2000 v70xc ecm 4801 & 6806 but no cel

[mrscullini]

have 205k on the clock.

battling both a 4801 and 6806. for the 6806 tested the tcv, it seems to be operating correctly, removed, checked re-installed all vac lines, no vac leaks. after this, the car seems to be running better. i seem to have more boost.

for the 4801, i've cleaned the maf tried the lacquer thinner trick, no vac leaks. really that's it.

after clearing the codes no cel. but, when scanning, it is returning these codes without throwing the cel. why is this?

as mentioned above, the car is running better and my mileage has improved.