having tach problems need help! Options

[JRB8]

wuts up, i just installed new custom gauges from speed hut and ever since i put them in my tach sticks. for example when i idle the needle sticks at 2k, also when i go to run all the way through 1st it will stick again at 3k jump to 5k stick there and wont come back down the guage faces are all the way on so the needle hitting that is out of the question. but im guessing there is a wire loose somewhere or a plug but im not shure so ne help would really be appreciated