My temperature Guage is not working on my 88 crx si. It moves around at random and pauses at places for a while and then moves again. i grounded the green and yellow wire for the temperature guage and it moved a little but did not go all the way to one side. It is also causing a chech engine light. I was wondering if anyone had any insight. My guess is that the guage is bad. What clusters would work? The si cluster is hard to find. My main concern is to fix the check engine light to get it smogged. i plan to do a swap later, but i need to drive it now and my temporary sticker is up.