Yeah... I guess you are right. I need to give time to the computer. I bought the Rover 6 months ago, but I never replaced the air filter it looked old then. When I got it we did a complete LR computer diagnosis, O2's, MAF, etc...The Rover did real well. I did an oil change, and had all the other oils checked, they looked good. Has a bit of the typical D2 oil leak on the passenger side rear valve rockers gasket, which I tighten when needed. About a month and half thats when the SES came on, we turned them off a few times same codes always 1174 & 446. On Wednesday I replaced the Air Filter just in case the 1174 was for a clogged Air Filter and the CVS for the 446 code. When we checked the codes today only one came up the 446 for CVS, maybe I'll give it a few days and see if it goes out.
Thanks again, Dave