Re: VTEC-E question, help!
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Re: VTEC-E question, help!
Close but no cigar. It's not DBW that makes WOT happen without open loop, it's wideband O2. WOT doesn't even require open loop, but common programming assumes (quite correctly) that when most people floor the pedal they want maximum power at the expense of fuel economy. It could be programmed out if you don't mind sacrificing a few HP.
However, with DBW you will often get WOT even though you haven't floored the accelerator pedal. That WOT does NOT include open loop even if you don't have a wideband O2...but flooring it will still put you in open loop unless wideband-equipped. |
Re: VTEC-E question, help!
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Re: VTEC-E question, help!
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Wideband O2 sensors are much more common now than they used to be. The correlation you've noticed with closed loop WOT and DBW is probably just because DBW also became common. Your 2004 Volvo S60 Turbo's upstream O2 sensor is wideband, according to Oreilly Auto Parts: https://www.oreillyauto.com/site/c/de...2205&ppt=C0018 My 2008 VW Rabbit was also equipped with wideband O2 and DBW throttle. Can you suggest why DBW vs. cable throttle would make a difference? |
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