-= Ultimate Emanage Tuning Thread =-

[AudioPmp23]

I think I may be lost at this tuning shit. Can someone give me some feedback on my tune?

The car runs allright, though I can't for the life of me get the fucking O2's to cycle at idle no matter what correction I input (they did fine b4 EMU.) Acceleration seems to be good for the most part. Dont see much knock.

MODS:

-13T's @ 15psi through Greddy Profec B original
-AEM FPR @ base ~44psi
-Supra fuel pump hotwired constant @ 13.5V
-EVO 560cc injectors flow tested at almost exactly 560 avg.
-Stock MAF, Vac reduction, Stock exhaust less 2 precats

--EMU is at stage 2 wiring. I think I have the I/J map on here but the wires aren't connected, would that affect the airflow adjustment at all?

Tried playing with Master X's tune tonight too. His ISC counts were in the 60's and couldnt get his O2's to cycle either..He'll be chiming in with more details... Sucks, we have like almost no one here in CO with beaucoup d'experience on EMU tuning....

[Racer_X]

yeah, that's kinda wierd, because mine was/is routed straight to the plenum and it has a clean signal also. I also have about 4 other hoses comming off of a spliter 'though.

[Gray Haze]

My sensor is threaded directly into the manifold, with no noise.

[BlackStealth]

Originally Posted by AudioPmp23

The car runs allright, though I can't for the life of me get the fucking O2's to cycle at idle no matter what correction I input (they did fine b4 EMU.)

--EMU is at stage 2 wiring. I think I have the I/J map on here but the wires aren't connected, would that affect the airflow adjustment at all?

Because you're at stage 2 you can't use any of injector maps turn off all the unneccessary maps and all others that aren't being used to keep things simple:
I/J Adj Map 1
Acceleration I/J Adj Map
Rev Limiter Cut Setting
Anti Engine Stall Setting
Idle Adjustment Setting

Narrowband o2 sensors won't cycle at idle if fuel delivery is too low (lean) -- I'm assuming your o2 readings are very low. Richen the airflow adjustment map at idle until they begin to cycle. I've observed this many times before. Eventually the front o2 sensor will cycle but not the rear, keeping richening it up until both o2 sensors cycle.

[Racer_X]

how did you thread the greddy sensor into the manifold?? Does the nipple at the end thread off?

[AudioPmp23]

Originally Posted by BlackStealth

Because you're at stage 2 you can't use any of injector maps turn off all the unneccessary maps and all others that aren't being used to keep things simple:
I/J Adj Map 1
Acceleration I/J Adj Map
Rev Limiter Cut Setting
Anti Engine Stall Setting
Idle Adjustment Setting

Narrowband o2 sensors won't cycle at idle if fuel delivery is too low (lean) -- I'm assuming your o2 readings are very low. Richen the airflow adjustment map at idle until they begin to cycle. I've observed this many times before. Eventually the front o2 sensor will cycle but not the rear, keeping richening it up until both o2 sensors cycle.

That's the funny part, the O2's are stuck rich (.94 -.98) and no matter what I input into the first few cells I cant get them to cycle. I'll go back through and de-select those other maps just in case they are causing trouble.

Did the correction numbers in general look okay?

[BlackStealth]

So it's not so much that your o2 sensors won't cycle, it's insanely rich for idle. Your airflow correction numbers seem reasonable although much leaner at idle than what I had for my AEM FPR@43psi setup.

Try switching karman airflow loading scale for TPS scale so it'll behave more like a SAFC and see if that makes an impact. It's a bit unusual for people to use karman airflow loading, as most use boost(PSI) or TPS scaling and perhaps there's a bug with it -- who knows. I'm aware of the advantages of using karman airflow scaling over TPS, but since you've got a problem it's worth looking into.

I find it strange that both you and MasterX both have identical problems.

[AudioPmp23]

Yeah no joke, I tried re-scaling his on TPS and didnt have much luck. Im using shiver's datalogger and I thought maybe there was a bug there but Master X's A/F gauge behaved similarly...pegged on rich.

I just downloaded MMCD to see if that will yield similar results. A guy on our local forum said there are tons of problems with E-Manage in general but I guess I havent seen that many issues reported here.

Does the factory barometer and altimeter pass through the EMU? We're in Denver, CO ~5200 ASL. I thought those wires are separate but who knows...trying to think of any and all ideas..

[Master X]

So his correction looks ok? We were talking about that last night. Most peoples maps I see here have it richer at idle and leaner with more load/rpm. Nate's is the opposite. So we were curious there.

Also, could i have done something incorrectly when removing the safc? I removed all the splices and reconnected the airflow connection. Anything I may have missed there?

I don't think I mentioned that the airflow doesnt respond at all with the correction map no matter what its set to, but if i test it just using the before and after it pegs to lean (this is with the airflow correction off). So I do get a response there although it definitely should be as lean as it gets.

[BlackStealth]

Originally Posted by AudioPmp23

Does the factory barometer and altimeter pass through the EMU?

Yes the factory barometer and IAT both passed through as usual (assuming you didn't replace them with a GM IAT and resistors).

Originally Posted by Master X

So his correction looks ok? We were talking about that last night. Most peoples maps I see here have it richer at idle and leaner with more load/rpm. Nate's is the opposite. So we were curious there.

You're right most maps do look like that, low load is heavily influenced by which fuel mods that have been done. These minor differences from other people's map isn't where your problem is at, it's something else.

Originally Posted by Master X

Also, could i have done something incorrectly when removing the safc? I removed all the splices and reconnected the airflow connection. Anything I may have missed there?

The only important one that stands out is the airflow signal wire as it was separated into two. You can confirm the wiring is correct by monitoring airflow input and output HZ numbers.

Originally Posted by Master X

I don't think I mentioned that the airflow doesnt respond at all with the correction map no matter what its set to, but if i test it just using the before and after it pegs to lean (this is with the airflow correction off). So I do get a response there although it definitely should be as lean as it gets.

Is your emanage hardware taking hold of your settings? You can confirm this by booting up the emanage software only and don't load any maps from your hard drive, but instead download the map from your emanage and verify it is what you think it should be.

With the emanage wired/configured correctly you should be able to stall your engine out with excessive negative airflow correction. If you can't then something is wrong and it's not a problem with map tuning any longer.