Scanned the car last night. Came back with both 02 banks.. as well as two other codes...

P0036 ECM detected less than 40 high resolution timing pulses between each low resolution pulse for 5 consecutive cycles.

P0042

PCM did not detect any EST signal within 84 crankshaft revolutions.

any ideas?

could be displayed as just codes 36 and 42... my buddy put the P00 in front of it.

 

bmp

 

Code 36 is related to the feed back signals of the Opti. Either a faulty High resolution signal or an extra low resolution signal.

Code 42 is a faulty IC signal which fires the coil. The common denominator to both of these problems is the opti. However taking into consideration that you mentioned you had O2 faults, these seemingly unrelated problems could have something else in common. A faulty alternator can cause many codes to randomly appear do to too much alternating current. An alternator allowing too much AC on the supply line can cause the PCM to go nuts.

As little as .03VAC on the DC supply line is too much. It's worth an easy test with the multimeter that takes 2 minutes. Put the meter on AC and put the negative lead on the ground post of the battery and the positive lead right on the supply pin of the alternator. If you measure 0.03 VAC or higher, the alternator is bad and may, I say may be causing faults to appear.

That being said however, chances are good your opti is bad. Do the test on the alternator and remove it from the equation. Then focus on testing the opti.