Tech Help

The Petris Optispark, built by Throwback Automotive, is not a rebranded distributor—it’s a high-quality, precision-assembled solution perfected over three decades. In this post, we break down common Optispark failure points and explain what sets ours apart.

How do you know the Optispark is failing? Let’s envision you are out in city traffic. As heat builds under the hood you first notice a minor misfire, then stalling occurs. You are most likely able to start the engine back up, but as time goes by the wait time increases before the engine will start. Eventually the engine will run when it is cool but as soon as heat builds it dies and refuses to start no matter what the engine temperature is. Before you rush to replace a component, be advised that the 1992-1993 ECM (Engine Control Module)...