G'day gents,
I have discovered that our oxygen sensor controller has been out-of-whack for quite some time, despite my attempts at calibration. We do not have easy access to a dyno, so finding this out an hour into a tuning session is a considerable waste of very precious time. We use this guy (AEM), and calibrate the ECU to accept the range of voltages shown in the instructions PDF.
So here's the question: What do other teams do to make sure your wideband is reading correctly? I'm all for sticking my schnoz in an exhaust stream and gauging that way, but the accuracy just isn't quite there. Cheap gauges? Second controller/sensor? I would also be interested in hearing peoples opinions on what could cause an off calibration on a "never needs to be calibrated" unit (assuming sensor is OK). Please discuss.
Second: We may need to acquire another controller, and while having two of the same type makes the most sense, I just don't really trust things with the AEM stamp (long story). So, I browsed around and the Innovate LC-1 seems to be a popular and easy solution, but it has mixed reviews. There are old topics discussing it, as well as some alternatives, but I'd like to hear some up to date testimonials regarding the different options.
Thanks,