[AndrewCologne]

Originally Posted by theiceman

below is the sensor i got.. not sure if link will work .. ( the price is for 10 but i got 1 )
https://www.aliexpress.com/item/1005008714559538.html?pdp_npi=4%40dis%21CAD%21C%24 %20701.38%21C%24%20701.38%21%21%21495.92%21495.92% 21%40212f0bc017484568756836778da600%21120000463605 90684%21sh%21CA%21860381941%21X&spm=a2g0o.store_pc_home.productList_9841707.100500 8714559538

1. (just a side note – I wouldn't trust any cheap Aliexpress Chinese stuff - that offer from Aliexpress above never ever comes with a genuine LSU sensor from BOSCH).
2. ALWAYS check for proper ground potential, means best is to lead the lambda/AFR controllers GND wire directly to the vehicles battery, same with the 12v wire, via Relay.
3. When using SSIs the lambda sensor at the position of SSIs factory welded bung is resulting colder as it gots more distance to the heads, so the readings at idle –where the exhaust flow is at coldest state– could be off / result different.
4. Some AFR/Lambda controllers give wrong results at Lambda 1. Innovate LC-2 at factory state i.E. does actually result in 2.55v at Lambda 1 and not at 2.45v. Several tests with different LC-2 controllers and different used LSU4.9 sensors proofed that.