It does not have to be gounded to the ECU via the 4 pin connector. You only need to use the separate power and ground connector.
Installation can be completed with 3 or 4 wires total depending on if you are inputting the narrow band signal to the stock o2 input as well.
Please just follow the intructions in the tech section of our website.
another PLX wideband install thread
sorry Spunk but after my wideband thread i talked to you many great hpnda tuners and finaly got ahold of PLX before i got a soulution to my NB problem. now im relaying the information to other customers of yours so they dont have the headache i went threw. i dont know if you R&D the SMF series or not but your way didnt work for me and it seems like it doesnt for others. not trying to be a dick just trying to help people out.
i wish mine was as simple as yours i tried everything you told me. im not trying to be an ass hole but you insisted it was wiring when i had everything wired to your spec but didnt work. this is what was sent to me
.
"Use the ground pin (lower left) on the analog clip to connect to your S300.
This should resolve your issue.
Tim Oravec
tim@plxdevices.com"
"Tim.
Hey i ran a wire from the analog output like we talked about. I looked threw some info on the net and threw your ECU pinout on your site. i tryed ground A23 and A24 and no luck still didnt work. i tried the thermostat housing ground like recommended from other sites and no still nothing. but when i i tap the ground into the NB output (Pin D14) it works? i feel this shouldnt be right i want your input on this???"
"From what I know, that should be the right pin (D-14.) The Primary O2 is for narrowband sensors to the ECU. This is the pin that you should be connecting to. If you notice that the values from our unit (on our gauge) are not matching up with the information that you are receiving on the S300, then you should use the ground (A23 or A24.)
Tim Oravec
tim@plxdevices.com
"I have them both at D 14 and that's the only way it works
"I have not heard of it functioning correctly that way, but if you are receiving accurate data, it works for your application.
Tim Oravec
Sorry OP to high jack your thread but this is what i got and how mine works. Spunk i wish mine worked to your spec but it didnt. the NB would go off the chart unless i grounded its with the analog ground on the 4 pin connector????
.
"Use the ground pin (lower left) on the analog clip to connect to your S300.
This should resolve your issue.
Tim Oravec
tim@plxdevices.com"
"Tim.
Hey i ran a wire from the analog output like we talked about. I looked threw some info on the net and threw your ECU pinout on your site. i tryed ground A23 and A24 and no luck still didnt work. i tried the thermostat housing ground like recommended from other sites and no still nothing. but when i i tap the ground into the NB output (Pin D14) it works? i feel this shouldnt be right i want your input on this???"
"From what I know, that should be the right pin (D-14.) The Primary O2 is for narrowband sensors to the ECU. This is the pin that you should be connecting to. If you notice that the values from our unit (on our gauge) are not matching up with the information that you are receiving on the S300, then you should use the ground (A23 or A24.)
Tim Oravec
tim@plxdevices.com
"I have them both at D 14 and that's the only way it works
"I have not heard of it functioning correctly that way, but if you are receiving accurate data, it works for your application.
Tim Oravec
Sorry OP to high jack your thread but this is what i got and how mine works. Spunk i wish mine worked to your spec but it didnt. the NB would go off the chart unless i grounded its with the analog ground on the 4 pin connector????
I had a few days off so I decided to mess with this again.
I was just messing around with Smanager, more specifically the list of sensors. I came to the ELD and I instently noticed the problem. The minimum volts was .7 and the maximum was 1.4. As you know the PLX needs 0-5 volts to read everything. I fixed that and my ELD would actually read something other than 1.3. After that I could make adjustments and I could datalog the changes.
Was this in the instructions? I'll feel stupid if I overlooked it.
I was just messing around with Smanager, more specifically the list of sensors. I came to the ELD and I instently noticed the problem. The minimum volts was .7 and the maximum was 1.4. As you know the PLX needs 0-5 volts to read everything. I fixed that and my ELD would actually read something other than 1.3. After that I could make adjustments and I could datalog the changes.
Was this in the instructions? I'll feel stupid if I overlooked it.