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2nd Gen Ram Tech1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
Any place that it will still work. It really is only effective in open loop anyway. Once the engine goes closed loop, O2 sensors have much more of an impact.
Any place that it will still work. It really is only effective in open loop anyway. Once the engine goes closed loop, O2 sensors have much more of an impact.
what is the open/closed loop you're referencing to? I've heard the term alot but neve really been able to understand what it means.
Yeah, essentially what Moparite said. Newer cars/trucks get into closed loop faster due to heated O2 sensors, etc. But, basically, in open loop, the PCM runs the engine based on data programmed into it, in closed loop, the PCM pays attention to the O2 sensors to monitor fuel mixture, and correct as necessary.