mean:

PO 173 = Fuel Trim malfunction; bank 2

PO 300 = Random/Multiple Cylinder Misfire detected
PO 305 = cylinder #5
PO 306 = cylinder #6
PO 307 = cylinder #7
PO 308 = cylinder #8

PO 410 = Secondary AIR Injection System malfunction

The fuel-trim code could be a bad O2 sensor and/or MAF.

Misfires may associated with bad cables/igniters???

AIR could be a bad vacuum line???

__________________
Regards . . . . JimF
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'94 S500 Cpe

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