LS1 wiring harness help needed
Find a 98 harness + PCM and everything will mate up
Or use a 0411 PCM + 99-02 ls1 harness - if you choose this route all you have to do is change the coolant temp sensor on the driverside head to the 99-02 version since the 98's used a 3 wire...
And depending if you get a 01-02 engine harness they won't have the connectors for the EGR/AIR assembly since it was deleted starting in 01
But now would be the time to delete and cap off the EGR hole on the intake anyway..



