any recommendations for how to get in to replace Bank 1 Sensor 1 back there near the firewall...
have read all postings on 02 sensors, EGR problems on the forum. Have had similar issue: error codes of faulty EGR DPFE, insufficient switching control valve/lean. Tuned up, replaced DPFE. CEL off for a while, now back on. Replaced Bank 1 sensor 2 (easy one). Think I need to replace bank 1 sensor 1 and clean EGR passages. thoughts?
many thanks
matt
98 SE 5-spd, 93k
