PCM GT-40 Marine Engine ECU Replacement

The PCM (Pleasure Craft Marine) GT40 marine engine, famed for powering the CorrectCraft Nautique, was a popular choice in high-performance ski boats throughout the 1990s and early 2000s. This robust engine relied on the EFI-MA39 ECU, which is integral to managing the engine’s electronic fuel injection system. Unfortunately, as time passed, these ECUs became notorious for failures, and with the EFI-MA39 being discontinued, many boat owners found themselves without a replacement option.

At T.I. Performance, we offer a solution for this common issue by using our J3 Chip to re-purpose any EFI-MA39 PCM commonly found in the Ford Mustang or Pinto. Our re-programmable chip can be installed into any EFI-MA39 ECU, regardless of whether it has the E230, E290, or 300M catch code. The J3 Chip ensures your GT40 engine operates smoothly in your CorrectCraft Nautique, making it a reliable and cost-effective solution. We can also offer a performance tuning option for these marine engines, allowing modified camshafts to be fitted and ignition timing maps to be updated for modern fuels.

By using our J3 Chip, you avoid the headache of sourcing a rare and expensive replacement ECU. Instead, you can use any D1L1 or C1A1 2.3 Turbo ECU and use our Stage 1 J3 Chip to load the correct GT40 calibration, optionally customising the performance of your GT40 engine to meet your specific marine application needs. Whether you’re cruising, sking, or racing, our J3 Chip provides the flexibility and reliability that boat owners require.

In addition to the J3 Chip, T.I. Performance offers a range of other products and services for the GT40 marine engine, sand can ship them anywhere in the world. Our expertise in custom tuning and performance upgrades ensures that you have everything you need to keep your CorrectCraft Nautique performing at its best.

Read more about our J3 Chips and Tuning, or contact us today to learn more about how we can support your marine engine needs.