Scangauge question... - Page 4

SMBDAD · 06-16-2009, 08:59 PM

Can you guys tell me if your scangauge works for the fuel loop (open or closed). It says that it will be open when cold, but I drove around today and it never read CLOSED.

Ford_6L_E350 · 06-19-2009, 09:28 AM

I thought a diesel was always OPEN loop.

But, I've never checked it.

Mike

geoffff · 06-19-2009, 10:51 AM

Interesting. I hadn't really thought about this, but being a car geek I was curious and so I googled it....

Today's diesel engines are all "open loop". That is, they have no continuously-adjusting "closed loop" feedback system with a combustion sensor (like a gasoline engine's oxygen sensor on the exhaust) helping the engine compensate for changes in altitude or injector variations, etc.

Here's an article on this issue, and changes to come: Closing the Loop: Closed-loop systems are possible in diesel engines.

-- Geoff

Veg Hed · 06-19-2009, 07:59 PM

All right...Just got back from a grueling 2 week assignment camping out on the North Rim of the Grand Canyon and in the North Kaibab. Working for the Park Service has its perks sometimes I guess. My scangauge was here waiting for me when I got back and I'm going to hook it up ASAP. As chance has it, my friend is getting married on the North Rim on the Solstice so I am heading right back out tomorrow for the wedding. I want to monitor Trans. temp, MPG, RPM's and one other.

Veg Hed · 06-22-2009, 03:42 PM

Just took the SMB out on the North Rim of the Grand Canyon this weekend. This was my first trip with the scangauge and I'm having a couple of issues. Maybe somebody can help me out.

First, I tried to set up the X-gauge to read transmission fluid temp. (TFT) but when I select TFT as one of my gauges no number is shown.

Second, my fahrenheit water temp. (FWT) always show 40.

Any ideas what is going on here?

**daveb** · 06-22-2009, 04:12 PM

Will the scan gauge read temp on that transmission?
I'd check that then try to set it back to default and re program it. Maybe you missed something in the setup.

geoffff · 06-22-2009, 04:47 PM

I'm probably not very helpful here -- the trick would be to find someone else with a 2000 Ford 7.3 diesel who's had success with the Scangauge.

There's a chance that in 2000 Ford didn't support these OBD-II values on that powertrain. I assume that for the TFT X-gauge you tried both the PWM and CAN methods, and double-checked your programming sequence, right?

There are a couple other Scangauge gauges that show nothing (or bogus values) for my particular engine, too.

-- Geoff

Veg Hed · 06-22-2009, 04:58 PM

Thanks for the help guys...Went outside to check and sure enough I programmed the TFT as a CAN vehicle. I switched it to a Ford PWM and it started working. I also went ahead and programmed in horsepower (HPR).

However, I am still showing 40 for my FWT no matter how hot it is. And this was one of the defaults that I didn't have to program. Any ideas?

Ford_6L_E350 · 06-25-2009, 10:59 AM

Send Scangauge a question, they can probably tell you the reason.

Mike

skrivan · 07-11-2009, 12:14 PM

my scanguage always says "not ready" when i look for codes..any ideas on that? thanks guys....