It's an automatic, so no decel valve 4 me I think that only helps burn up the extra gas for emissions though?Amskeptic wrote:How about a functional decel valve?dittrich wrote:makes me wish I had a lambda loop ECU...you can see how rich it goes as you let your foot off the throttle, wasting gas. I'd think the feedback loop would nip that in the bud a lot quicker.
Colin
To save the gas it'd have to be something that detects rich & instantly cuts the injector open time or something. hey, wait a sec...that's what the vw engineers ended up doing in later models... so it goes. i'll now resist the urge to tinker & frankenstein my vanagon in an attempt to improve mileage.
Back on topic,(sorry) I have a type k thermocouple wire with a crimped on ring terminal under plug #3 connected to a $11 handheld thermometer taped to the dash. (That's right, I spare no expense). CHT's are in the 380-400 around town and rise up to about 420-430 on highway around 65...all on mildly hilly terrain. Engine has 25k & is a VW Canada rebuild from around 1998.