E-manage help please!

S

simigeri

Member
Yesterday I installed my E-manage Ultimate to my GTI-R. Evereything was fine, except an error message:
"Airflow meter input signal1 not detected"
That's why when the engine is cold, the idle is fine. But when it's become warm, it start to hesitate, and over 2000rpm, the engine want to stop. :sad:
Based on the Greddy's manual, and the Nissan ECU pinout diagram, everything is fine. Maybe something is wrong in the vehicle parameter settings?
When the SR20DET N14 is selected, the air flow meter is filled out autmatically. Or any jumper on the Greddy's mainbord is wrong placed?

Another thing:
Which type of speed signal received by ECU? Analog, digital? And how many pulses should I setup at the parameter settings? Or voltages?
Thanks
 
S

simigeri

Member
Problem solved, the input and output connection was swapped :-(
But now, when Emanage can recognize the input airflow, something interresting happend.
Idle is so bad, rpm aroung 500-700. I changed the "new injector size" to 350, az wit this value, seems to work fine.



But why?
Not used any map yet, everithing should be factory setting.

Here's my base map what I'm using, and a log made whit it.
Any good idea?
 
Fusion Ed

Fusion Ed

Active Member
I presume this engine is up to temp? It looks as though the water temp is being recorded wrong. What is the internal jumper of the ECU for the water temp set to?
 
Fusion Ed

Fusion Ed

Active Member
In fact what ever its set to, change it to the other option. Then set the injectors to 440:440. I think you may find that will fix your problem, the ecu is running very rich as it thinks its much cooler than it really is.
 
S

simigeri

Member
Fusion Ed said:
I presume this engine is up to temp? It looks as though the water temp is being recorded wrong. What is the internal jumper of the ECU for the water temp set to?
Click to expand...
At the engine side there are two temp sensor, as I know. One for the ECU, one for the gauges. One is on the thermostat house, another in the head?
The gauge in the dash shows me the temp in first thirds, on highway road. Second thirds in town, and at the last mark starts the fans. Thermostat was changes to a new one (76 degree?), the result is the same. Maybe a sensor is faulty.

On E-manage the JP13 set to 1-2 for temp, and the JP14 is open for the Knock, as I remember, but is should chek it. Wireing is aligned to this.
 
S

simigeri

Member
Fusion Ed said:
In fact what ever its set to, change it to the other option. Then set the injectors to 440:440. I think you may find that will fix your problem, the ecu is running very rich as it thinks its much cooler than it really is.
Click to expand...
If all maps are 0 filled and switched off, the parameters are good, how can this happend? In this case the E-Manage just logging, nothing else, right? Installation before the engine run fine.
If the jumper setting is wrong, E-manage recognise wrong datas, but the original ECU should work fine, couse the temp and knock signal (jp13, jp14) is not cutted, just spliced. The injections ang the ignition isn't modified by the Greddy yet.

Another thing:
E-manage can't log or show me the knock sensor signals? Or I shlud use an option port harness? Couse the det sensor wire is connected to Greddy.
 
Fusion Ed

Fusion Ed

Active Member
e-manage knock detect does not work.

Also you need to look at the temp sensor. Trust me just change the jumper inside the e-manage. Then do another data log and show it to me.

The e-manage manual is INCORRECT for the wiring configuration you have used so change it as i suggested above.
 
Last edited:
S

simigeri

Member
Fusion Ed said:
e-manage knock detect does not work.

Also you need to look at the temp sensor. Trust me just change the jumper inside the e-manage. Then do another data log and show it to me.

The e-manage manual is INCORRECT for the wiring configuration you have used so change it as i suggested above.
Click to expand...
So I should set the JP13 and JP14 both open? And shuold I rewire this input too?
 
S

simigeri

Member
Fusion Ed said:
You just need to change the jumper for the water temp sensor and don't connect the knock input at all.
Click to expand...
So, you have right!
Changed the jumper (JP13?), and the temp in the log is almost the double, aroung 75 deg.
http://systemixc.hu/geri/pulsar/second.lg2
But the situation is the same, I've got a stable idle when the injector size changed to 350-375 (instead mo 444).
All of the E-Manage maps are empty, everithing is 0 ,set to factory setting, as linked before.
So the EMU doesent modify or compansate anything, like the water temp or anythig else :?
 
S

simigeri

Member
Just for sure: there are two different type of connections, spliced and diversion connetion.
With the spliced sensor connections the EMU don't cause any sensible modifications, 'till any compensation are filled (water temp, TPS -> to inj or ign mod...). I can disconnect them without any problem, and the ECU do his job as before.
(for example is the same, the EMU sens the water 45 or 75 deg, cause the idle inj and ign driven by ECU)
The diversion connections have to be good connected, cause if the ignition (one connection to distributor) and injection (4 to 4) wireing is faulty, than the engine can't run.
Right?
What's may wrong???
 
S

simigeri

Member
On EMU there are 20 jumpers. I found on the net two different settings. One from GTIR mod club, one from S15 builder site.
Both are SR20DET Nissan engines, but the settings are different:
  • JP8: Ignition output signal 5V or 12V
  • JP13: Knock/water (that's clear already ;-) )
  • JP17: Airflow out/VTM (we are using it?)
Because when the airflow in and out was swapped by me (airflow input was 0V), the idle was fine, untill the rpm reach 2000. That was the fail safe mode?
 
Fusion Ed

Fusion Ed

Active Member
Ok well the temp is better, thats good.

JP8 doesn't matter, 12 is probably better.
JP13, sorted
JP17 yours is already fine.

I want to see a log showing engine off then starting then rev to 2000 rpm showing the problem. then off.

If you can do that it will help.
 
S

simigeri

Member
Fusion Ed said:
I want to see a log showing engine off then starting then rev to 2000 rpm showing the problem. then off.

If you can do that it will help.
Click to expand...
Tomorrow I'll overwrite the injetors 444-444. Than I'll do a log from cold starting till warm it up.
Thank's for your help!
 
Braveheart

Braveheart

New Member
Fusion Ed said:
Perfect, and no problem!
Click to expand...
simigeri.... don't take this the wrong way but I'm glad to see your having problems with E-manage ultimate... ;-) Good to see you open a thread, ask questions, explain setting and alter setting and great to see Ed get involved with the support. There is a chance I will get around to installing and try to set mine up... :oops: Following with interest.. :thumbsup:
 
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