Haltech and Closed Loop Control

[HiBoost TS]

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?

No Jared, this wire is separate from the trim box wires. In fact you can use the signal from the stock O2 sensor to make it closed loop. Just run a wire from the stock sensor signal wire into pin #2 in the Haltech connector.

BTW, I have the new trim to send it to you. Are you still at the same address?

 

[jrodhotrod]

No Jared, this wire is separate from the trim box wires. In fact you can use the signal from the stock O2 sensor to make it closed loop. Just run a wire from the stock sensor signal wire into pin #2 in the Haltech connector.

BTW, I have the new trim to send it to you. Are you still at the same address?

Yup, the same address.

Thanks!

 

[Captain KRM P5]

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.

whats the advantage/disadvantage to either?

 

[Dexter]

0-5 is used on widebands because of the higher resolution....i dont know how that pertains to your question because i failed to understand what you are trying to do..

if you are piping the data from the AEM wideband which supplies a 0-5 output to the haltech i would use 0-5 V. if it only supplies 0-1V then you will have to use that.

 

[Captain KRM P5]

0-5 is used on widebands because of the higher resolution....i dont know how that pertains to your question because i failed to understand what you are trying to do..

if you are piping the data from the AEM wideband which supplies a 0-5 output to the haltech i would use 0-5 V. if it only supplies 0-1V then you will have to use that.

it has wires for both

 

[Dexter]

then use 0-5 wire from AEM and select 0-5 on haltech

i belive the 0-1 wire on the AEM is more for feeding to a stock ECU to simulate a narrowband sensor .

 

[LinuxRacr]

Right. Use the 0-5v.

 

[Captain KRM P5]

Right. Use the 0-5v.

have you done this yet?

 

[glyph]

anything happening with the closed loop option?

 

[LinuxRacr]

Been too busy. Will get to it one of these weekends. I will have to use my stock O2 sensor. It's not like the Haltech will auto-tune anyway. The closed loop operation is just used for fuel economy and drivability.

 

[glyph]

I didn't know that. I was trying to determine just what it would do for me, if anything.

 

[mazpro]

subscribing, interesting stuff.

 

[ELEmental59437]

I connected my 0-5V input into pin 2 of the Haltech and I can get a readout on the screen but the O2 Correction readout only reads a constant 0.2%. In short I cannot get Closed Loop to work properly.

 

[glyph]

Do you have it hooked up to the actual closed loop input, or the trip input? Sorry, don't remember what pin 2 is.

 

[ELEmental59437]

pin 2 is the closed loop WBO2 input. I got closed loop to work while cruising but for some reason it wont work on idle. One problem was solved but I still have to tackle the idle closed loop. For some reason it stays at .2% O2 Correction.

 

[RyanJayG]

Ahmad, I know we decided to call it the "bosch" sensor in the haltech, but try it on the "NGK/NTK Uego" type and see if it alleviates the need for a .02V to work.

 

[HiBoost TS]

pin 2 is the closed loop WBO2 input. I got closed loop to work while cruising but for some reason it wont work on idle. One problem was solved but I still have to tackle the idle closed loop. For some reason it stays at .2% O2 Correction.

I does work, make sure that the below RPM settings is around 300 rpms. I will check all that is needed to have it work properly and will post the correct settings.

Juan

 

[LinuxRacr]

Ahmad, I know we decided to call it the "bosch" sensor in the haltech, but try it on the "NGK/NTK Uego" type and see if it alleviates the need for a .02V to work.

That's actually the setting he chose. We drove around yesterday, and it was the coolest thing. His A/F ratio readings never left the "orange" area on the AEM WB02. One thing we did notice is that the maximum throttle setting of 30% was too high as he could build full boost before the Closed Loop control turned off. I set it at 25%, and he tried again. Perfect. As far as the settings that Juan are talking about, we will try that out and see how that works out.

 

[Captain KRM P5]

pin 2 is the closed loop WBO2 input. I got closed loop to work while cruising but for some reason it wont work on idle. One problem was solved but I still have to tackle the idle closed loop. For some reason it stays at .2% O2 Correction.

closed loop o2 correction will not work if certain other correction factors such as barometric pressure lock are enabled at the same time. my haltech was set to have those correction factors enabled which led me to the same dilemma you are encountering, Ahmad

 

[ELEmental59437]

closed loop o2 correction will not work if certain other correction factors such as barometric pressure lock are enabled at the same time. my haltech was set to have those correction factors enabled which led me to the same dilemma you are encountering, Ahmad

Do you know which other corrections need to be disabled? I took off the barometric pressure lock and still do not idle in closed loop. Thanks