I'm fairly certain there should be a way to disable the AIR pump codes in the PCM tune with appropriate tuning software (JET Dynamic Spectrum Tuner for a '97) but I'm also fairly certain that any competent/larger tuning business will be reluctant to do so with all the new EPA regulations. You could check with a mail order tuner like Black Bear Performance and see if they'll do it, but I kind of doubt they will any more. This may be something that will require you to buy JET DST and figure out yourself. Which shouldn't be terribly difficult worst case, we have several members here who have experience with JET DST. I have it myself but neither of my '97s are equipped with an AIR pump so I'm really not sure what to look for in the tunes.