Remap Jimny ecu

Tony M16a wrote: My understanding is that if the 1.6 injectors are used with the 1.3 ECU for a 1.6 conversion the extra fuel delivered will equal out to to engine demands and the ECU will compensate. OK not high tech remapping but seems to work ok.

tim_jimny53 wrote: Ok cheers was just a thought as I may kno somebody that does it and could maybe get a discount , got the 1.3 16v dohc it's pretty good as it is

Rhinoman wrote:

oilypirate wrote: surly if the 1.3 ecu is running a 1.6 engine your down on fuel for a start?

The ECU will adapt to some extent but the real problem is that the torque curve is different and that is what the fuelling is based on so the ECU will be continuously trying to adapt. When you put your foot down from low RPM the fuelling will be wrong at the top end. How much you are likely to gain is anyone's guess, as far as I know no-one has ever had one on a dyno. I did a fair bit of work on the G13BB ECU a few years back, when I get my pick-up back on the road I'll run it on the dyno and see how it works out. I plan on fitting an M16 to my 2006 Jimny next year, there should be good gains from that because the VVT will need to remapped to get rid of the big dip in the mid-range.