ECMlink Setting up o2 sim and diagnosis on front o2 sensor

[fabian95tsi]

Ok fellow tuners I have a really quick question concerning the narrowband simulation on ecmlink v3. I have a brand new Bosch o2 in the front location that does not oscillate, my innovative lc1 is in the rear location and wired into ecmlink to the rear o2 pin. Here's where I run into trouble, to make sure my simulation is setup properly what all am I supposed to enable and disable on link? I know that narrowband simulation gets enabled, which i do but what about lock rear o2 tab and lock open loop tab in misc? Thanks guys I'll update soon as I get some help.

 

[edged1g]

Why would you lock open loop? The whole point of a NBO2 is to get closed loop operation.

Regardless, the process is this. On the ECU Inputs tab, in the lower section, where it says wideband, select rear O2 then press copy to ECU. Then go to the NBO2 sim tab, and enable it. Check here for the switchpoint value and more details.

 

[fabian95tsi]

Where I'm getting confused on locking open loop is that in misc tab the little explanation next to it says it effectively disables front o2 signal which to me since in trying to use my rear location mounted lc1 wideband and use its signal to simulate nbo2 that's what I would need to do...see where I'm comfused? Now can i use my lc1 in the rear location and use nbo2 sim or do i need to move my lc1 to the front and rewire it to pin 76? Thanks for the help, I should have just asked " I have my lc1 in the rear location and wired to the rear o2 pin, how do I make o2 sim work in my scenerio.

 

[edged1g]

Locking in open loop ignores *ANY* narrow band signal and prevents the car from closed loop. Perhaps that description could be a little clearer, but none the less, you don't want to lock in open loop. Just follow the steps I listed above and NBO2 sim should be working and your front O2 will be ignored.

Ideally, if you are going to be running Narrow band sim full time, you should move the lc1 to the front O2 and plug the rear. It will have faster response times(responds faster to mixture changes).

 

[fabian95tsi]

Ok thanks for the clarification. If I do move my lc1 to the front what settings do I adjust for disabling the rear o2, lock the rear o2 voltage etc. or does that not matter. Thanks again for the help. Hopefully I can get this car dialed in perfect for my cruising needs. Wot is just fine at 15psi and even better at 20psi hahaha.

 

[edged1g]

If I do move my lc1 to the front what settings do I adjust for disabling the rear o2, lock the rear o2 voltage etc. or does that not matter.

If you do move it I don't think you need to change anything because you already have the wideband installed in the rear O2. You have the DTCs disabled for it already, right? If so, you are fine. When you get a chance, post a log up and let me take a look.

 

[fabian95tsi]

ok so i posted a log that i captured last night, but this is with no narrowband sim. I want help to diagnose why my front o2 is not cycling. I replaced the original one because of the same thing. The replacement o2 senosr is a bosch from orileys. Tell me what you guys think. I like to add that i know my coolant temps are high but im running a mishimoto radiator with one pull and one push fan, they are wired so they both come on at the same time, brand new mitsu themostat, half gallon of pure antifreeze and the rest is distillled water. The car has been idling for quite some time as well. I dont know what else to do to keep my temps down.

 

[fabian95tsi]

If this matters here is a log of a 1st through 4th gear wot pull.

 

[fabian95tsi]

Ok so I found some info on testing the new o2 sensor I bought basically it was to check for continuity between the 2 white wires which were for the o2 heater I believe...well I didn't have any continuity, so I ordered another new o2 sensor. I also checked to see how much voltage I had at the engine harness power supply wire for the o2 sensor..I had 11.9v. Last thing I did was check for continuity between the ecu harness connector and the o2 sensor wires and they were all good. My new o2 sensor came in today I tested it before I left orileys and it had continuity. So I rush home install the new o2 sensor and disable nbo2 sim and started my car....Woo hoo...my o2 is cycling and my car finally idles like she should, I had to make some changes to my tune but so far so good. Thanks to everyone that helped and happy boostin.