Gwyn, Thanks for that,but all codes have cleared and not returned except for the 02' sensor code. Car starts and runs ,but after warmup no power, then mil light on and hardly any go above 3000 rpm (limp home?) Looking at this when mil light comes on it shows perm .4v at 02 sensor (no switching),will carry on tomorrow. I think the 3 other codes were just previously uncleared ones. Thanks Colin.