Pages: [1] 2 3
Author Topic: Supercharged 2.0 8v with 1.8t ECU  (Read 17554 times)
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« 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
Logged
_nameless
Hero Member
*****

Karma: +342/-466
Offline Offline

Posts: 2802



« Reply #1 on: July 13, 2016, 02:46:38 PM »

Have you wired in a map sensor and iat sensor?
Logged

Giving your mom a tuneup
nubcake
Sr. Member
****

Karma: +53/-4
Offline Offline

Posts: 400


« Reply #2 on: July 13, 2016, 03:48:16 PM »

http://s4wiki.com/wiki/Tuning#Larger_displacement

Corrected these?
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #3 on: July 13, 2016, 10:09:15 PM »

Have you wired in a map sensor and iat sensor?

Yeah sure have
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #4 on: July 13, 2016, 10:15:13 PM »


No I haven't, I was told not to worry about that, then I forgot about it.
It's worth a shot that
Logged
adam-
Hero Member
*****

Karma: +124/-33
Offline Offline

Posts: 2179


« Reply #5 on: July 14, 2016, 02:26:12 AM »

Does load and timing drop together?
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #6 on: July 14, 2016, 03:50:43 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
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« 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
Logged
nubcake
Sr. Member
****

Karma: +53/-4
Offline Offline

Posts: 400


« Reply #8 on: July 14, 2016, 04:22:42 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
Hero Member
*****

Karma: +52/-7
Offline Offline

Posts: 903


« Reply #9 on: July 14, 2016, 05:01:32 AM »

Do you have the flywheel and pressure plate installed when its running static?
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #10 on: July 14, 2016, 05:12:06 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


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
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #11 on: July 14, 2016, 08:54:13 AM »

Here is the timing over load and fuel
Logged
monk-e
Jr. Member
**

Karma: +0/-0
Offline Offline

Posts: 26


« Reply #12 on: July 14, 2016, 08:58:28 AM »

and fuel
Logged
nyet
Administrator
Hero Member
*****

Karma: +608/-168
Offline Offline

Posts: 12271


WWW
« 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.
Logged

ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

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 ex
vwaudiguy
Hero Member
*****

Karma: +53/-37
Offline Offline

Posts: 2024



« Reply #14 on: July 14, 2016, 09:45:37 AM »

Hi, I'm trying to run a supercharged 2.0L 8v on a 8N0906018H ECU

Why did you post an 06A906032FK bin?
Logged

"If you have a chinese turbo, that you are worried is going to blow up when you floor it, then LOL."
Pages: [1] 2 3
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.023 seconds with 18 queries. (Pretty URLs adds 0s, 0q)