86 Corvette Ecm Wiring Diagram. Now the pin letters may not be exactly the same as this diagram. Assortment of c4 corvette wiring diagram.
Use stock MAP sensor or use the MaxxECU built-in. Early Corvette amenities were becoming standa. All done and hooked to new 165 ECM August 29 1999 ZIF Socket Extension All Done 30-pin Ribbon Cable wired to project board w 28-pin ZIF socket installed.
Blue wires are toggled to ground via the ECM.
Feeds relay connector E on all three relays as shown in the 86 ECM wiring MAF diagram from B1 and C16 on ECM. The best place to tap into. Uses external and included Bosch LSU 42 wide band sensors. Use stock MAP sensor or use the MaxxECU built-in.