LT5 swap into 89MY L98?

[-=Jeff=-]

Originally Posted by RHanselman

I was following until the above... Looks like you are saying in the first sentence that the CCM controls the LCD and then in the second you are saying the LCD is handled (controlled) by the ECM??

What am I missing?

you caught a typo.. ( thanks)

it should read:

the CCM controlled the LCD on the cluster. so any function of that LCD on 90-96 was handled by the CCM Not the ECM

[RHanselman]

Originally Posted by -=Jeff=-

you caught a typo.. ( thanks)

it should read:

the CCM controlled the LCD on the cluster. so any function of that LCD on 90-96 was handled by the CCM Not the ECM

So the ECM feeds parts of the CCM and the CCM controls the LCD?

[-=Jeff=-]

Originally Posted by RHanselman

So the ECM feeds parts of the CCM and the CCM controls the LCD?

Yes..

The CCM gets data from the ECM for the sensor display on the LCD panel (92-95). The fuel gauge also goes directly to the CCM then to the LCD

in the 89, I think he could use the 90 ECM and not have too many issues.. the only thing that would not work would be Fuel mileage, but I know that the code for the Instant fuel etc can be modded in the 1990 BIN to work with the older dash, I know someone who has done it, so if he got the LT5 running int he 89 and everything else functioning then the BIN could be changed to show the fuel calcs as well