Need help, i think it is an electrical problem. Well when my car is cold, and a cost in gear, my temp gauge and aftermarket tach goes crazy. They like flutter up and down. Also my engine light will glow on and off, but usually is off when driving. The car runs perfectly fine, its just that it drives me crazy when everything is fluttering. I checket my grounds, any one else have this problem? This is swap related cause I got a B16a 2nd gen in a 91 Civic Ex.