Service Engine Soon Light - Land Rovers Only

stolenheron · 09-18-2007, 08:11 PM

Ok, my first malfunction with my rover. Its a 2004 Disco II SE7 with 20,900 miles and its oil was changed 1 month ago.

I am about 90% sure I fixed the problem and its no big deal..but i wanted some input. I filled my gas tank 3 weeks ago (i'm only down to a half tank now becuase I hardly ever drive). Well today it got down to a half tank and as i was driving home from dinner my Service Engine Soon light came on. I got home, opened the manual and popped the hood. I figured it was my gas cap, well i checked it and it was loose (which the manual says is the most common issue). Tightened it up and checked my fluid levels for good measure.

I know the light will not turn off with out a dealer turning it off, but I wanted to know if there might be anything else I can check before I go to the dealership (I know it seems paranoid...but i love my rover too much).

Also...Are there any tuners/scanners/computer diagnostic tools available for sale for the 4.6L V8 Disco IIs? if so where can I buy one? And What computer port does the land rover's have, i.e. OBDII or OBD ports?

The reason I ask is because I had diablosport predator and a sct xcaliber II scanner for the OBDII port for my old 2005 V Supercharged mustan...and I always used them to look at my problems before a dealership checked my car.

ealex · 09-18-2007, 10:03 PM

The SES light can be reset by an ODBII code reader like the $40 variety from harbor freight. The ODBII port is under the dash on the driver's side.

auwesman · 09-18-2007, 11:37 PM

If it was the gas cap, the light will go off on its own. usually takes 2-3 fill ups.
One thing you can do is go to the local Autozone and have them check the codes for free. Get the codes and post them. Autozone will also clear your CEL light for free if you ask them to.
Or just buy one while your there. They range from $20.00 to $3,000.00. Just get one that can clear the codes. An OBDII scanner will read codes for any car built '96(?) or later. If I were you, I'd just buy one. Chances are excellent you'll need it eventually.

stolenheron · 09-19-2007, 06:18 AM

thats what I figured. I didn't know if a generic one would work or not. thanks for the tips, i'll probably buy a scanner.

09-18-2007, 08:11 PM	#1 (permalink)
stolenheron 2004 Discovery II driver Join Date: Jun 2007 Location: Fort Myers, Florida Posts: 1,586 Gallery: 6	Service Engine Soon Light Ok, my first malfunction with my rover. Its a 2004 Disco II SE7 with 20,900 miles and its oil was changed 1 month ago. I am about 90% sure I fixed the problem and its no big deal..but i wanted some input. I filled my gas tank 3 weeks ago (i'm only down to a half tank now becuase I hardly ever drive). Well today it got down to a half tank and as i was driving home from dinner my Service Engine Soon light came on. I got home, opened the manual and popped the hood. I figured it was my gas cap, well i checked it and it was loose (which the manual says is the most common issue). Tightened it up and checked my fluid levels for good measure. I know the light will not turn off with out a dealer turning it off, but I wanted to know if there might be anything else I can check before I go to the dealership (I know it seems paranoid...but i love my rover too much). Also...Are there any tuners/scanners/computer diagnostic tools available for sale for the 4.6L V8 Disco IIs? if so where can I buy one? And What computer port does the land rover's have, i.e. OBDII or OBD ports? The reason I ask is because I had diablosport predator and a sct xcaliber II scanner for the OBDII port for my old 2005 V Supercharged mustan...and I always used them to look at my problems before a dealership checked my car. __________________ 2004 Discovery II SE7 - My Ride 2006 LR3 SE - Dad's Ride

09-18-2007, 11:37 PM	#3 (permalink)
auwesman '00 DII Member Join Date: Mar 2007 Location: Birmingham, AL Posts: 223 Gallery: 0	If it was the gas cap, the light will go off on its own. usually takes 2-3 fill ups. One thing you can do is go to the local Autozone and have them check the codes for free. Get the codes and post them. Autozone will also clear your CEL light for free if you ask them to. Or just buy one while your there. They range from $20.00 to $3,000.00. Just get one that can clear the codes. An OBDII scanner will read codes for any car built '96(?) or later. If I were you, I'd just buy one. Chances are excellent you'll need it eventually. __________________ '00 DII '07 Toyota Taco War Eagle!

09-19-2007, 06:18 AM	#4 (permalink)
stolenheron 2004 Discovery II driver Join Date: Jun 2007 Location: Fort Myers, Florida Posts: 1,586 Gallery: 6	thats what I figured. I didn't know if a generic one would work or not. thanks for the tips, i'll probably buy a scanner. __________________ 2004 Discovery II SE7 - My Ride 2006 LR3 SE - Dad's Ride

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09-18-2007, 10:03 PM	#2 (permalink)
ealex Member Join Date: Jan 2007 Location: Colorado Springs, CO Posts: 55 Gallery: 0	The SES light can be reset by an ODBII code reader like the $40 variety from harbor freight. The ODBII port is under the dash on the driver's side.

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