O2 sensors with Power Comander V
#21
As mentioned before, the stock O2 sensors make only very small changes to AFRs and only in part-throttle conditions, mostly to meet strict EPA requirements. Even if they were a moderate player in adjusting for altitude they couldn't adjust very much and couldn't make any changes above about 50% TP. Most of the adjustments made for altitude originate with the MAP sensor, not the O2 sensors.
What baggage is it's a piggyback unit so you still have the ECM. That creates points of failure not otherwise present. It's a fine product, a quality product. You aren't a fool for using one by any means, but you are blind if you cannot see it has it's disadvantages.
They have room for improvement. Since they are piggybacking off the ECM they could read the calibration off the ECM. I believe the TTS unit does.
People do have problems with failures of the connectors and the product itself.
They could make a more robust product. Who would complain about the same product at the same price failing less often. That isn't saying they fail so often they are piece of crap, but they do fail and as such they could fail less often. This not your God, this is a piece of electronics plugged into your bike.
I love my harley but, sometimes, I have to wonder just wtf they were thinking. I would love it if they built and all out dragster to go with the V-Rod. Turn? Why would you want to do that? Both on the bike I have and their product lineup there's room for improvement. They have yet to acheive everlasting perfection. Niether has DynoJet or any other company I know of.
Last edited by iclick; 07-21-2010 at 01:15 PM.
#22
I am not 100% positive on the newer PC, but the past versions only received the signal from the ECM and modified it and sent it forward. This was done at run time of the bike each and every time. There was not two way communication. This is why the PC is preferred by some as it does not leave a footprint behind.
The TTS, SERT and SESPT rewrite the tables on the ECM. This is the main difference between the two products.
The TTS, SERT and SESPT rewrite the tables on the ECM. This is the main difference between the two products.
I'm not bad-mouthing other products by saying this, but am merely stating facts. If I had TTS, SEST, or SERT I would keep it and make the best use of it. I decided to go another direction and am doing the same, which is maximizing that tuners capability. IMO you can get an optimal tune with any of these products, but they just work in different ways and have different feature sets. Which is best for me isn't necessarily best for the next guy.
Last edited by iclick; 07-21-2010 at 01:24 PM.
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