Code reader

Question

Hi, I did some reshearh and I am a bit confuse on what I should use to read the CEL Code on my MH. Does the scangage works in and reads the codes? I also read than the Silverleaf is a good system but would not read all the codes, and from what I have been reading, an OBDII would not work on RV Diesel Engine.

I have a Chech engine light comming on once in a while. I have a Cummins ISB 300 HP 2003. The light comes on especially after using the engine brake or driving in town. It never come on at steady highway speed. When the CEL comes on, the engine will surge at around plus or minus 2000 RPM and loose some power while doing so. When I step on the pedal, the surge stops and it pulls good but the light stays on. Then the light disapear after a while.
Sometimes the Cel light up after I start the engine then it goes off.

pianotuna · Answer

Hi Kidoo,I have the scangauge and yes it reads codes and can clear them. However, I do not know if it works with a diesel.

kidoo · Answer

It read some codes on my Ford 6.0 Diesel but not all the codes.

gatorcq · Answer

The ScanGauge "D" is made for the Diesel engine and works well.
The web site http://www.scangauge.com/
The latest version of software allows the capture of codes which then can be program into it.
Silverleaf is similar but cost more and uses space on the dash. You can search for either in a web browser.

And yes I have one and been using it now for over a year.

hershey · Answer

The reason you get a fault or code when using the engine brake is because the engine is over-revving on your decent.  Your engine could be red-lined at about 2750.  That number is for peak rpm on acceleration.  When the engine brake is engaged you can easily exceed that number.  That isn't a problem  There probably is a de-acceleration number on the engines but its a larger number than the acceleration rpm number.  You engine computer will prevent the engine from over-revving when using the engine brake but it still shows up as a fault code and the code light will light up.  Rest easy.

kidoo · Answer

hershey wrote:The reason you get a fault or code when using the engine brake is because the engine is over-revving on your decent.  Your engine could be red-lined at about 2750.  That number is for peak rpm on acceleration.  When the engine brake is engaged you can easily exceed that number.  That isn't a problem  There probably is a de-acceleration number on the engines but its a larger number than the acceleration rpm number.  You engine computer will prevent the engine from over-revving when using the engine brake but it still shows up as a fault code and the code light will light up.  Rest easy.I will check the RPM when I use the brake. The lite also comes on just driving at slow speed in town and stays on for a while. What I do not like is the surgging when going to around 2000 RPM while the lite is on.I have the scangage II in my Ford. I see the D on the net and it shows an RV, good news, thanks, i will order this one. It also says that for the big diesel engine the OBDII is not standard.

Forum Discussion

Code reader - Check Engine - Scangage - Silverleaf or OBDII

About Motorhome Group

Related Content

OBD 2 Reader

Readers Choice Awards

Data port readers

Which Code Reader to Buy ?