My cluster is all jacked up on my 89 Honda CRX DX. I came across a low mileage and clean 88 CRX Si gauge cluster and thought it would bolt right on. However when I tried putting the Si cluster on, I noticed that it's slightly different. Any ideas? Thanks for your help.

 

88-89's should be the same.
90-91's are completely different.

 

The two main plugs plug-in perfect. However, there is a blue plug on my harness that needs to be connected. I guess it controls the accessory bulbs (check engine light, oil pressure, etc). The 88 CRX Si gauge cluster (as pictured below) does not have the box with this connection.

I started my car and noticed that the tachometer and speedometer work fine. However, the fuel, temperature, and all critical function lights on the cluster don't work. What can I do at this point? How can I make everything work?

 

I got a 89 Civic Sedan LX Cluster if you like (with TACH) I pulled it off to install a GSR.

 

Anyone know?