Service Engine Soon - 1999 D2 w/ 75K Miles

[ronakdcat]

I have searched the web, and have not found a real answer to this. I just bought this D2 a couple of months ago.

The Service Enigne Soon light on my 1999 D2 w/ 75K miles has been on for about 2 weeks. It came on once, and I took it to an AutoZone type shop, which did a oil change and checked the car out, they said the light reset itself. 4 Days later the light came on again, and its still on. I have checked the gas cap, nothing looked wrong. I also looked for this TRW Emissions box in the passenger kick panel (apparently this is ONLY on D1's).

The car drives fine, cannot feel or hear anything different. Is there a way that I myself can fix or reset the light in addition to finding out what is causing this.

I really do not want to spend $250+ at the dealer to figure this out.

Thanks

 

[Aaron Owens]

Try having Autozone read the code again. Mine did that at about 50k miles and the error code was something like"4th gear error code".

Turned out it was the MAF sensor. About $140 from my dealer. Very easy install.

Aaron

 

[Apexdisco]

Check this out -->

http://www.discoweb.org/reset/index.htm

 

[ronakdcat]

As an FYI, when we took it to the Mechanic they saw the PO442a code as being related to an EVAP leak.

As an FYI, this is a Disco 2. (From what I have read there is no Emissons Relay that you can reset)

 

[Apexdisco]

As an FYI, when we took it to the Mechanic they saw the PO442a code as being related to an EVAP leak.

As an FYI, this is a Disco 2. (From what I have read there is no Emissons Relay that you can reset)

I've got a 99 DI.

I agree, take it to Autozone and have them read the code and even reset to see if it comes back.

You can check the codes against a matrix online.

 

[ptschram]

The Disco II SES light is illuminated for both transmission and engine operational issues.

There is no box like on the earlier trucks. Emissions reminders on P-38s and DIIs are all done by software in the BeCM or BCU.

Neither of these vehicles can be expected to communicate with less than comprehensive Rover-specific diagnostic tools. Even then, the results are not necessarily clear, nor straightforward. Lots of wild geese.

Peace,
PT

 

[rovercanus]

If the code points to the MAF, I would suggest cleaning it before you replace it.
Use Electronic Contact Cleaner.This is a solvent that drys fast and leaves no residue.
You can get CRC at Lowes or go to Radio Shack.
I think a lot of MAF's are replaced for no good reason except being dirty.

 

[andrewv]

We always try to clean MAFS first, and about 40% of the time it works, but usually only for awhile.