"Parmas" Motor

[Parmas]

Originally Posted by rob323

To me, it sounds more likely that the problem is the engine management, than the engine. Might be cheaper to use something like Adaptronic which utilises all the factory sensor & igniters and has continuously variable control over the vvti.

I'll pm you an email conversation I had with Adaptronic recently.

I checked the specs of the e420c and seem that VVTi isn't mentioned but as you sent me the pm it seems it can eventually.

I am going to give the last try to the present management if tuning fails again then I have to change it to another that accepts VVTi or I have to consider removing VVTi completely like many honda removing Vtec.... will see what comes up next

[rob323]

Yes, that was why I emailed them. To make sure.
I haven't played enough with these motors to find out just where the cam sits when the vvti solenoid is unplugged but maybe that is the best way for you to do it now unless you can get the continuously variable control working.

[Parmas]

Originally Posted by cali yaris

The AEM EMS has a wizard for Toyota motors, I believe it automatically sets parameters for VVTI. So I'm not sure I'll be able to answer your question, but Art is going to look into it further.

Garm I have an idea..... if we connect an oscilloscope on the signal wire of the valve timing control on a stock 1NZFE with a stock ecu, we could know eventually the frequency and duty cycle at all rpm ranges.

The problem is I don't own one damn... or else someone could check with a toyota expert on this .... maybe H3ilton


Edit: I found a waveform of the camshaft timing valve here on page 33 http://www.etimago.com/yaris/repairm...%20Control.pdf

Can anyone translate it in terms of frequency or duty cycle?

I uploaded some pages of the manual that relates to VVT information

[cali yaris]

^ we know that works too. Just not as much control in tuning.

[cali yaris]

wow, now that is over my head, sorry!

[Parmas]

I told this to a friend and he said that from the look of the waveform he concludes that it is at:

Frequency 1000Hz because frequency = 1 \ t and since the waveform shows 1ms\div so = 1 \ 0.001s = 1000Hz

Duty 33% because the waveform shows 3 pulses each about a bit longer than each division. Since there are 10divisions and 3 pulses (each a bit longer) ......... so 1pulse = 1.1 x 3 = 3.3.... 3.3div out of 10div = 33%

Garm can your tuner confirm this?

[cali yaris]

I haven't heard back yet

[Parmas]

Explained more in detail from where these values came.... if there is a mistake don't hesitate to post why and of course the right answer :)

By the way previous tuner set these values to 60Hz and 7.1% in which if the "new" values are correct, with the present values I have on my ecu there is a high possibility that the valve is never being activated and it is always on the most retard state at all loads and rpm!!! that explains roughy state etc...

[rob323]

I don't think your frequency value is correct. If each division is one millisecond (which isn't entirely clear), then each pulse appears to be about 3.5 milliseconds apart, which correlates to approx. 285Hz. I agree with the 33% duty cycle amount though.

[Yaris Hilton]

Thanks for the link, Parmas!

[Parmas]

Update:

Today I went to my tuner and we began to check the Stock Crank Trigger in order to configure the ecu accordingly. We found out that the stock toyota crank sensor has a sense config of 37 -3 (Please anyone confirm this) in which the present ecu do not accept this triggering. Infact the ecu is configured to 36 -1 which do not represent my setup....

Please garm or anyone can you confirm this 37-3 triggering?

[rob323]

I can confirm from my Echo manual that it has 34 teeth, so your 37-3 config might be correct.

[Parmas]

Originally Posted by rob323

I can confirm from my Echo manual that it has 34 teeth, so your 37-3 config might be correct.

Thanks rob that relievs me from doubts!

Anyother who wish to confirm this trigger feel free especially garm

[Bluevitz-rs]

It's actually 36 minus 2.

This is info coming from a Toyota Canada Technician Trainer.

Edit: So there should be 34 teeth, but only minus 2, not 3.

[Parmas]

Originally Posted by Bluevitz-rs

It's actually 36 minus 2.

This is info coming from a Toyota Canada Technician Trainer.

Edit: So there should be 34 teeth, but only minus 2, not 3.

As of Bluevitz post we decided to re check again and count the teeth again. I didn't mention before but we have not opened the motor to count it directly but we are counting them from the crank sensor hole so there is a possibility we counted 1 missing tooth more.

It is strange the uneven number of 37 so we conclude that the trigger is effectively 36 -2 as Bluevitz-rs mentioned

[Parmas]

I have a problem regarding the IDLE control connection. Do anyone knows where I can find a diagram showing the idle control connector and it's terminal connections.

The connector is 3 wire : Red/Black Yellow/Black Brown


I need this to connect it to the standalone ecu.

[Parmas]

UPDATE:

Wiring is almost ready .... the only things remaining is Launch control and Table switches to wire up. Also changing some oil and water braided pipes to some anodized color threads which look awesome for me.

I didn't bother taking pics since you would only see a mess of wiring which still needs to be organized.

Stay tuned!

[cali yaris]

I want to see the mess of wiring! Pictures always!