ok so iv searched and all i keep finding are conversion wiring.. but i have a 98 ek hatch with b16 and chasebays harness.. my temp guage went out yesterday so i changed the one pin temp switch to fix that and now my tach is going crazy. it will work like it should and then move around all crazy and then drop to 0.. then a few minutes later it will work like it should for a few and then go all crazy again..

i have checked for loose wiring in case i may have tugged on something. everything is tight on the distributor, the ecu, and the back of the cluster.. so im running out of ideas on what it could be..

thanks