Any Wideband o2 that records?

[Bobby Fazio]

I have been battling with this Accel DFI Gen 7 and it's Engine Analyzer box to get an accurate air/fuel reading with the wideband o2 sensor with no luck. I have moved the sensor to three different places and purchased a few new sensors this year and still not working. Tried the collector and now the primary 12 inches from valve and it's stuck at 17.99 during a run which isn't possible according to my plugs. WIll never know if my VE table is set right or target AF ratio is accurate until I get something that can actually work.

I need something that records along with the rpms.

[John Nechiporchik]

Bobby, Is the logger recording rpm , battery voltage and any other functions you have configured into the system?
If so, you may want to check the O2 sensor wiring at the DFI box.
Also, these units are very sensitive to proper grounding. With ignition on, activate your Analyzer while hooked up to your laptop and see if the O2 sensor lights on the bottom left of the screen turn green after 15-20 seconds or so. If they do, that indicates the sensors are heated up and functional. If not, you are not getting power to the sensor(s).

I have the old Accel Calmap unit and have the DFI box as a stand alone only used for the O2 readings.( got the car this way). I believe 17.99 is the system default reading when the O2's are not functioning properly.
I am no expert on this stuff.....but I struggled thru the learning process and finally got it to work.
I have a phone number of a service guy in Alabama that is an Accel dealer. He was a big help in getting mine functional. Let me know if you need it and I'll dig it up.
Hope this helps.
John

[Bobby Fazio]

It records 16 channels of data and they seem to be fairly accurate on the log except for air fuel. Took a while to get that to record right! Yes the green light does come on for the sensor so I think the sensor still works. Is the leaded fuel capable of killing the sensor after one run? Or is the two-step damaging it with cylinder cancelation and rich conditions? Thanks for your help John.

[John Nechiporchik]

Bobby, Not sure what the answer is to your two questions. I run VP Leaded race fuel and have a 2 step as I'm sure many others do.
The Accel dealer/installer I talked to is Lee At Hesco. # is 205-251- 1472 and his E-mail is LEE@HESCO.US
I have found that Accel has no tech service to speak of unless you contact one of these dealers.

John

[cad]

The O2 sensor will standup to alot of runs before failing. We run VP 110.
We use the Innovate LM1 and an Innovate accessory to pull RPM from the MSD. It has a record button, and then I download to view the run.

Clark

[Alan Roehrich]

The best wide band AFR sensor I've ever used is the NGK Powerdex AFX. It does not record by itself, but it does have an output channel that will work with any good data logger.

We ran the same O2 sensor for around two years, until it was damaged during a landing from a huge wheelstand.

Someone convinced one of us to try an Innovate, that has never worked right.

I have hooked a couple of good friends up with the Daytona Sensor stuff, they have been extremely happy. Daytona Sensor is what we'll be running pretty soon.