Can a 1998 PCM control a 4L80E?

Here is what the documentation says. Each point links to its source; details depend on your exact computer, harness and transmission.

Computer and tune

• 0411 / P01; LS1, LS6, LR4, LM7, LQ4, LQ9; 2001-2003: The 2001 PCM, service code 12200411 (the '0411'), uses a faster Motorola 68000 with reorganized internal memory, was used unchanged through 2002 and again for 2003 Corvettes, and added advanced spark-control modifiers based on ECT, IAT, and AFR. (GM High-Tech Performance / MotorTrend)

Transmission control

• One conversion guide asserts that a 1998 PCM will not control a 4L80E; this claim is single-source and should be checked against the specific 1998 PCM family before relying on it. (Uploads)

Confirm against the instructions for your exact parts before wiring. More: Computer and tune in our tuning guide.