2000 C280 with 63m. I have been getting an intermittent CEL that is now on all the time. Error code is P0170 and P0173. Is no power at 4000RPM and WOT a definitive indication that the AMM is kaput? Power seems fine at 4000 rpm and hard acceleration. Tried a spritz of CRC sensor cleaner but light comes back on within 20 miles. Just had a previous code P0150 and changed left front o2 sensor. Just changed plugs and wires to cure a rough idle. And I am due for a fuel filter change.

glenmore
2000 C280
1991 300CE
1990 LS400