JB9 Posted April 23 Report Share Posted April 23 I've been looking into setting up knock control on my MR2, but figured that this must have been done many times before, so.. Could anyone recommend decent settings for use with the stock Toyota knock sensor setup? (Not just the filter setting, but a generic starting point for the rest as well, I mean). Not sure if I'm worthless at searching, or if people aren't using knock control with the stock sensor. The suggested filter settings table says something like "3SGTE with aftermarket Bosch sensor". Quote Link to comment Share on other sites More sharing options...
INSW20 Posted April 23 Report Share Posted April 23 I tried running my 3sgte and another 3sgte on the stock sensor and it saturates the input (aka knock control becomes useless after a certain rpm and MAP). Swap to a Bosch donut for more reliable and useful knock signal. http://www.bmotorsports.com/shop/product_info.php/xrf/gshp/products_id/4518?gad_source=1&gclid=CjwKCAjwuJ2xBhA3EiwAMVjkVNdLZLrzikQx3wQzBTUnt02IC3R80bi5IamVGhI2KTR8Z4DgRlankRoC5_4QAvD_BwE I wired it to the single knock signal wire and then to the stud for ground. Maybe not perfect, but seems to read well, and consistent. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 23 Report Share Posted April 23 Agree with INSW20, the stock sensor is not suitable, I assume the Toyota ECU must have a much lower impedance input or some other form of attenuation to bring it down to a usable voltage. Quote Link to comment Share on other sites More sharing options...
JB9 Posted April 26 Author Report Share Posted April 26 Ok, great. thanks guys! Will get a sensor and see if I can adapt the OE wiring without having to cut off the OE connector from the harness. I wonder what the corresponding plug for the Toyota connector would be... Also: Any pointers for a starting point on the other settings (window length, gain, etc) for these engines with that sensor? Quote Link to comment Share on other sites More sharing options...
INSW20 Posted April 26 Report Share Posted April 26 This seems to work decently well on my 5sgte. I am running a coil-on-plug setup, which is how I have individual trims and gains on a g4+. JB9 1 Quote Link to comment Share on other sites More sharing options...
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