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Adturb

Direct ignition Denso 90919-02229 Dwell Times required for Evo COP

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I've modified My Evo to run sequential [direct] spark with a set of 4x Denso 90919-02229 coil packs from a 1L Toyota Yaris, but I can't find any information on the dwell times to adjust the 3D table. I am GUESSING that the Toyota Altezza (IS200 in UK) will be the same, or near as? 

If anyone's interested, hardwiring the mod was simple enough, just 2 extra wires from the triggers to coils 3 and 4 back into the cabin (i also used an extra 2 pin plug in line to make removal of the coils easier), remove the Fuel pump and BOTH A/C fan wires. Then pop the new wires into their place, move the High speed A/C and fuel pump wires to Ign 6 and 7 with the low speed A/C fan taped up out of the way. Then a quick change in PCLink to change Ign 3 and 4 to 'IGNITION' (or it won't display correctly when you change the mode from 'wasted' to 'direct' spark), then program 6 and 7 for the fuel pump and engine fan 3 respectively. Under 'ignition main'  change 'wasted' to 'direct' [a.k.a sequential] spark and she's a runner! The last job will be adjusting the above table...... followed by reconfirming the base timing if my light will pick up the coilpack. 

If someone could post up the data sheet for the above, it would be really appreciated!

IMG_5546.jpg

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Hi Scott,

Thank you again for the quick response, for some reason I didn't get a notification.

I have found the dwell data for another set of common Denso coils 90919-02240

8V 6.3 ms
9V 5.3 ms
10V 4.4 ms
11V 3.8 ms
12V 3.2 ms
13V 2.7 ms
14V 2.4 ms
15V 2.2 ms

I may have a go at measuring it myself on the 02229's. I'll post data up when I get a chance to dig the scope out!

Was there any progress/ possibility of a low freq PWM option for the aux outputs, or just the ability to set the shift light to one of these outputs, or even just as a binary on or off once it crosses the threshold?

Ads

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Hi Ads,

Can you remind me about the low freq output/shiftlight thing? I don't remember the details.

Currently the normal Aux outputs can be set down to 10Hz when using the Test(PWM) function.

Cheers,

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I think it may have been an email conversation- essentially I had an LED set as a shift light on Aux Ign 7, but it was always slightly on. I was advised to use a normal aux output of which I have 9 to 16 available (1 to 8 are already in use) but I can't set any of these directly to 'shift light' or PWM- so I've had to program it as a GP output based on RPM.

As anything over 20Hz looks like its on solid, being able to use these outputs for low freq pwm would be a perfect solution for my shift light and other odd features.

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Thanks Scott, hopefully the attached will put you in the picture with what I've got and how it's done :-)

Out of interest, is there any reason I'm not getting email notifications of your replies? And is there an email list I can subscribe to that will let me know when new firmware is available?

Thanks!

Ads

Ads9_EvoIX_Sequential_Ign.pclr

IMG_4829.jpg

Link ECU to IX_R2.xlsx

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Hi Ads,

Thanks for the photo and base-map. I think the easiest solution is going to be for you to move your engine fan output (currently Aux 1) to Aux 11, 12, or 13. Currently Aux 1 drives high when the ECU switches the engine fan relay on, however Aux 11, 12, and 13 are only capable of driving low. What this means is you would need to use a relay to flip the engine fan signal from low to high. Aux 11, 12, and 13 are found on the currently not used 8 pin expansion connector on your bottom board, you will need to purchase an expansion cable to plug into this connector.

With Aux 1 now available you could use it for the shift light control of your LED.

Scott

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Hi Scott, 

No problem. I have the expansion harness in place, as my shift light is on Aux 13. Am I right in assuming that Aux 9 & 10 aren't available on this ECU board?

Ads 

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The attached table is what I'm using. No issues to report. 

I have also moved away from the Denso coils to Delphi GN10312's. I'm able to source these far cheaper and again, no issues to report! :) 

Screen Shot 2016-07-30 at 07.37.10.png

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Hi Adturb

Thanks for the update ;-)

I'm really interested in your new coils installation... any chance of some pictures when you get the chance?

I'm guessing these have a different connector than the Denso coils as well?

 

Cheerz

Mark H

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Hi Adturb

Thanks for the update ;-)

I'm really interested in your new coils installation... any chance of some pictures when you get the chance?

I'm guessing these have a different connector than the Denso coils as well?

 

Cheerz

Mark H

The Delphi coils are direct equivalents for the Denso 02240 coils- so same plugs, shape and wiring :D buuuuuttt they're easier to get hold of (for me) and as a further bonus, are cheaper. 

Edit:

I received a response from Delphi regarding dwell times for their GN10312 coils (Denso 02229 equivalents) and they are:

Battery Voltage (V)

Dwell Time (msec)

8

5.60

10

3.40

12

2.48

14

2.00

16

1.65

18

1.42

 

image.jpeg

Edited by Adturb
More info

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WooHoo

I'm now running sequential/direct ignition on my own Evo IX.  My friendly Evo specialist helped with the wiring this morning.  Not mapped yet - and this is an attempt to cure a voltage issue my car has at high load - the voltage drops to as low as 12.8 V or even lower at high load and higher revs.  Now firing only 1 spark per cycle per cyclinder instead of 2 should help ease that electrical load.

Next step is to alter the dwell times to lower times for the Denso coils and check the map. 

Hopefully start to sort out the knock control in the same session.

Thanks for all the help Ads9

Cheerz

Mark H

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