Here is my small problem...
my S2 has hearts and diamond ECU. My loom has the green plug for knock sensor. The problem is that my inlet hasn't knock sensor......
I need toi fit a chipped ecu, so because i want my car run propertly and i can't find a chipped without knock sensing i wondered if i can just fit a chipped ecu from a 90 spec S2, and just plug a knock sensor into the loom and nothing else..

 

Yes, wrap the knock sensor in some rag and tuck it out the way.

 

thanks Karlos! All the chipped ecus on ebay from late S2 with knock sensing...Three months i'm loooking there i found only one from early S2 and i loose it..

 

So if someone has a spare knock sensor and paypal account let me know it....

 

up, and also can i use a Rs 1 ecu in my s2? The only difference is the knock sensor?

 

Yes you can use a S1 ECU in a S2.

 

i plug a knock sensor today! I think the is going much better after 3500-4000 rpm. Can be true??