Ford EEC-V DPC Electronic Engine Control System
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| Basic Information | |
|---|---|
| Release Year | 1994 |
| Product Type | Automotive |
| In Production | No |
| Official Website | |
Overview[edit | edit source]
Starting in 1994 Ford branded light duty truck class vehicles equipped with 7.3L Powerstroke engines were fitted with Ford's in-house designed EEC-V engine management system. A special variant only found in 7.3L equipped vehicles called DPC, or Diesel Powertrain Control. These variants had completely different firmware, binary sizes, routines, and IO mappings as well as very different IO drivers. The EEC-V systems use propriety micro-controllers that appear to be iterations on the original Intel 8065-like processors used in the EEC-IV earlier models used until 1994. This is largely an assumption based on disassembly of the firmware binaries pulled off running vehicles. These modules are referred to as PCM, or Powertrain Control Modules as the single device runs the firmware routines for controlling many central parts of the vehicle including, engine, emissions, transmission, and communications to all other independent modules.
OBD II Support[edit | edit source]
Starting in 1996 all vehicles sold in the United States were required to be equipped with the OBD II communications and diagnostic protocol. Ford EEC-V vehicles were wired with a DLC (data link connector) but did not function with OBD II until 1996 when firmware updates were released to enable the communications. Most 1994 variants can run later (up to 1997) official firmware variants with the same hardware identifiers and achieve the upgrade. This means, as far as aftermarket reverse engineers have discovered, there are little to no known hardware differences between the devices sold in this such that later firmware can be run mostly without issue.
Consumer-impact summary[edit | edit source]
Ford , along with manufactures of most products in the United States, has naturally discontinued sale of OEM replacement parts for 1994-2003/4 vehicles. This includes the ability to purchase remanufactured PCMs. This means consumers with capable and running vehicles may not be able to acquire usable replacements in the event their PCM fails, which after 30 years can be a problem for many consumers. The difficulty with acquiring replacement devices is that many scrap re-sellers will intentionally remove the OEM identifiers on the modules or lie about the internal hardware variant to make a less compatible device more sell-able. The issue with this is that many consumers end up with incompatible hardware or issues installing replacement hardware into their vehicles. They may still run and drive but have issues with shift scheduling, firmness, engine power production, or worse incompatibilities with different models of emissions equipment like fuel injectors.
Other consumer rights issues appear in the modification of vehicles that a consumer owns. This falls into more of an EPA, regulation, and US law area than it does manufacturer. Automotive manufactures are under immense pressure from federal agencies like the EPA to meet regulatory guidelines in almost every area of vehicle manufacture. While this article does not intend to cover the specificity in government overreach on consumers or repair shops, it's important to mention articles like this may put authors, engineers, small businesses, repair shops, and even owners at risk of a federal prison sentence. Often charges of Conspiracy to Defraud the Federal Government, which is a felony up to 5 years in federal prison, for the act of (or conspiring to) modify engine components or control systems that have the potential to alter vehicle emissions. The Clean Air Act empowers the administrator and agency to act on these events.
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Incidents[edit | edit source]
This is a list of all consumer-protection incidents related to this product. Any incidents not mentioned here can be found in the Ford EEC-V DPC Electronic Engine Control System category.
Example incident one (date)[edit | edit source]
- Main article: link to the main CR Wiki article
Short summary of the incident (could be the same as the summary preceding the article).
Example incident two (date)[edit | edit source]
...
See also[edit | edit source]