NefMoto > Technical > Tuning > Supercharged 2.0 8v with 1.8t ECU
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Author Topic: Supercharged 2.0 8v with 1.8t ECU  (Read 17150 times)
monk-e
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« on: July 13, 2016, 01:54:31 PM »
Hi, I'm trying to run a supercharged 2.0L 8v on a 8N0906018H ECU

I only have it statically running at the moment and I'm getting some idle and just off idle issues. where load is oscillating.
its not too bad on idle but as soon as you touch the throttle rpm, raises and lowers a lot. when it gets to above 1500rpm it stabilises.
after logging it looks like something is requesting it to do so.

iop/irl is stock and torque interventions are disabled.
initially I thought it was due to having boost on idle but after sorting out the bypass valves, it still does the same at atmospheric pressure.
I have also tried adjusting KFZW in low load/rpm with little effect other than throttle response and temp.

any pointers would be greatly appreciated
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_nameless
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« Reply #1 on: July 13, 2016, 02:46:38 PM »
Have you wired in a map sensor and iat sensor?
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nubcake
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« Reply #2 on: July 13, 2016, 03:48:16 PM »
http://s4wiki.com/wiki/Tuning#Larger_displacement

Corrected these?
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monk-e
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« Reply #3 on: July 13, 2016, 10:09:15 PM »
Quote from: Marty on July 13, 2016, 02:46:38 PM
Have you wired in a map sensor and iat sensor?

Yeah sure have
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monk-e
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« Reply #4 on: July 13, 2016, 10:15:13 PM »
Quote from: nubcake on July 13, 2016, 03:48:16 PM
http://s4wiki.com/wiki/Tuning#Larger_displacement

Corrected these?

No I haven't, I was told not to worry about that, then I forgot about it.
It's worth a shot that
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adam-
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« Reply #5 on: July 14, 2016, 02:26:12 AM »
Does load and timing drop together?
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monk-e
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« Reply #6 on: July 14, 2016, 03:50:43 AM »
Quote from: adam- on July 14, 2016, 02:26:12 AM
Does load and timing drop together?

I'll over lay them on a graph when I finish work and post it. As I can't remember off hand
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monk-e
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« Reply #7 on: July 14, 2016, 04:04:26 AM »
Just looking at the wiki for compensating for displacement. Looks like I need the intake manifold volume. I take it the easiest way to find this out is to take the manifold off, block it up and fill it with water then tip it into a measuring jug
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nubcake
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« Reply #8 on: July 14, 2016, 04:22:42 AM »
Quote from: monk-e on July 14, 2016, 04:04:26 AM
Just looking at the wiki for compensating for displacement. Looks like I need the intake manifold volume. I take it the easiest way to find this out is to take the manifold off, block it up and fill it with water then tip it into a measuring jug

I believe it also includes the "in-head" intake runner volume up to valves themselves, but I don't think that it's worth it to do that much work currently. You could just adjust those values by the "displacement difference" percentage for initial testing. Or you could find the KISRM value for the engine you're using intake from and then recalculate everything.

Either way, it was just a shot in the dark. I believe there are other issues.
FUEREG, MDFUE, etc.
Check that it's not riding "minimal filling" or "minimal torque".
« Last Edit: July 14, 2016, 04:27:56 AM by nubcake » Logged
littco
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« Reply #9 on: July 14, 2016, 05:01:32 AM »
Do you have the flywheel and pressure plate installed when its running static?
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monk-e
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« Reply #10 on: July 14, 2016, 05:12:06 AM »
Quote from: nubcake on July 14, 2016, 04:22:42 AM
I believe it also includes the "in-head" intake runner volume up to valves themselves, but I don't think that it's worth it to do that much work currently. You could just adjust those values by the "displacement difference" percentage for initial testing. Or you could find the KISRM value for the engine you're using intake from and then recalculate everything.

Either way, it was just a shot in the dark. I believe there are other issues.
FUEREG, MDFUE, etc.
Check that it's not riding "minimal filling" or "minimal torque".

That's a good point, I have the stock map off the original ecu as that is also me7.5
I have tried searching for a definition file for it but haven't had any luck.

I agree there is a few other issues that need addressing as well although fuelling seems to roughly follow where I've set it form a rescaled and adjusted LAMFA, I'll post graph when I get home Smiley


Quote from: littco on July 14, 2016, 05:01:32 AM
Do you have the flywheel and pressure plate installed when its running static?

They are both installed. It's all in the car almost ready to go. I just have no brakes on the car and only a test exhaust. So I can only do static logs at the moment
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monk-e
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« Reply #11 on: July 14, 2016, 08:54:13 AM »
Here is the timing over load and fuel
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monk-e
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« Reply #12 on: July 14, 2016, 08:58:28 AM »
and fuel
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nyet
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« Reply #13 on: July 14, 2016, 09:39:24 AM »
Please post the ACTUAL LOGS and not just pictures. There is a lot more than what you are graphing.
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ME7.1 tuning guide (READ FIRST)
ECUx Plot
ME7Sum checksum checker/corrrector for ME7.x

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience.
vwaudiguy
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« Reply #14 on: July 14, 2016, 09:45:37 AM »
Quote from: monk-e on July 13, 2016, 01:54:31 PM
Hi, I'm trying to run a supercharged 2.0L 8v on a 8N0906018H ECU

Why did you post an 06A906032FK bin?
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"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
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