sooooooooo.. the tach doesnt work on my ef si cluster that i swapped into my ef sedan earlier today. not sure why.. was wondering if someone would mind helping me out and telling me what could be wrong. cause i was told it was plug and play but obviously didnt work for me. lol

 

It is plug and play but the 88-89 cluster and the 90-91 cluster are different so you have to get one of the right year. But then again teh Tach could be just burnt out. The first SI cluster i got the tach was burnt out in it so i had to get another one but if you get it from a matching year car it is all plug and play.

 

Ohh alright. Yea im assuming that the tach is just burnt out thwn cause its a 90 cluster and my cars a 91 and the tachs the only thing not working so its gotta be. Lol. Thanks for you help its much appreciated!!

 

Do you know what the blue plug is for i forgot to include that. Cause my car doesnt have that plug. Could that possibly be the problem as well?