RVRCTYLude

Is it possible to have 2 ECUs? I have a SH, and i want to chip/mod it. But since i have a SH i'll loose atts on most ECU mods etc.. So what if i had my stock ECU, and a OBD1 ECU set up on a relay with a toggle switch or something? Is this possible or even practical?

Shimee

This will answer your question: what OBD version is your current distributor?

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rpwolf

SH models have one ECU and one ATTS control unit. Cant change ecu's, cant chip stock ecu, cant convert to obd anything...emanage ultimate would be one of the better choices for tuning, thats if you want to keep the ATTS.

otherwise disconnect the ATTS control unit and and go about your tuning business as though it never existed. Search around the forums and you will find how people remove the ATTS completely.