DIYEFI.org Forum

Fred, It is so obvious that you judge people by whether they can speak good English. But there are majority of people in the world don't speak English. Bosch Engineers at Germany invented the LSU sensors, which you have to use. They do not necessarily speak good English. You EDIT member's post at yo...

My turn! More professional tuners use the linearized analog output from the wideband controller as the feedback signal to the ECU, to control the AFR instantly . Not possible. You clearly have no idea about engine control or even control loops in general. With the calibre of people on this forum, I...

How do you know that innovate was not showing the correct AFR and your unit was during fast AFR transition? You do not know because you do not know the actual AFR of the gas when you ghetto weld bungs to an engine. TRUE, I don't know the absolute AFR or lambda of the exhaust gas out of engine. I sa...

For this reason , almost all wide-bands are really only useful for measuring steady-state AFR. i.e. constant speed / constant load. This is so important to a wideband controller, that I want to say some more: The only way to determine whether a wideband controller is good or bad is to see whether i...

In order to create the best value, you need to do your homework and develop a lambda controller from scratch. This is called re-invent the wheel. You are just relying on the bosch IC to do the critical work of controlling the sensor, then adding on a microcontroller to communicate via SPI with the ...

If there is a pipe length delay issue, why do the traces start at the same point, but reach a result at another point? I would agree the above posts are missing some massive amounts of data. If you have equipment and such, perhaps you could fill in those gaps by posting a youtube, pictures, or simi...

I have done this with my own stuff and other controllers as well. I did not bother to refine my testing jig, as I am quite convinced that regardless of controller design the bosch lambda sensor is not capable of resolving individual cylinder AFR at the collector, that is the holy grail. With that o...

Works for me! PMing you your new password. Fred. Thanks! with the new password "ecotrons" account works now. Is it possible to merge "Harry193" into "ecotrons" account? If yes, please also merge the "diyhansen" into "ecotrons". if that is still poss...

Works for me! PMing you your new password. Fred.

Somehow it has been difficult for me to login and post on this forum. Don't know why. Anyway, in case I can post this time, here is our result of the comparison between ALM and LC-1: ALM beats LC-1 easily in accuracy and response time, though LC-1 is faster than LM-2. LC-1 is very noisy at "ins...