Shalmaneser wrote: ↑Sat Jul 22, 2023 1:38 pm
Not getting a reading from the hall effect cam sensor …
Have you traced all components in the
entire circuit, for where the signal is lost or corrupted? Such as - sensor output OK at the sensor? Signal still found at ECM connector? Signal found at PCB input? Signal still found at board conditioning circuit input? At the output? And so on.
Shalmaneser wrote: ↑Sat Jul 22, 2023 1:38 pm
Do people run their wideband when attempting first start? Am a little nervous of destroying the sensor, although clearly I'd like to know how the car is running.
I do not pre-heat the O2 on first-start, as fueling and adjustments are about as bad as they will ever be at that point, and casual observation should suffice for guiding it to run to warm for the seconds until the sensor begins reading. Normal operation. However, once the warm idle and low-speed areas are tuned reasonably well, and warm restart is solid, I
may pre-heat the O2 to dial-in first-fire, ASE and WUE affects. That risk is entirely on me, balanced against the perceived benefits of doing so.
As a perspective, and in the scope of the entire project and costs; I regard O2 sensors as consumables. Like oil, filters, spark plugs, etc. I use them for what I need, and replace them when appropriate or when they fail. It is a cost of doing what you're doing. How important is the data versus what it could cost you if it fails?
Shalmaneser wrote: ↑Sat Jul 22, 2023 1:38 pm
I've got the luxury of a running motor/ECU combo so am tempted to get the car up to temp before trying first start with the speeduino, any benefit to this?
If the system is compatible, that's up to you. I do not find much value to it myself, but it could be useful for gathering pertinent data for settings, such as normal operating temperatures for settings, or actual fuel pressures, system voltages, etc, to make more accurate estimated first-run settings. Up to you for if that is worthwhile.