blurat Posted September 13, 2015 Share Posted September 13, 2015 Hi. I put 94 legacy n/a into my Vanagon a couple years ago. My first trip to Washington and then south to San Diego yielded mileage of 18-21 per gallon. I took a trip to Sacramento yesterday and got 12 . The van ran strong and seemed to run as usual. I only noticed the fuel wasn't lasting too long. My wife drives the van mostly around town and is always filling up, I figure because of all the stop and go. My idle only seems a tad slow but it has always been that way. I pulled the plugs and did a comp check, 150-160. The plugs looked a bit lean but not like they get hot. I can run at 70 all the way to Sac but generally keep around 60 - 65. The only oddity I see is my first water reserve goes low and doesn't push water into the overflow tank. Link to comment Share on other sites More sharing options...
john in KY Posted September 13, 2015 Share Posted September 13, 2015 (edited) Just a wag but maybe the O2 sensor has failed and now the engine is running in that closed loop mode. Edit: Forgot to also suggest the coolant temperature sensor. Edited September 14, 2015 by john in KY 1 Link to comment Share on other sites More sharing options...
blurat Posted September 15, 2015 Author Share Posted September 15, 2015 Would I not get a check engine light for either of these conditions? Is there a way to check the o2 sensor? Thanks for reply. Appreciated. Link to comment Share on other sites More sharing options...
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