Brad Burnett
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Posts posted by Brad Burnett
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doesnt have onboard provisions. and if you were to try to utilize links external ethrottle module, well you'd use up all your analogue inputs just on throttle.
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Try raising your MAP limit. I have had a couple instances in the past with G4x, where i was getting too close to my MAP limit and it seemed like a misfire. In these instances, there was no sign of MAP limiter activation in the logs or on the PC, yet raising the MAP limit sorted the problem.
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I recently did a ez30 from a legacy r in a impreza. Worked out sweet. from memory i had the vvl activation based off coolant temp, TP, and rpm. Would only activate above 70 deg C, 60% TP, and above 3000 rpm. I tried to utilize the oil pressure switches that are one the heads as part of the strategy but it was flakey so I just bypassed that aspect. It is purely just on or off.
As for your AVCS, you need to bump the PWM frequency to 250hz. And from looking into your cal, did you run the cam angle tests to get your tooth offsets? I compared to the one I did and yours are a fair bit different.
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Where are you located?
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I didnt look at the cal posted here. But when i was facing the issue a couple weeks ago, my cal did have APS main on the ethrottle table and the issue persisted. Even though it would show the "h bridge polarity reversed" fault, it would still set the appropriate TPS main/sub voltages and i just had to verify the TP sub 100% value. The ethrottle would work but had some very weird drivability issues that appeared to stem from a very noisy TP signal.
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27 minutes ago, ScherzDaddy said:
I will take a look at this. I do have multiple throttle bodies on hand, and I've tried to run this on two different units. Regardless of what throttle body I connect to the ECU, it gives me the same result. This leads me to believe its still a wiring or config issue.
Just to verify, you do only get the error during calibration at the very last step of the calibration process when the ecu is trying t close the throttle correct?
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I ran in to this problem very recently. I would get the same error during the calibration process.... 75% of the time. Sometimes it would calibrate with out issue. I didnt have ample time to spend with the vehicle to sort it out, but it wasnt a h bridge issue. I want to say it is a throttle return spring issue. The fault would only occur at the very end of the calibration process and it would act as if the throttle is hung open while the ecu is commanding it to close. If i had one of these throttles on hand i would play more with it on the bench and get to the bottom of it.
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I have been running a standard 150psi sensor on the coolant system with no issues.
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Try increasing the master fuel value if traditional fuel mode. If modeled fuel equation, try reducing the injector scale value.
Removing the vac line to map sensor makes the ecu run in a different area of fuel map.
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11 hours ago, David Marsh said:
Which ecu to buy, a 4g+ thunder, or a 4gx extreme,when i am ready to buy a new ecu ,as i have a vipec v88, i am getting my engine built at the moment which is 4g63.
David, the G4x extreme is light years a head of the v88 ecu. Would be a direct swap and just need remapping. If you need more IO would be the primary reason to move to a Thunder, but Im sure you could alleviate some IO constraints with some CAN integration via a dash or some form of expander.
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Do you have an ethanol sensor connected?
If no, its normal and not an issue.
If yes, how is it wired and configured?
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Im in Stuart just north of west palm. I used to do a ton of subarus a couple years ago. These days I do anything that pays, but prefer its on a Link.
Hit me up if you need assistance.
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Yes it is possible.
Sounds more like a tuning issue from glowing cat and vibration described.
I would verify Sync of the triggers. Might have it set 360 deg out or mechanical timing issue.
You should be able to get a good running engine with the dizzy.
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On 2/16/2021 at 8:52 PM, Atradies said:
Where do you find the pinout change over?
I simply looked at an aristo ecu pinout and went pin by pin.
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When setting up trigger 1 in the software there is a setting for position, crank or cam.
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On 12/23/2020 at 10:29 AM, VtrSp1 said:
@Adamw , i start the car and run perfect!
I have only an issue,only when i shut down the ignition , the ecu have an error code 84 , Over-Current/Over-Temperature warning from the electronic Throttle Control hardware contained inside the ECU.
I have connected the E-Throttle Relay 30 to the Main Rele 30 and the E-Throttle relay 86 to a Ignition Switch signal.
02-Caterham485R ITB DBW SequentialBox.pclx 425.02 kB · 7 downloads
@VtrSp1 I experience similar issues with the code 84. I typically notice this upon initial key on before the engine is even started. If you configure the DBW system to have "when stalled" setting set to "quiet" it will not happen as frequently, but still occurs. It typically doesnt really cause any ill effects on operation, just an annoyance.
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Bosch ignitor will work fine.
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You could take a look at the jzx100 base file for initial vvt settings.
and check out the ignition there also or the supra base.
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I have used dbw to limit power. You will find you need to remove a good bit of throttle opening to start limiting power.
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uses the base timing table for cranking
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Ignition table 1 doesnt give me any issues. But Ignition 2 is the primary one that started to irritate me. This is while configd as dual ign tables that interpolate between. Fuel tables configd the same does not produce the same results.
Other tables that do the same, just quickly looking through: GP PWM 1 DC, lambda target table 2
I think its pretty much that if you initially open a 3d surface view and the view is all wild and underneath, it will reset every edit.
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This is the second instance of this happening to me:
When trying to edit Ignition table 2 in surface view, every single change i try to make resets the surface view to some inconvenient view.
This is in modelled multi fuel equation with both fuel and ignition having 2 tables that interpolate between the 2.
Any pointers on how to remedy this?
Update, Im finding more and more 3d tables that constantly reset the surface view after even the smallest edit.
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I have a base cal from my IS300 with 2jzvvti with gt35r/1600cc/multiple fuel pumps. Should be very similar. dm me for details.
Big amateur here wondering if someone can point me in the right direction?
in G4x
Posted
You are going to need to have someone build you a custom harness to utilize the plug in ecu. Where are you located?