It's important to note that the existence of both these DTCs indicates a problem affecting both banks.
First to look for are any leak were intake air can get into the engine without going through the MAF. Obviously, this can be vacuum leaks, but it also could be a leak between the TB and the MAF.
Unlikely this is lazy O2Ses as 1) it would be highly unusual for both sensors to fail the same way and 2) if there was a lazy sensor, it would set DTC P0154 or P0160 which are the two codes for insufficient activity codes from Bank 1 or Bank 2.
Again, check for vacuum or air leaks anywhere behind the MAF. Check for any exhaust leaks near the O2Ses.
Once you check for leaks and don't find any, you need to do all the steps in the "Fuel System Diagnosis" in Book 1, page 6-313 of the FSM.
One solution to these codes is a faulty fuel pump. A more likely solution is a new fuel filter. There are numerous other solutions, too, such as faulty injectors, restricted fuel pipes, faulty fuel tank pickup, bad FPR or fuel pulse damper.
Unfortunately, the 1996 FSM is out of print. You'll have to look on eBay or a place like Faxon Automotive Literature which has used
'96 FSMs for 130-140 bucks.
