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Handheld won't connect to ecu
#1 · April 19, 2025, 11:56 am
I disconnected the ECU connector so I could examine the wires to the coils and injectors. I put the connector back in and turned the power on. The handheld won't connect to the ECU anymore. Power does come on. Any ideas what happened? All the connectors are connected. Which pins on the ECU connector are for the handheld wires?
#2 · April 22, 2025, 10:13 am
Good chance you lost your ECU. I lost mine last summer - one day - car would not start. Call FITech to troubleshoot.
I guess this is a "thing" - especially with older units. I bought a replacement ECU from Jegs & self installed.
Werner Bartels