I installed a new Spartan Lite 3, and it worked wonderfully for two drives, now when turning it on it reads 16.5 for about 5 secs then goes to 19.9 and stays there. Nothing has changed since installation.
Any ideas?
Thanks
Ok no help so far, but I was assuming a dirty sensor as when it worked for the first two days it was reading rich. I took the sensor out today and it was covered in black filth. So gave it a quick rinse in petrol, nothing more than a swish around and wipe with a soft cloth. There are holes in the tip of it that must get caked up I guess. RE-installed and now after initially jumping around in the high ‘teens’ it sits on 16.6.
So the plan is to now take it out and let it soak in petrol for a while and a blast of compressed air. We’ll see how it goes after that. P.S. I have leaned off the mixture a tad too.
Well an update for whomever cares, not 14point7 as only crickets from the manufacturer or distributor…
Soaking the sensor made no difference, other sites have reviews of sensors just dying, maybe the O2 sensor (Bosch) has packed it in, but they’re not cheap to replace to test… thanks for wasting my money, will have to try a complete different setup and put this experience down to…well experience I guess.
Hi,
Can you send me an email or private message with your order number?
Hi. My order number was #10834
Kev
I’m having the same issue.
Same issue with spartan 2 wideband controller.
same iussue. What was the cause?
Toalan,
Can’t figure out how to message you directly. I purchased a Spartan 2 w/ LSU 4.9 back in 2020 (inv 5734) installed it and parked the program for 4 years. Its installed in a bmw k100 muffler where the 4 pipes come together. I have check and no air leaks on the header pipes or muffler. It may start at a lower number but jumps to 19.9 and stays there. It does get hot but the LED stays at a slow blink. The tail pipe is building up carbon, because the microsquirt is adjusting the fuel. Not sure what to do next to resolve the problem.
Thanks,
Todd
Sorry did the troubleshooting. Open air 19.9. With a lighter it would jump to 14 or so when i stopped the gas flow and go right back to 19.9. As long as the light was flowing gas it stays at 19.9. It was to hot to touch but the LED continued to slow blink.
Thanks,
Todd
Hi,
I checked the white wire is on chassis ground compared to the ground for the microsquirt. Also during start up I do get the 13 reading then 17 and then it goes to the 19.9 reading. I measured and in 26" from the head, where the individual pipe are combined. About 6" after the combining of the individual header pipes.
Thanks
If you are getting the right startup voltages the issue is likely not with the controller but the sensor. I would try a new sensor.