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  1. R

    1JZ is not running right, intermittent smoke, isnt revving right, tap

    :yikes: Well, I'll just give a rundown first of the symptoms and what I know is an issue. 1995 Sc300 with Soarer 1JZ manual trans swap...daily driven for 2 years prior to this issue. 1. I filled the tank with premium, ran it for 8 miles and all of the sudden then car cuts out on deceleration...
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    How to get speedo to read right after diff swap?

    Here's what I got. I swapped the Supra 3.76 into my sc300. I also swapped the Soarer R154 trans in. Now my speedo is about 10mph slower than it should be. Question is- Do you think I could just buy the MKIII turbo R154 speedo gear and swap that into my R154? Technically at that...
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    Exhaust ports 2 and 5 are smaller?

    I haven't had the opportunity to look at 1JZ ports in person, but are the exhaust ports 2 and 5 smaller than the rest? I did search, but I only found a sentence about this. Thanks
  4. R

    1JZ 2JZ Accessory belt tensioners interchange?

    I can't find a definitive answer. I know the 1JZ and 2JZ tensioners are different part numbers, because Curt at Elmhurst told me. Driftmotion is selling a 1JZ/2JZ like they are the same. I've read that the 1JZ has a 5mm difference in starting angle compared to the 2JZ accessory tensioner...
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    Is my igniter sending a tach signal ?

    I'm trying to determine if my 1JZ igniter is sending a tach signal once the car is started. I'm under the impression that the igniter sends a 12V square wave signal(digital) down the black igniter wire straight to the tach cluster. Yesterday I started the car and I measured the voltage of...
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