I got a 2nd dui this month in san diego is it possible to get a restricted license after 90 days under SB598?

Yes. After 90 days of the suspension period you should be able to apply for a restricted license provided you install an ignition interlock device, pay all administrative and reissuance fees, and are enrolled in the 18 month Multiple Conviction Program, et al.

Yes you will be eligible. You will also want to have an attorney represent you for your second DUI as a private attorney can usually dramatically reduce the offer you would receive if you appeared without an attorney. Robert Driessen

Interesting question because of the fact you are on probation there are additional consequences but do not appear to inhibit your ability to get a restricted license. However, you may be facing additional jail time becasue of this probation violation.