Emanage Ultimate in an R34 GTT - question/help needed

[pear]

Hey Guys,

I'm looking for people that have an EMU installed in their R34 GTT (Manual pref). I'm in Australia and we don't have that many EMU's installed OR Tuners with much experience. There are a couple of guys in Melbourne and Sydney, but I'm in Brisbane 1000-2000 km away. I've PM'd a few ppl (thanks for the replies), but posting the the question here would be easier!

Car / Mods.
R34 GTT - 2000 S1 Manual
- Exh turbo back with high flow cat
- Blitz Boost controller
- Upgraded FPR
- Oil cooler and filter relocation kit
- and the EMU -- It's the latest 'e' board with the ign adapter for 34 gtt. software is also latest version

was running approx 175rwkw before EMU install, now approx 205rwkw
EMU was installed and tuned at a workshop on a dyno, but they haven't been able to answer the questions below. Last point - during the tune, my o2 sensor went belly up. so tuning the lower rev range was hard. that's now been replaced and the map ajdusted (no more stalling at traffic lights)

** But, lots of questions SORRY!

1) I have an error log - not sure if anyone has had similar problems??
[2008/01/26-15:22:11]------------------------
65520:0441-0004[Incorrect 1CH ignition input signal]
65521:0442-0005[Incorrect 2CH ignition input signal]
65522:0443-0006[Incorrect 3CH ignition input signal]
65523:0444-0003[Incorrect 4CH ignition input signal]
65524:0445-0001[Incorrect 5CH ignition input signal]
65525:0446-0002[Incorrect 6CH ignition input signal]

Any ideas??

2) Deceleration fuel cut - I've (with my mechanic) used a Nissan Consult tool and when the car is on decel, the injectors are still firing - 0.72. In the consult log you'll can see the inj @0.72 and the Closed TPS is ON - no throttle.

My fuel economy is a little up the creek - approx 17 litres to 100km (city) and not much better on the highway. when I'm cruising down a hill, lots of popping, bubbling when I get off the accelerator. The car is running Rich!

3) I had someone have a quick check on the maps. he had a question - wondered why most of the map adjustments had been made in the airflow map? he was thinking there would be more in the injector map.
would be great to compare maps and setup parameters (I know every car is different, but just seeing what maps/setting are used would be a start)

4) I know you the guys that installed the EMU configured the Knock sensor, I didn't see an option view or record this in the EMU Data Log. or did I miss something?
I looked in the EMU manual - Section 12 (on the loggin) has NOT been translated to English

If you can comment on ANYTING above, that would be great!!
thanks for your time!
Chris

[Bubble]

As with the pm to you Chris, the only one that springs to mind is Gambit on here for help with an Emanage

NEOGTR used to have one on his tiptronic GTT from memory as well.

[pear]

Originally Posted by Bubble

As with the pm to you Chris, the only one that springs to mind is Gambit on here for help with an Emanage

NEOGTR used to have one on his tiptronic GTT from memory as well.

thanks again

[Gambit]

1) thing is that error log has a date and time stamp on it from January, I'm assuming thats the date/time the emu was fitted so it's probably left over from the fitter not wiring up the ignition harness in the right firing order. Suggest you delete it and if the emu software generates another log then you know you have an issue. But if the firing order was wrong then the car wouldn't start, or would run very badly indeed.

I have an error log for mine for afm signal not detected, even though the fault was fixed at the time the error log remains until you delete it.

2) What do you have for your inector settings? If you have the stock injectors then the cc and lag times should all be set to 0.

3) I agree with whoever spotted it, alterations should be made to the injector table not airflow table. Modifying the airflow table is like using a SAFC it adjusts fuelling by lying to the stock ecu about your afm voltage. This in turn alters the ignition timing.

4) Knock sensor should be a selectable option on the datalogging screen, if not then whoever set up the emu might not have switched over the jumper that selects between air intake or knock monitoring.

And as for the fuelling going up the creek, looking at your mods I'm wondering if your fpr has been set up to the correct pressure?
Also the high flow exhaust and boost pressure (assuming you've increased it) will throw the fuelling out of whack anyway... but thats why you bought the emu ;-) The tuner should have adjusted the injector map to adjust your air/fuel ratio to suit.


Hope thats of some help to you Chris but if not then ask away mate.

[pear]

Thanks mate!
here's a few answers...

Originally Posted by Gambit

1) thing is that error log has a date and time stamp on it from January, I'm assuming thats the date/time the emu was fitted so it's probably left over from the fitter not wiring up the ignition harness in the right firing order. Suggest you delete it and if the emu software generates another log then you know you have an issue. But if the firing order was wrong then the car wouldn't start, or would run very badly indeed.

I have an error log for mine for afm signal not detected, even though the fault was fixed at the time the error log remains until you delete it.

Time/Date, yes this is old, but if I connect my laptop it will give me faults with todays date/time. Plus I have the orange(??) light flashing on the EMU
The car drives OK, so I think the firing order is right.

Originally Posted by Gambit

2) What do you have for your inector settings? If you have the stock injectors then the cc and lag times should all be set to 0.

I've just checked that, YES all set to 0

Originally Posted by Gambit

3) I agree with whoever spotted it, alterations should be made to the injector table not airflow table. Modifying the airflow table is like using a SAFC it adjusts fuelling by lying to the stock ecu about your afm voltage. This in turn alters the ignition timing.

If it's ok, I might email you my EM2 file - can you have a quick look and comment further - I realise ever car is different, etc. but if you see by setup, something may jump out at you is that ok?

Originally Posted by Gambit

4) Knock sensor should be a selectable option on the datalogging screen, if not then whoever set up the emu might not have switched over the jumper that selects between air intake or knock monitoring.

I think it's setup - but I did hear it will log in realtime only - Section 12 of my manual has NOT been translated to english - I'm not sure on all the icons/options in the data logging area.

Originally Posted by Gambit

And as for the fuelling going up the creek, looking at your mods I'm wondering if your fpr has been set up to the correct pressure?
Also the high flow exhaust and boost pressure (assuming you've increased it) will throw the fuelling out of whack anyway... but thats why you bought the emu ;-) The tuner should have adjusted the injector map to adjust your air/fuel ratio to suit.
Hope thats of some help to you Chris but if not then ask away mate.

yes, more mods = more fuel I'll get someone to check the pressure.
Thanks again!!!

[Gambit]

Sounds like there is a problem with the wiring (or ignition adapter) then, the emu isn't seeing the ignition signal being sent from the stock ecu. Only solution I can think of is to inspect the wiring and make sure everything is as it should be.

Knock sensor will show up in real time only yes, so if you have the datalogging window up and the engine off, you should be able to get a spike by tapping the block with a screwdriver or similar. I'm not sure if the 34 has the same sensors as the 33 but mine are set as non-resonant and a frequency of 7.02 and on the datalogging window the icon on the bottom right (3 little squares with lines coming out of them) click it and it gives you all the possible items you can log. Just over half way down the left and list just under water temperature should be knock sensor 2. If it isn't then the emu hasn't been installed properly.

Yeah, emails markm502@hotmail.com if you want to send over your map and I'll have a look at it, so far it sounds like your issues are wiring/install though but at least it's all fixable and usually easily.

Mark

[pear]

Thanks mate,
I've also been told to check the earth wire. and to make sure It's earthed to the chassis. I have noticed that 1) in my logs, my In vs Out voltage is a little off - other logs I have seen seem to display the same in/out voltage. 2) my Throttle isn't 100% correct - Min / Max setting is a little OFF what the ECU records. eg Min on ECU is 0.42v and on EMU is 0.38v

I think the knock is set to those settings, will check - thanks for the tip about tapping the block - (how stupid am i )

will email you a sample of file and log. cheers!!

[Gambit]

Had a look at the map and logs.

The input/output for the afm being slightly off isn't a problem, mines the same, but the throttle being slightly wrong is probably why your injectors are still firing when decelerating. The emu still thinks your applying throttle so fires the injectors. You ned to reset the values for it, remove the manual settings and let the software auto-detect the voltage range. Keep repeating it until it knows 0% - 100% perfectly.

Looks like your tuner used the injector map to pull fuel out at low rpm instead of trying to see what was causing the injectors to stay open. So after recalibrating the throttle you may need to add fuel in at the low rpm area, resetting back to 0 should be fine but I'd recommend a wideband afr gauge is used while checking it.

The other thing that might help is the rpm signal type, set it to crank angle. I found this smoothed out the injector pulse a LOT.

I can see you've upped the boost a bit, your afm is maxing out in a few places, but it also looks like you have the greddy map sensor is that correct?
Reason is, the airflow table has been adjusted to try and stop the fuel cut caused by maxing the afm out, along with clamping the afm voltage at 4.5.
Now, if you have the map sensor, I'd return to stock boost and get the fuelling sorted out at that level by returning the airflow map to 0's and adjusting the injector map.
Then switch to the map sensor, wind up the boost and adjust the injector table again to sort the fuelling.

Give that a try and we'll see how you get on from there.

[Bubble]

Our Gambit knows his stuff :angel7:

[Kemnay]

I haven't a clue what these guys are talking about, but a great thread to read all the same

[chipper]

Originally Posted by Bubble

Our Gambit knows his stuff :angel7:

Done In the true spirit of this club. Well done Mark.

[Gordon]

If we had a Award for Club member of the Month , then i would give it to Mark (Gambit) a true star and sounds like he knows his stuff . Well done Mark and i hope pear gets it sorted with your help

[Gambit]

Cheers guys

Certainly do my best to get him sorted as quickly as possible.

[pear]

Originally Posted by Gambit

Cheers guys

Certainly do my best to get him sorted as quickly as possible.

Mate, you and the guys up there have been a great help!!
Thanks again for talking to time to look over my setup and log

Being a newbie to the emanage/tuning, etc. it will take me a little understand all of your comments (but I'm trying to learn fast!)

[pear]

Originally Posted by Gambit

Had a look at the map and logs.

The input/output for the afm being slightly off isn't a problem, mines the same, but the throttle being slightly wrong is probably why your injectors are still firing when decelerating. The emu still thinks your applying throttle so fires the injectors. You ned to reset the values for it, remove the manual settings and let the software auto-detect the voltage range. Keep repeating it until it knows 0% - 100% perfectly.

I'm thinking it could be an earth problem... I have tried resetting the throttle - always sets Min/Max a little off what the ECU reads. I've also manually set it to the ECU's voltage 0.42 and 4.02, but it's didn't stop the decel problem.
I'll have another go!! thanks

Originally Posted by Gambit

Looks like your tuner used the injector map to pull fuel out at low rpm instead of trying to see what was causing the injectors to stay open. So after recalibrating the throttle you may need to add fuel in at the low rpm area, resetting back to 0 should be fine but I'd recommend a wideband afr gauge is used while checking it.

I did have an o2 sensor problem when the car was on the dyno (when EMU was installed). as a result, low rpm was terrible. New o2 when in and I had to take a bit of fuel out, otherwise, the car would stall when stopping at traffic lights... removing the fuel fixed the stalling.
better get it back on the dyno to sort it out properly.

Originally Posted by Gambit

The other thing that might help is the rpm signal type, set it to crank angle. I found this smoothed out the injector pulse a LOT.

Can I just change this - anything else to setup/adjust?

Originally Posted by Gambit

I can see you've upped the boost a bit, your afm is maxing out in a few places, but it also looks like you have the greddy map sensor is that correct?
Reason is, the airflow table has been adjusted to try and stop the fuel cut caused by maxing the afm out, along with clamping the afm voltage at 4.5.
Now, if you have the map sensor, I'd return to stock boost and get the fuelling sorted out at that level by returning the airflow map to 0's and adjusting the injector map.
Then switch to the map sensor, wind up the boost and adjust the injector table again to sort the fuelling.

Give that a try and we'll see how you get on from there.

Yes, the boost is up a little (still stock turbo and smic, so not too much). greddy map sensor = pressure sensor, yes?
anyway, yes it's installed, but only used for data logging at this stage.
but, thanks for your comments/tips. i'll get this sorted after the injector/decel problem is fixed.
stopping fuel cut, clamping the afm... not sure what all this means


thanks again!!!!