in the middle of swapping old 1jz to new 1jz and got kicked out by the bank. Bad timing huh? He was able to save the new engine and the turbo set up from old 1jz. Before this all happen, somebody opened up his oil cap on his old 1jz set-up...
  8. V

    Connector/Sensor On middle of intake manifold

    It allow the ecu to know your air temperature. This will help the ecu to determine how much fuel needed to compensate for cold or hot air when enter into chamber.
  9. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    Sorry for the confusion. I pressurized the cold side and it held over 20 psi. I use the engine exhaust gas to spin the turbo and rev it over 6500 rpm and it push out only 5 lbs.
  10. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    I have not done the pressurize test on the exhaust side yet. I have pressurized only the cold side of turbo and it was holding a good amount of pressure. However, I will be taking off the turbo this weekend and do a complete check up on it off the car. I will update with information after I...
  11. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    I have not pull the turbo out because it is so damn hard to get the back bolt off. It will literally take like 2 hours to get the 2 bolt behind off. I guess taking the turbo off is not such a bad idea though. I will eventually have to take it off, maybe this weekend if I can find any other...
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    Can low oil pressure cause low turbo boost? only boost 5lbs

    At the moment I do not have anything controlling the wastegate. I have left the lines unplug so I can see how much boost it will make with the wastegate fully close. The wastegate has never opened with the exhaust pressure flowing against it. I should be able to produce infinant pressure until...
  13. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    Leak test was already done between turbo to intake manifold. All ok.
  14. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    I hooked the tester directly to the cold side of the turbine, only 5lb was produce by the turbine.
  15. V

    Can low oil pressure cause low turbo boost? only boost 5lbs

    Recently I finish my 1jz swap but I have run into a few problems. Most problems that I ran into, I can usually find it in forums. But this problem that I have now is driving me nuts and I cannot find a solid answer in any forums. I am having some troubles and problems with my set up. I went...
  16. V

    EMS 6860 will not rev past 5500 RPM

    I didn't know that he was located in MN. I finally found his address. Thanks for your input figgie and funky
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    EMS 6860 will not rev past 5500 RPM

    Well, I got it past 5500 rpm after a few tune recommended by nosechunk. It rev and hit 6700 rpm with only 5 lbs. of boost only then it stopped. It will not boost past 5 lbs. I've checked for loose t-clamp but it turns out that all attachments are tight. Anyone knows a reputable shop in...
  18. V

    EMS 6860 will not rev past 5500 RPM

    I didn't make this map. I needed a map to get my car running and this was the closes to it. I do not have a wide band, but I was trying to use my stock o2 sensor with 3 wires. As far as baro, I still don't know what it means after reading the manual 5 times a day. I will try to reconfigure the...
  19. V

    EMS 6860 will not rev past 5500 RPM

    The motor has never been run with the stock set-up because the stock ecu was bad. I've decided to go with this aftermarket ecu. Long story short. I got the engine to rev past 7500 rpm the other day with a crappy set-up (software). It ran with the bad set up but it idles rough, rpm jumping...
  20. V

    EMS 6860 will not rev past 5500 RPM

    The rpm continues to stay at 5500 rpm with the pedal to the floor. I'v stepped the foot pedal to the floor and hold for 5 seconds and it will not rise anymore. I hear some poping but its not too bad. More like a soft pop. I don't have a limit to my rpm setting so it should rev past 5500. Also...