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    Good to hear the wideband is working OK. ...

    Good to hear the wideband is working OK.

    That is correct, your scanner has no idea you are making changes to the ignition timing as it is happening right before the ignition coil and spark plug....
  2. Some of that is not quite correct. You don’t need...

    Some of that is not quite correct. You don’t need to toggle maps for open and closed loop tuning. The O2 Adjust function is designed for the stock O2 sensors but we haven’t tried it on the 1UZ. It...
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    We haven't heard back from the other member. We...

    We haven't heard back from the other member. We can have a look at your log if you are able to log the event? Could your IAT be suffering heat soak?
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    You have to wire 2 wires. The OEM MAP sensor...

    You have to wire 2 wires. The OEM MAP sensor output is connected to a spare MAPECU3 analog input configured to "FCD1" and then you configure a MAPECU3 analog output also to "FCD1" and connect that...
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    You can edit the pressure scale file...

    You can edit the pressure scale file MAP_CONFIG.cfg if you really want to but we might need to provide advice on the layout.

    Thanks for the link to the ZT2 PDF. Are you using the white or purple...
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    1650cc injectors still feel more than double plus...

    1650cc injectors still feel more than double plus the the additional required for E85?
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    Ok, nice and simple. The MAPECU3 FCD can be...

    Ok, nice and simple. The MAPECU3 FCD can be wired in the same way and you set the clamp voltage to 4.3V. There is a clamp release pressure too which allows you to reinstate boost cut if you boost...
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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...
  20. 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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