Voltage F14

NZTY

New member
The problem I have got is that the wideband reading does not get displayed in tunerpro.I have an external wideband display which I have been using to tune with for the past couple of weeks but I would like to have the tunerpro output as well. At one stage it was working but only for a min and the values were the same as the external display, the rest of the time tunerpro AFR is constant 10:1.

I have checked the wiring, grounds, open loop, LC-1 output voltage(programmed) and patch for the bin and they seem to be all good but I am not getting any voltage at F14 pin.

Any ideas?

Thanks
 

skwayb

NWSTP
Re: Voltage F14

Is the Line coming from the LC-1 that goes to pin F14 on the ECM outputting any voltage? I would test it disconnected from the ECM and it should be outputting some volts. If not then the wbo2 controller is either programmed incorrectly, the ground for the programmable output isn't hooked up or the LC-1 is bad. I would definitely check the line out of LC-1 that you have wired into F14. It should show something votls wise.
 

NZTY

New member
Re: Voltage F14

Ok so I disconnected the F14 wire and got voltage and then reconnected it an got voltage at the terminal, but still no reading on Tunerpro. I've got the LC-1 programmed to 0 volts @ AFR 10 and 5 volts @ AFR 20. The only thing is when I open up the programmer the LC-1 has switched back to (Use Lambda) for analog out put two, is this the norm.

Thanks Again.
 

JSM

Active member
Re: Voltage F14

Either you don't have patch right, or the pin on ecm is seeing 0 volts, hence the 10: AFR.

Check the voltage at the pin with it hooked to ecm, I think you will find it is zero.
 

turbodig

Active member
Re: Voltage F14

NZTY said:
Ok so I disconnected the F14 wire and got voltage and then reconnected it an got voltage at the terminal, but still no reading on Tunerpro. I've got the LC-1 programmed to 0 volts @ AFR 10 and 5 volts @ AFR 20. The only thing is when I open up the programmer the LC-1 has switched back to (Use Lambda) for analog out put two, is this the norm.

Thanks Again.

Which patch did you use... one of the posted stock bins?
 

NZTY

New member
Re: Voltage F14

Yeah I have been using my own patched bin and I also tried one of the posted ones, both with the same results. When connected to the ECM I'm getting a voltage at F14 that is proportional to the value of the Wideband output.

Thanks for your help.
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

I am having the same issue . 10.0 all the time , good voltage from lm-1 output #1 , and wb gound crammed into b9 slot .

After now searching and reading the pin out diagram , I believe I am tapped into e14 . There is no pin @ f14 on my ecm . Does that sound correct ?
 

12secondSY

Syty Killer :(
Re: Voltage F14

Im fighting the same problem with my plx wideband, tunerpro RT, and $59. I still have no idea what it is. My voltage shows 1.1mV in tunerpro but whats going into F14 is 2.2V. My A/F in tunerpro shows 10:1. Everything seems fine, double checked all grounds, only the PLX wideband box is checked in tunerpro. I stopped messing with it because something else broke on my truck but I'd like to know whats causing this also.
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

Update*
I did have it wrong . I inserted my wb out into the f14 hole and it works perfect now .Before I could have sworn someone said to use a t-tap to interface the circuitry , so I didnt think to check that empty spot .

Hopefully this will help someone in the future .
 

NZTY

New member
Re: Voltage F14

I am still have the same issues after a second re-wire. I'm starting to go crazy thinking of 10.1 all the time.
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

Are you sure you used the patcher program correctly ? After a bin is patched , it is left as a bin.pch file . Then you have to change the file extension back to .bin from .pch

Maybe you did but I figured it was something to ask . If you have the output programmed correctly , and are seeing between 0-5 volts at the wire going into the empty F14 hole , and have the wb ground going into the empty hole in bb9 , there is nothing else that should be done except patching the bin . If it still isnt working , then something was done incorrectly .
 

NZTY

New member
Re: Voltage F14

Yes I have tried both the patched bins that were posted up a while back and ones I did myself, both with the same result. I am seeing voltage at the F14 pin and WB is grounded to B9. The external WB display works fines so I don't think there is a problem with the controller or the sensor.

12secondSY mentioned in his post about checking the PLX box in tunerpro can someone expand on this. ie is there a box in tunerpro that needs to be checked to select WB type?

Thanks
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

He is referring to an option that the new code 59 has . Instead of patching each bin for whatever wb02 is being used ,in 59 you just select the wb from the list . Only the $58 bins have to be patched .

You sound like you would have the same issues even if switching over to a 59 .bin . Your ecm would still take in the wb data from those pins and if it doesnt work on a correctly patched $58 bin , 59 bin isnt going to make a difference .

Just to be certain you have the correct f14 pin , what color wire is directly beside it and under it on your ecm plug ?
 

NZTY

New member
Re: Voltage F14

I have Brown (analog out 2) in F14, green in F15, Blue in F13 and purple in E14. That sound correct? Yeah I want to get this sorted for 58 before I step up to 59.

Thanks again.
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

Thats what I have here . If you disconnect the ecm plug and test the voltage from the ecm side , do you still get voltage ? I know when my truck is off but wb is on , its reads 20:1 and 5.003 volts show on my meter . Displaying 10:0 like yours does in tunerpro, just means your ecm is seeing 0 volts like jeff said or the patch just isnt working .
I am positive your problem is something small and simple , yet overlooked . Sorry I couldnt be of more help , but I am out of good ideas .

Let us know if you come up with something .
 

NZTY

New member
Re: Voltage F14

I get around 5.4 volts at the plug when disconnected from the ecm. I'm sure it is something simple but it is usually the simple things that are the hardest to find. I might try code 59, you never know!

Thank for your efforts anyway and I'll let you know if i get it sorted.
 

MRKING

New Parts for Old Trucks
Re: Voltage F14

I feel your pain though .Once It took me 2 months to realize the nuetral safety switch was unplugged .
 

NZTY

New member
Re: Voltage F14

WOW I really feel like an idiot. I found out that a had a bad terminal plug on F14, removed the terminal plug and stuck a wire onto the pin and batman problem solved. Now I can finally record wideband data and not just look at my display.

Thanks for all your help guys.
 
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