Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - ScanGauge going crazy on finacee's Riviera

wmjinman · 01-25-2013, 03:52 PM

Old Mechanic,
Nope, it's not just when I'm coasting. When it's doing it, it'll even do it going UP the same hill I'd expect over 100 MPG going down. And it seems not to care about throttle input, but only speed. That is, at 70 MPH, it'll show 303 MPG going up or down hill. At 50 MPH, it'll drop to something like 242 MPG. At 25 on a city street, it might be 150 MPG. But it's intermittant - sort of. It will show "realistic" readings (like 17.2 while slowly accelerating at 30, or 36 while easing up approaching an off-ramp), but then the next time I look, it'll be showing 242 or something.

MTXA,
Thanks for that. On the Riviera forum, it sounds like those MAF sensors are like $200. CR@P! After the Suzuki Swift (White Gnat) repair, I'm worse than broke!! But there has been a gas smell in the car lately too, so maybe that's part of the open loop, or running rich. I'm not enough of an auto diagonstician (???) to do the test you're talking about, but I'll surely pass on the suggestion to my mechanic. Thanks again.

JRMichler,
Thanks. Sounds like the MAF situation needs to be taken care of, regardless, so that'll be the next step with this car. Once that's done, we'll see how things are.

Thanks, all. Bad news isn't fun, but knowing the truth is always a good thing - I guess...

01-25-2013, 03:52 PM	#5 (permalink)
wmjinman Master EcoModder Join Date: Oct 2012 Location: Carson City, Nevada Posts: 612 Jimmy - '00 GMC Jimmy SLT 90 day: 21.18 mpg (US) The White Gnat - '99 Suzuki Swift Team Suzuki 90 day: 51.87 mpg (US) Thanks: 240 Thanked 114 Times in 90 Posts	Old Mechanic, Nope, it's not just when I'm coasting. When it's doing it, it'll even do it going UP the same hill I'd expect over 100 MPG going down. And it seems not to care about throttle input, but only speed. That is, at 70 MPH, it'll show 303 MPG going up or down hill. At 50 MPH, it'll drop to something like 242 MPG. At 25 on a city street, it might be 150 MPG. But it's intermittant - sort of. It will show "realistic" readings (like 17.2 while slowly accelerating at 30, or 36 while easing up approaching an off-ramp), but then the next time I look, it'll be showing 242 or something. MTXA, Thanks for that. On the Riviera forum, it sounds like those MAF sensors are like $200. CR@P! After the Suzuki Swift (White Gnat) repair, I'm worse than broke!! But there has been a gas smell in the car lately too, so maybe that's part of the open loop, or running rich. I'm not enough of an auto diagonstician (???) to do the test you're talking about, but I'll surely pass on the suggestion to my mechanic. Thanks again. JRMichler, Thanks. Sounds like the MAF situation needs to be taken care of, regardless, so that'll be the next step with this car. Once that's done, we'll see how things are. Thanks, all. Bad news isn't fun, but knowing the truth is always a good thing - I guess...