The communication protocol, later revised to J2534-1, is a translator that allows a personal computer (PC) to communicate with the PCM on all makes, all models. The result is a universal communication protocol defined by SAE Recommended Practice J2534. Because EPA wants the aftermarket to be able to perform all types of emissions-related repairs and they cannot require shops to purchase specific brands of tools, they turned to the Society of Automotive Engineers (SAE) and the tool and equipment industry for an answer. Environmental Protection Agency (EPA), but they could only be installed with a manufacturer-specific tool. But by the time OBD II was introduced, most Powertrain Control Modules (PCMs) could be reprogrammed.Įmissions-related software updates were available to the aftermarket, as required by the U.S. At first, updates were accomplished by replacing a memory chip in the control unit or the control unit itself. When car manufacturers started using computers to operate engines, software updates became part of your job.

CUSTOM GROUND CAMSHAFTS AND CYLINDER HEADS ARE NOT ELIGIBLE FOR RETURN UNDER ANY CIRCUMSTANCE.J2534 lets you stop sending customers to the dealer for PCM updates. if parts arrive damaged or appear to have been installed). We reserve the right to make the final call on what is and is not eligible for return (i.e. We do not reimburse original shipping, and you are responsible for the return shipping. PCM programmingĪnd other products must be NEW, not removed from packaging or installed. You must contact us first before sending anything back. Products are accepted for return within 30 days of purchase date. By purchasing a tune from us you accept our return policy. With our experience, we can also help diagnose other problems which may be interfering with the tuning. Things you can do to help us make our tune better is to provide catalogs, scanner readings, dyno sheets, or just a really helpful description of the problem. We do however take great pride in our work and it is a pleasure to help you achieve an excellent running car. We are custom building programs specifically for your needs. It is similar to buying an Audio CD at your local music shop. Tuning: Due to the nature of our business we do not issue refunds.

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