S1 Fuel Pump Relay
 

I did a quick search but didn't find anything. But can you use S2 Relay in an S1? I know the obvious difference but they essentially do same thing. But there is 1 wire extra, what is that for? Cheers

In terms on plugging it in and it working - NO.

It is possible, but you have to re-arrenge the pins in the plug and also get a new source as the 2 relays operate from different signals.

But above all...................WHY???????????

A Series 1 relay wanks all over a Series 2 item, i wouldnt replace a S1 relay for an S2 item if someone paid me..........