Trouble code p1668 1999 land rover - 1998 Land Rover Discovery

SOURCE: LAND ROVER DISCOVERI 1995

The radio codes are only available from the dealer, you will need to goto your nearest dealer with your registration, they will type your vin# in there system and give you the code.
hope this helps

JPTCAT

SOURCE: 1997 LAND ROVER RANGE ROVER 4.0

Unless the engine was replaced , from original the 4,0L petrol engine is a V8 with a code of 42D and not a V6
Hope this helps

SOURCE: 1999 land rover disco trouble starting, misfiring

Is it a Discovery I or II?

SOURCE: default code P1451 Land Rover Discovery II

The code P1451 on a Land Rover is "Leakage Detection Module Motor power stage error Drive cycle A:Signal out of range - above maximum". This is an OBD-II diagnostic system code. As far as I know, a 1995 Land Rover Discovery does not use a OBD-II system. Is it possible that this rover is a later model year

Robert Veldman

• 373 Answers
• Posted on Apr 04, 2011

SOURCE: I have a 2003 Land

The 171 174 codes are for lean conditions. I couldn't find the other codes. I used this website:
http://www.obd-codes.com/trouble_codes/

Here is additional info/clues on the lean codes for that website:

You will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Causes

A code P0171 may mean that one or more of the following has happened:

• The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry.
• There could be a vacuum leak downstream of the MAF sensor.

Possible solutions include:

• In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
• Inspect all vacuum and PCV hoses, replace if necessary
• Check for a dirty fuel filter and proper fuel pressure