over-bored MAF calibration

JMSMAUTOMOTIVE at cs.com JMSMAUTOMOTIVE at cs.com
Tue Mar 5 08:55:09 GMT 2002


your problem is indeed a lean out situation, there is now more air going 
through the sensor but the computer doen't know it. suzuki is kind of an 
odd-ball for performance mods, so you may not have much luck getting the 
computer re-maped (try superchips.com) or for the maf try pro-m.com  .but it 
seems to me the simplest thing to do would be to get an aftermarket 
adjustable fuel presure regulator. the maf is flowing more air, but the 
output volts vs flow curve should still be close to stock, just more air. if 
you up the fuel presure it will give it moe fuel per duty cycle, to balance 
the added air. you can monitor the o2 signal to hone in on how much more fuel 
presure you need. good luck, joe

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