Quote:
Originally Posted by Ecky
Unfortunately, most ECUs do not monitor the injectors (none that I'm aware of, in fact) - they're simply two wire outputs, with constant 12v and the ECU provides a controlled ground. There is no mechanism to detect a clogged injector, other than a lean state as seen by the O2 sensor. I'm curious which ECUs you've seen this work with.
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Sorry Ecky, I could not disagree more. I have seen this limitation by the ECU on every late model vehicle I have tuned. No MPG gains unless the signals that ECU monitors is tuned. It makes so much sense now that injectors need to be tuned as well. Thanks MPGmike!!