Chip tuned for MAFT, can I use without MAFT

90 GSX · 10-30-2004, 11:11 AM

I bought an ECU with a keydiver chip. It is tuned for 550's and MAFT. Is my MAF going to be thrown off? I am assuming that as long as the MAFT is not adjusted it will behave like a stock car but I'm not exactly sure.

LAUNCHED · 10-30-2004, 12:35 PM

It should be fine, 550s are just a little above stock. Now if you were using 850s or something bigger you would need to calibrate your MAFT to compensate for the larger injectors as well as the ECU compensation.

CRAIG

LAUNCHED · 10-30-2004, 12:36 PM

To add to that, I would just zero out your MAFT and go from there, you should not need to any adjustment on the MAFT.

CRAIG

90 GSX · 10-30-2004, 10:57 PM

I contacted Jeff at keydiver and he answered my questions. The MAFT and the 1g mas can act the same way... if I had a MAFT it would have to be zeroed out for it to work correctly. Also, I bought the 550 chip and then later I got 550 injectors to match it.

xEM1x · 10-31-2004, 10:43 AM

So if i get a chip tuned for 660 injectors, will it work with the 550's im using now?