![]() ![]() These fuses act as a firewall and prevents your Spade programmer to communicate to the ECM. Any aftermarket products that require a fuse should be unplugged before flashing your ECM. Anything that sends an electronic signal to the ECM can cause the issue. If your aftermarket radio has power going to it, expect to get an error code while flashing. This is the most common cause of flash failures. Let's go over a few tips to help make tuning your ride a smooth experience. Now that these trucks are coming up on that 20 years of being on the road, these ECMs were some of the first introduced into the Duramax. Before you being to think, 'oh boy, I missed up,' please know that it's not your fault, but there are a few things you can do to prevent it from possibly happening. The LB7 and LLY main culprit of crashing are user error. Flash your truck at home or a local garage.Make sure your batteries are at a full charge. ![]() To make sure you aren't stuck stranded somewhere far from home follow these tips: Browsing the forums online you definitely already picked up on the fact that the LB7 and LLY ECMs are more suscepitble to the issue. If you have a 2001 - 2004 (LB7) or 2004.5 - 2005 (LLY) Duramax and have been thinking about tuning it, this article is for you.Īs you're probably aware, ECMs have some small risk of crashing during a tuning flash. ![]()
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