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    You have to have the ignition setting match your...

    You have to have the ignition setting match your wiring, i.e. COP if it is COP and wasted spark if it is wasted spark. The consequence of having it incorrect is the wrong RPM reading and/or and...
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    You can probably use the FCD function with the...

    You can probably use the FCD function with the benefit of overboost safety function. How is the boost cut module wired into the vehicle?
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    I didn’t believe even e85 will cause you to use...

    I didn’t believe even e85 will cause you to use double the fuel volume so I think 2150cc is too big. You might want to consider using the flex fuel option because it seems not all e85 is created...
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    Good question. Yes, that guideline is for...

    Good question. Yes, that guideline is for regular gas. You need more fuel when running e85 so you can go bigger again. Just be aware of the limitation if you want to run regular gas and e85.
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    Yes, that's what the different pressure sensor...

    Yes, that's what the different pressure sensor selections do. The only problem is that if you have a tuned table setup for the other pressure scale you need to retune it for the new pressure scale. ...
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    How about retarding the LC ignition timing. Have...

    How about retarding the LC ignition timing. Have you tired that?
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    Haha, itís a pretty good show. :). What kind of...

    Haha, itís a pretty good show. :). What kind of exhaust do you have and do you have cats? Cats can prevent unburnt fuel entering the exhaust which is how you get the explosions. Managed to view the...
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    I think I should warn you that the IS300 will be...

    I think I should warn you that the IS300 will be a very difficult first tune for someone new to this. The OEM ECU is very fussy about how it is tuned and you really need a OBD2 scanner to read the...
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    I would expect that means your tune is lean so it...

    I would expect that means your tune is lean so it has to add +19%.
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    You should never attempt any tuning without a...

    You should never attempt any tuning without a wideband. I’m sorry but I cannot understand how you have contemplate such a project without one. I also don’t understand how you adjusted the fuels...
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    Nope, we have run longer cables for vehicles with...

    Nope, we have run longer cables for vehicles with the OEM ECU under the bonnet. The usual rules apply with soldered wiring and definitely not those horrible vampire clamps.
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    By default the OEM ECU oscillators the AFRs...

    By default the OEM ECU oscillators the AFRs around 14.7:1 to check the O2 sensor is working. To be honest idle is not really a priority as the AFRs at cruise and under power are more important. Have...
  13. Sorry, what vehicle, engine code and model year...

    Sorry, what vehicle, engine code and model year do you have?
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    There will be a point when stft stops changing...

    There will be a point when stft stops changing when it goes in open loop. Generally it is based on throttle position, I.e. accelerating versus cruise. Have you cleared the OEM ECU memory to check the...
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    I guess that’s better than nothing. The goal will...

    I guess that’s better than nothing. The goal will be zero percent stfl and ltft. Does it tell you when it is in closed loop?
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    It sounds like you have configured the inputs...

    It sounds like you have configured the inputs correctly. Have you selected the wideband you have under MAPCAL Configuration?
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    That seems strange, can you please upload the tbl...

    That seems strange, can you please upload the tbl file from your MAPECU3 or send us a screen shot of the ECU Configuration screen?
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    There are some other threads on the forum...

    There are some other threads on the forum regarding closed loop tuning with an ODB scanner and there is a document URD USA wrote for another product that overviews the process:...
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    That's fantastic, thank you so much for the...

    That's fantastic, thank you so much for the feedback and sharing you tuned base table! :)
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    You are in a really good place if the OEM ECU...

    You are in a really good place if the OEM ECU does not complain if all the OEM O2 sensors are disconnected. The Aristo's tended to have upstream and downstream O2 sensors (but not all are the same)...
  21. It should be TPS Enrichment on the MAPECU1 (red...

    It should be TPS Enrichment on the MAPECU1 (red unit) and yes, that is what it is designed to help solve. It works based on a percentage enrichment multiplied by the speed and amount of movement of...
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    If you can disconnect the stock O2 sensors then...

    If you can disconnect the stock O2 sensors then it will prevent learning but I would imagine you will get a CEL. As soon as the OEM ECU sees coolant up to temp, it will start learning from stock O2...
  23. Toyota's usually start even without a valid...

    Toyota's usually start even without a valid MAF/MAP sensor working so it is unusual. Just confirming you are using this wiring diagram for your OEM ECU?...
  24. It sounds like you have done the right things but...

    It sounds like you have done the right things but what model year is the 2JZ-GTE ECU you are using? The diagram and base table you are using are not for a VVTi ECU as they tend to be MAF rather than...
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    Excellent, please let us know your results. :)

    Excellent, please let us know your results. :)
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