As mentioned on my Yellow Peril thread, I'm having an issue with the PCV unit using converted PCIII maps. The same (unconverted) map works fine using a PCIII, but as soon as I swap in the PCV using the converted map, the engine stumbles from about 5,500rpm on up. It is true that I don't need to use the PCV, but I want to mainly because I have an Autotune and an LCD display that work only with it. More gadgets are, of course, essential!
The base map I'm using was modified by Dan at A&A for the supercharger kit, but he only made it for the PCIII, so I've converted it to PCV format using the PCV software (which appears to average the 10% and 20% throttle position columns in order to populate the PCV-only 15% column). I think this is exactly what Dan did when he made the PCV-format maps for the 6th-gen kits, so the same technique should work on my PCV as well. I have not printed out and visually compared the converted and unconverted maps, but it's on my list of things to try.
Unfortunately, my experience with FI and Power Commanders is very limited, so I am not sure where to start to solve this puzzling problem. The PCV also uses speedo and temperature inputs (and the PCIII doesn't), so I've been looking at that difference, but I have no idea if I'm on the right track or not. Are there other differences that would make a converted PCIII map not work? Any ideas? TIA.
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JZH
As mentioned on my Yellow Peril thread, I'm having an issue with the PCV unit using converted PCIII maps. The same (unconverted) map works fine using a PCIII, but as soon as I swap in the PCV using the converted map, the engine stumbles from about 5,500rpm on up. It is true that I don't need to use the PCV, but I want to mainly because I have an Autotune and an LCD display that work only with it. More gadgets are, of course, essential!
The base map I'm using was modified by Dan at A&A for the supercharger kit, but he only made it for the PCIII, so I've converted it to PCV format using the PCV software (which appears to average the 10% and 20% throttle position columns in order to populate the PCV-only 15% column). I think this is exactly what Dan did when he made the PCV-format maps for the 6th-gen kits, so the same technique should work on my PCV as well. I have not printed out and visually compared the converted and unconverted maps, but it's on my list of things to try.
Unfortunately, my experience with FI and Power Commanders is very limited, so I am not sure where to start to solve this puzzling problem. The PCV also uses speedo and temperature inputs (and the PCIII doesn't), so I've been looking at that difference, but I have no idea if I'm on the right track or not. Are there other differences that would make a converted PCIII map not work? Any ideas? TIA.
Cheers,
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