Help fine tuning emu black tune for MOT

[jvanzyl]

Ok.. thanks!  I'll follow this then and see how it goes:
https://www.mr2roc.org/index.php?topic=60448.0

[Call the midlife!]

That how to is fine but I'm fairly sure I did mine from underneath the car without removing anything but the coolant pipes.
You just need to be careful to put everything back where it came from, there's a defined position for the valve.
Also if it's not been disturbed for some time the gasket might not be fit for reuse so maybe get one to hand before you start.
I got some from MR2 Ben in April for a semi reasonable price, I vaguely remember reading that one of the Subarus uses the same gasket but never actually looked for it...

[jvanzyl]

That how to is fine but I'm fairly sure I did mine from underneath the car without removing anything but the coolant pipes.
You just need to be careful to put everything back where it came from, there's a defined position for the valve.
Also if it's not been disturbed for some time the gasket might not be fit for reuse so maybe get one to hand before you start.
I got some from MR2 Ben in April for a semi reasonable price, I vaguely remember reading that one of the Subarus uses the same gasket but never actually looked for it...

Oh no... coolant.. my nemesis.. argh!
Good shout on the gasket..
part of me is thinking that this thing shouldn't be gummed up as the engine is relatively unused..

[Call the midlife!]

Oh no... coolant.. my nemesis.. argh!
Good shout on the gasket..
part of me is thinking that this thing shouldn't be gummed up as the engine is relatively unused..

Ironically that's WHY they stick, through lack of use, I got a used one from one of our reputable suppliers once and it was basically green and crusty inside from corrosion.
Suggested they open their eyes before sending parts out in future.
Be careful with pulling the solenoid out as well, not sure if it mentions in the how to but it's some sort of rare earth magnet or something and they break from a dirty look....

[jvanzyl]

Right! Ordered the gasket.

[simonrobinson]

I've just fitted an Ecumaster DL1 datalogger card reader add on, its very handy as it keeps logging every time the engine runs. With a 4gb card inserted it can store 44 hours of logs with the time and date stamped. It'll capture the cold start data every time so I can finally clean up my low temperature cold start roughness. It also has a bluetooth module in it so you can use the Android app Realdash so you can use if for your boost gauge and AFR gauge etc.

[shnazzle]

I've just fitted an Ecumaster DL1 datalogger card reader add on, its very handy as it keeps logging every time the engine runs. With a 4gb card inserted it can store 44 hours of logs with the time and date stamped. It'll capture the cold start data every time so I can finally clean up my low temperature cold start roughness. It also has a bluetooth module in it so you can use the Android app Realdash so you can use if for your boost gauge and AFR gauge etc.

I found this a must.
And RealDash is quite funky, albeit a bit clunky

[Gaz2405]

Oh no... coolant.. my nemesis.. argh!
Good shout on the gasket..
part of me is thinking that this thing shouldn't be gummed up as the engine is relatively unused..

I'd be very surprised if it's a stick IACV.

Nothing else has changed on the vehicle, at least mechanically that should affect it's idling.

It's got to be in the ECU parameters, did you have idling issues prior to the conversion?

I'd be careful messing with IACV's at least in taking them off and trying to adjust manually.

I'd first unplug it and see what that does to your idle.

If there's no change when you unplug it, then it's not working.

But I'm 99.9% sure your issue is going to be with the settings in the ECU.

What is your tps at idle?

Is the PID function ticked on idle control?

Have you turned off ignition idle control and see what happens?

[Call the midlife!]

If it's any consolation John (and only slightly off topic) my "standard" 06 with OEM cats 2 u cat wouldn't get through emissions this morning either and now identifies as a Citroen C3...

[jvanzyl]

If it's any consolation John (and only slightly off topic) my "standard" 06 with OEM cats 2 u cat wouldn't get through emissions this morning either and now identifies as a Citroen C3...

shucks... sorry to hear that man..

I'd be very surprised if it's a stick IACV.

Nothing else has changed on the vehicle, at least mechanically that should affect it's idling.

It's got to be in the ECU parameters, did you have idling issues prior to the conversion?

I'd be careful messing with IACV's at least in taking them off and trying to adjust manually.

I'd first unplug it and see what that does to your idle.

If there's no change when you unplug it, then it's not working.

But I'm 99.9% sure your issue is going to be with the settings in the ECU.

What is your tps at idle?

Is the PID function ticked on idle control?

Have you turned off ignition idle control and see what happens?

OK I've got my gasket to hand.. I'm going to go and have a look where the valve is and see if I can disconnect it.

[simonrobinson]

I think Gaz is bang on the money! From the logs the IACV is just doing nothing. The ECUmaster output is doing nothing regarding the IACV. Maybe you two can print screen your IACV settings?

My car with the ECUmaster black is going in for an MOT on friday, and this year they have a new system that has a camera in the bay which DVSA have on trial. I've always had the freedom of errrr alternative testing, but this year it is now a no go. All MOT centres are getting forced into replacing the gas tester with a new "combined connected". So I too have a proper judgement day coming up.

[Gaz2405]

[Call the midlife!]

I think Gaz is bang on the money! From the logs the IACV is just doing nothing. The ECUmaster output is doing nothing regarding the IACV. Maybe you two can print screen your IACV settings?

My car with the ECUmaster black is going in for an MOT on friday, and this year they have a new system that has a camera in the bay which DVSA have on trial. I've always had the freedom of errrr alternative testing, but this year it is now a no go. All MOT centres are getting forced into replacing the gas tester with a new "combined connected". So I too have a proper judgement day coming up.

Where I took mine this morning they had a new machine but thankfully no workshop cameras, the irony of it is I'm planning on putting a turbo on it over winter and fitting a 400 cell cat to make it MOT friendly. Today it struggled standard with the OEM standard cat, doesn't bode well 😂

[jvanzyl]

So it appears we have a BIT of a difference here..

[Gaz2405]

So it appears we have a BIT of a difference here..

Looks strange you've not got ign control ticked yet it still changes your timing by the looks of it.

Try disabling PID control

[Gaz2405]

I would also look at changing your frequency settings to 120 from 200 they have a certain range they can work better in.

Although I'm sure Simon will be better versed on that.

[simonrobinson]

I have no idea as I'm on drive by wire conversion so no IACV at all with my own fully home made engine wiring harness, it just adjusts the butterfly.

But Gaz is using "hbridge1 B (6a, G10)" which is pin 10 of the grey connector.

While john is set to "aux 6 (5a, g4) which is pin 6 of the grey connector.

How have you got it wired John?

Are you both using the plug and play adapter?

[jvanzyl]

I would also look at changing your frequency settings to 120 from 200 they have a certain range they can work better in.

Although I'm sure Simon will be better versed on that.

Right I've emailed out the logs..
In terms of what I experienced, I started on a working map and then started to alter the settings according to what @Gaz2405 posted.

You'll see in the logs how things changed after a couple of mins!
I also then tried locking the ignition angle at 11 and the revs massively picked up. It didn't do that before.

I also then started trying to alter the fuelling but didn't really succeed in reducing the revs etc (wrong approach I know)

Then following the advice to switch to 200 I went back out to the and it won't idle now to stay on!

[jvanzyl]

I have no idea as I'm on drive by wire conversion so no IACV at all with my own fully home made engine wiring harness, it just adjusts the butterfly.

But Gaz is using "hbridge1 B (6a, G10)" which is pin 10 of the grey connector.

While john is set to "aux 6 (5a, g4) which is pin 6 of the grey connector.

How have you got it wired John?

Are you both using the plug and play adapter?

I can see the difference.. but can't tell you why.
My version is premade harness that sits inside an OEM ecu box.. the only way you'd know it was different is the wide and cable and vacuum tube coming out of it.

[Gaz2405]

I have no idea as I'm on drive by wire conversion so no IACV at all with my own fully home made engine wiring harness, it just adjusts the butterfly.

But Gaz is using "hbridge1 B (6a, G10)" which is pin 10 of the grey connector.

While john is set to "aux 6 (5a, g4) which is pin 6 of the grey connector.

How have you got it wired John?

Are you both using the plug and play adapter?

I'm using the plug and play adapter from rrr.

[Gaz2405]

Right I've emailed out the logs..
In terms of what I experienced, I started on a working map and then started to alter the settings according to what @Gaz2405 posted.

You'll see in the logs how things changed after a couple of mins!
I also then tried locking the ignition angle at 11 and the revs massively picked up. It didn't do that before.

I also then started trying to alter the fuelling but didn't really succeed in reducing the revs etc (wrong approach I know)

Then following the advice to switch to 200 I went back out to the and it won't idle now to stay on!

Switches to 200 ? You mean the 200hz setting?

Mine runs and alters at 120hz, but I've seen them set upto 240hz in others maps I've looked at.

[Gaz2405]

Also, what's your TPS reading? This is a key bit of info.

[simonrobinson]

I'd be temped to just unplug the idle control valve, that way you can see if its doing anything at all.

And if its not doing anything, then try it on the same hbridge channel as Gaz's instead. (but don't overlook that it might be 1) not on the right channel, and 2) rusted inside ! Its not always just one problem in life)

Gaz - from his logs it sits at 1% when at idle, and at WOT its 68% I think as thats the max its been at a few times, it appears to work OK, and constantly homes to the the same 0.57v to 0.59v tps input.

[shnazzle]

From what I could tell the IACV PWN settings looked correct and to me it does look to be doing stuff.

PID isn't on, I did have it on. Took a fair bit of fiddling but in my opinion it's for corrections, not for actually getting it to idle nicely. It's to compensate for outside factors that affect the otherwise well sorted VE.

Personally I think the lower range and cruising ranges are trash and not helped by the dodgy injector settings.

I know what I'd do, but it's not my money or time

[Gaz2405]

What injectors is it running, are they listed in the injector wizard?