LMAO Welcome to the strange world of the Achieva !!!! My 97 does the same, except for the fact that now that it has actted this way for a couple of year, the warm weather isn't a 100% promise it will always work...wait till some of the other gauges take awhile to start working...IMHO it all is part of the many weird problems I see people having with the ICP.. ...lmao