Ecumaster forum

I don't know why Karel keeps having his head up his ass with all his useless comments. I am just reporting a possible bug I have discovered. There's no need to be hostile.....................

It's too sensitive would be a better choice of word I suppose............ "Too sensitive" ??? Are you joking? So you would prefer knock detection system that is inacurate, slow, and deaf as a post ? :D I think is talking about the fact that even at 1.92v engine noise is set and 0.80v of sensor valu...

It's too sensitive would be a better choice of word I suppose............

The check engine light for knock output is not accurate. it's been coming on even the knock sensor value is below the engine noise threshold.

It turns out that adjusting the gain will change the check engine light sensitive and using the 2nd harmonic on the frequency help filter out a lot of engine noises. It now just triggers the engine check light when at wot low rpm in 5th which I would say it's legitimate. Hopefully it will help other...

Thanks for the reply. I have checked my wiring yesterday to verify everything wired up correctly. Everything is wired up as described in the manual with signal going into knock input, ground going into sensor ground pin at the ecu and everything has been shielded at grounded at one end. Maybe my sen...

It turns out that the check engine light will trigger whenever there's voltage spike regardless of the voltage or the engine noise threshold. Can someone tell me what's a real pinging/knocking in voltage should look like? I am picking up voltage spike around 1.2v that would trigger the check engine ...

I am using a shielded wire for the knock sensor as instructed in the manual. I will try dialing my timing back at that area from 15 to 12 to see if it helps.

Here is a graph when the check engine light came on. I thought it was knock at first but the knock sensor input is saying otherwise. I am still working on the ve map that's why the lambda is off.

I have set the check engine light output when knocking is detected. It has been coming on even the knock sensor value doesn't exceed the engine noise level. is there anyway to adjust the sensitivity on the light output. the engine was not knocking according to the datalog. Thanks.