1G Swapping my California ECU with a Federal ECU

[FrostBite]

Same year same make and model, same everything-except my old ECU was ca and i want to get a federal one. I have heard that the only difference between the two is a resistor for the EGR valve between 129 and 130. I have heard that it doesn't matter in the 1990 if its there or if it isn't. I have also read some posts saying you cant do it unless you cut out the resistor. I was just hoping for some clarification on if I put a federal ECU in place of my ca ECU if i will need to cut out the resistor.

 

[neILLDSM]

Yeah! I also wanna know about this, im in the same predicament..

 

[98eclipseRS]

just plug it in no problems what so ever, I did it on my car since my ecu went bad. Bought a fed ecu pluged it in started it up no problems what so ever no modding needed.

 

[steve]

You should be fine using a Federal ECU.

It's when people with '90s want to use a California ECU in a Federal car or after disabling the EGR on a California car that they have problems.

The '90 ECUs, because there is different code for CA and Fed, don't seem to respond to the resistors like the later ECUs do.

Steve

 

[99gst_racer]

CA cars cant pass emissions testing with a Federal ECU, right?

 

[98eclipseRS]

CA cars cant pass emissions testing with a Federal ECU, right?

they can pass emmisions