I've raised this same issue a couple of times, but there's a hard core of resistance here to new technology. Some members follow the 1970s method of trying to decode blinking lights, but this is a total dead-end with new EFI machines. The only way to diagnose these machines is to use the proper diagnostic tools. Every dealer has the diagnostics device and knows how to use it, but if you don't have a local dealer, there's no answer - except for trying to count the blinking light pattern. Let me share a story with you: About 30 years ago I had an old Chevy van with a CEL that would give one long blink followed by 2 short blinks. Or it was the other way round. This indicated either "12" - or "21". I asked the GM dealer what was it trying to say. He said "12" meant the throttle-body fuel injection needed replacement, and a "21" meant the ABS system needed repair. The van otherwise ran fine. I asked how do I know which message it's trying to tell me. He said,"First you replace the fuel injectors. If the light is still blinking, it's a "21", not a "12", and you need to replace the ABS system. It's like flipping a coin. In the end, I put a piece of black electrical tape over the blinking light and drove it for another 100,000km. It was still blinking when I sold it years later.
The take-away: Don't buy an EFI machine unless you have access to the diagnostic tools, either your own or the dealer's - it doesn't matter which. Without the tools you'll never figure out what it's trying to tell you!
