Haltech and Closed Loop Control

[Captain KRM P5]

I'm digging more and more into the HalWin software and found a few things of interest. I want to wire in my AEM wideband o2 and have the F10 tune with that but need a little guidance as to what all this means. Attached are a few images of menus in the software.

Question is, how would I use this to my advantage?

 

[Super Matty P]

OMGHI2UL0LJUaNBuTT$eKSHELP!!!!11!!one!!1

dude, that is awesome. make that 2 very interested peoples...

 

[jrodhotrod]

I haven't actually done any of this but here is some prelim info I got from haltech support when I emailed them last summer:

I wrote:

Hi,

I just had one of your dealers (HiBoost Turbo Systems) Install an E6X in my Mazdaspeed protege. I also have the AEM Uego Wideband that has a pair of 0-5v outputs that can be hooked into an EMS for data logging, etc...

My question to you is, how can I hook this up to my haltech and what can I do with the wideband installed, can it take the place of the stock 02 sensor?

-Jared

They Responded:

Hello Jared,
The AEM UEGO has 2 outputs a 5V and a 1V - the 1V output can be fed to the E6X O2 sensor input and take the place of your standard O2 sensor.
The 5V output currently runs to the display unit - this can be fed into the Haltech spareAD input and the voltage logged in a datalog or seen on the engine data page (note this will not be displated as a air fuel ratio - only a 0-5V votage).

If there is anything else i can do to help, please let me know.

I wrote back:

First, can I just say WOW, thanks for the quick response.

Second I just want to clarify.

My AEM UEGO has the following 2 wires that come out of it for connection to other devices:

<LI>User-programmable 0-5v analog output included for use with data loggers and ANY engine management system
<LI>Serial data stream included for output of AFR (RS 232)

Which should be hooked up to which input on the Haltech and is it recommended to use the wideband in place of the factory narrowband?

Is there a way to have the hatch log it as A/F ratio as opposed to 0-5v?

Also... My tuner didn't have the most recent Halwin software available for me, is it possible that I could have a copy of it emailed to me? He did all my base tuning on the dos software, but my only laptop is running Windows XP.

They Wrote back:

Hello Jared,
You can put the 0-5V output into the O2 sensor input on the haltech but note you will need to change the settings to 0-5V wideband sensor in the software.

The halwin software will actually be available for download from the website in the next couple of days - i would suggest that you check back at the website soon as the file is quite large and most email accounts wont handle it.

If there is anything else i can do to help, please let me know.


Note that the halwin software is now available from their website for download.

 

[Super Matty P]

very very nice.

I told Ken in another thread but Steve Kahn of RX7 tuning fame will be coming down to tune my haltech at the end of this month and I'll make sure to get the info from him. If I could somehow scrape together the money to buy one of those expensive-ass o2's I'll have him set it up on mine and send you guys the info.

 

[Aricjm15]

ok, this is how I think it should be set up
min RPM 500, this way it will tune to stoch or whatever at idle
max throttle 45%, or whatever keeps you just out of boost, remember we want to run 12:1 under boost
min temp 0degrees, might as well have it tune the cold start on its own

sensor voltage 0-5 (wideband)
Sensor type UEGO

engine cycles between correction, lets do 4, the lower the number the more often it will make a change
O2 sensor Stoich voltage, ok this is where it gets tricky, we need to figure out what stoich is on the UEGO, OR we could enter in a number and have it tune to that (we could set it to tune to 12:1 if we really wanted we just need to know the correct voltage)
max fuel increase, if you wanted you would make this as high as you like
max fuel decrease, -20 sounds fine, this is saying that the haltech can pull up to 20% of your fuel to get to the desired O2 voltage range

02 sensor voltage at idle, so what ever you want your car to idle at (like 14.7:1) you would put the O2 voltage here
Startup delay, this is probably here so it does not mess around to much with the post start enrichment, 120 seconds is two minutes, could probably cut this in half

 

[Captain KRM P5]

ok, this is how I think it should be set up
min RPM 500, this way it will tune to stoch or whatever at idle
max throttle 45%, or whatever keeps you just out of boost, remember we want to run 12:1 under boost
min temp 0degrees, might as well have it tune the cold start on its own

sensor voltage 0-5 (wideband)
Sensor type UEGO

engine cycles between correction, lets do 4, the lower the number the more often it will make a change
O2 sensor Stoich voltage, ok this is where it gets tricky, we need to figure out what stoich is on the UEGO, OR we could enter in a number and have it tune to that (we could set it to tune to 12:1 if we really wanted we just need to know the correct voltage)
max fuel increase, if you wanted you would make this as high as you like
max fuel decrease, -20 sounds fine, this is saying that the haltech can pull up to 20% of your fuel to get to the desired O2 voltage range

02 sensor voltage at idle, so what ever you want your car to idle at (like 14.7:1) you would put the O2 voltage here
Startup delay, this is probably here so it does not mess around to much with the post start enrichment, 120 seconds is two minutes, could probably cut this in half

someone's been doing his homework i believe AEM has a listing of all the AFR voltages on thier website for this particular sensor / gauge combo.

the current cold start enrichment I have programmed in is 60 seconds. then its gone. gone in 60 seconds? ahaha? eh yeah...moving on...

the tricky part to me is actually wiring up the o2 sensor. the emails Jared sent me from Haltech support indicated that one of the wires was to display data on the Gauge Page while the other was the actual input.

 

[Aricjm15]

there are TWO output wires on the UEGO
one is a 0-5 volt for data logging (plug into haltech)
and the other is either a 0-1 volt or a 0-5 volt, you can choose with the set screw knob thing on the back of the UEGO

 

[Super Matty P]

hmm, makes sense....this is good reading.

 

[HiBoost TS]

Ken,

Yes, there are two wires form the UEGO. I would use the 0-1 volt wire. That needs to go into pin # 2. If you need this wire, I can send it to you. It must be a shielded wire.

The settings should be according to your target.

With the wideband working, check the readings, in voltage, in the engine data page. So if you have, lets say 0.7 volts at idle and a 13.7 or so A/F ratio, then set that to 0.7. The same during icruising.

The TPS limit (upper throtle limit) is best at 30%

The lower than I would do 500 rpms

The O2 sensor Threshold voltage must be 600mv

Max fuel increase or decrease can be 10%

Engine cycles at idle 20

 

[HiBoost TS]

The setup for the decel cutoff:

Deceleration cutoff parameters: Enable
Decel cutoff: 2000 RPMs

If you want the Overboost fuel cut,

Overboost fuel cut: Enable
Overboost limit: example 800 mbars (11.2 psi)
Overboost restore: example 700 mbars

This will work like a boost limiter as an engine safety device

After all the cahnges are made, please click on "apply".

 

[Captain KRM P5]

Ken,

Yes, there are two wires form the UEGO. I would use the 0-1 volt wire. That needs to go into pin # 2. If you need this wire, I can send it to you. It must be a shielded wire.

The settings should be according to your target.

With the wideband working, check the readings, in voltage, in the engine data page. So if you have, lets say 0.7 volts at idle and a 13.7 or so A/F ratio, then set that to 0.7. The same during icruising.

The TPS limit (upper throtle limit) is best at 30%

The lower than I would do 500 rpms

The O2 sensor Threshold voltage must be 600mv

Max fuel increase or decrease can be 10%

Engine cycles at idle 20

yes please send me the wire. pm me if you need my address.

 

[HiBoost TS]

yes please send me the wire. pm me if you need my address.[/QUOTE

Yes Ken, please PM me your address.

Juan

 

[Captain KRM P5]

The setup for the decel cutoff:

Deceleration cutoff parameters: Enable
Decel cutoff: 2000 RPMs

If you want the Overboost fuel cut,

Overboost fuel cut: Enable
Overboost limit: example 800 mbars (11.2 psi)
Overboost restore: example 700 mbars

This will work like a boost limiter as an engine safety device

After all the cahnges are made, please click on "apply".

mbars are great and all but my software reads in kPa. why not use the 0-5 volt wire?

 

[RyanJayG]

10 mbars = 1 kPa

 

[Captain KRM P5]

10 mbars = 1 kPa

thanks Ryan

 

[RyanJayG]

anytime... and it is linear... 800mbars = 80 kPa, etc.

 

[Captain KRM P5]

yes please send me the wire. pm me if you need my address.

Yes Ken, please PM me your address.

Juan

pm sent - why not use the 0-5 wire?

 

[Super Matty P]

man oh man....I'm debating on what I should buy next ......carputer or UEGO....hahaha

 

[jrodhotrod]

Ken,

Yes, there are two wires form the UEGO. I would use the 0-1 volt wire. That needs to go into pin # 2. If you need this wire, I can send it to you. It must be a shielded wire.

The settings should be according to your target.

With the wideband working, check the readings, in voltage, in the engine data page. So if you have, lets say 0.7 volts at idle and a 13.7 or so A/F ratio, then set that to 0.7. The same during icruising.

The TPS limit (upper throtle limit) is best at 30%

The lower than I would do 500 rpms

The O2 sensor Threshold voltage must be 600mv

Max fuel increase or decrease can be 10%

Engine cycles at idle 20

Juan,

Is the wire that you are talking about the same one that I already have for the trim knob that didn't work? Just have to attach the 0-1v wire from the AEM to that and it goes into the aus connector on the haltech?

Or can we tap one of the wires in the haltech harness for input so that I don't lose the secondary trim control for fuel?

 

[HiBoost TS]

pm sent - why not use the 0-5 wire?

You can use either one. The 0-1 is used more as the voltages on most the stock sensors are 0-1.

But you can use either one as long as you do the right setup.