Question about 1999 Land Rover Range Rover

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I have a Range Rover 4.6 SE which has failed on emissions. CO reading is very high. Runs like a dream. No fault codes. What could cause this please?

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Posted on Jan 02, 2017

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SOURCE: lost security card. need '99 range rover 4 digit code

I know in the 98's it's 4242

Posted on May 01, 2009

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SOURCE: Hi, 2000 Landrover Freelander 1.8 petrol, failed MOT on CO emissi

check both lambda sensors for breaks in wires and for open circuit on heater side of lambda sensor on the one under the car on the second cat,failed heater element will not heat gas engough for sensor to read causing false readings , also check for slow i.a.c valve on inlet manifold.

Posted on Oct 01, 2009

  • 3 Answers

SOURCE: my range rover has got an eas fault showing and

if the pump has run for over 15mins it will go eas
if you unplug ecu [ bottom one under pasenger seat] do not have key in or enging running it may reset if this is a no go it will have to be plugged in and reset
yours dave

Posted on Mar 21, 2010

noranda21
  • 1547 Answers

SOURCE: On my 2006 range rover

have the engine light tested for free that will tell you the problem good luck

Posted on Nov 29, 2010

alicantecoli
  • 22246 Answers

SOURCE: 05 Range Rover HSE inactive air suspension

Sorry computer controlled and it needs the dealer software to find the fault ,lot of money i would imagine to repair in the dealers

Posted on Feb 14, 2012

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2 Answers

What does fault code P0497 mean for Honda Cr-v ?


Nothing for that code either. Are you sure you are reading the reader properly?

P1382 Cylinder Position Sensor No Signal P1456 EVAP Emission Control System Leak Detected (Fuel Tank System) P1457 EVAP Emission Control System Leak Detected (Control Canister System) P1459 EVAP Emission Purge Flow Switch Malfunction P1486 Thermostat Range/Performance Problem P1491 EGR Valve Lift Insufficient Detected P1498 EGR Valve Lift Sensor High Voltage P1508 IAC Valve Circuit Failure

Dec 30, 2015 | Honda Cars & Trucks

1 Answer

Perform diagnotic reading for hc/co fault code


No question there either

No exhaust emission readings

No engine model

No fault codes

You can Google the reason for High HC & CO
to see what causes that & print a chart

I fail to see why your here
No one owns an expensive 5 gas analyzer,
only repair shops

I guess you want to make repairs yourself, but failed
to say so & do so without knowing the present emissions
the car has or what the standard you have to meet is

That should have been given to you when it failed

In my country you can put your VIN # into the motor
vehicle site & get it ,if it wasn't on the copy your get
at the inspection station

If you study enough on the internet about exhaust gases,
then all you have to know is how to work on a car, to correct
those problems

Jul 19, 2014 | 1988 Alfa Romeo Spider

1 Answer

High CO emissions. MOT failure. No codes. Runs like a dream. Fuel consumption high


check that the cat converter is not failing and blocking up the exhaust system. or not doing it,s job. replace both HO2S and O2 sensors

Apr 15, 2014 | 1999 Land Rover Range Rover

2 Answers

1995 Honda Civc failed Emmisions test


Emission test by codes reader? or smog? Any codes?

May 22, 2017 | 1998 Honda Civic

1 Answer

2003 Land Rover Range Rover;SES light came on, had it scanned and came back w/code p1453. Can you tell me common symptoms of this code and what a fix may be?


Diagnostic Test Code (DTC) P1453 is a "Manufacturer Specific" code, which means that it is defined only by the manufacturer of the vehicle and does not exist in any standard lists of DTCs, such as the standard SAE J2012 listings.

DTC P1453 for a 2003 Land Rover Range Rover, is defined by the vehicle manufacturer as "DM-TL REFERENCE CURRENT TOO LARGE"

The possible causes listed by the manufacturer are"

> DM-TL Module

Please note that DM-TL is an acronym for "Diagnostic Module - Tank Leak". This is the module that performs the diagnostic testing on your evaporative emissions system.

So, basicly what is happening here, is that the system that was designed to test the system and warn you of an impending failure, is what is actually causing the system to fail.

Jun 13, 2012 | Land Rover Cars & Trucks

1 Answer

My 2008 Range Rover Vogue TDV8 keeps draining the battery. This is the second time I have had to call AA to jump start me....Is this a commong problem with these cars ?


The Range Rover runs system even when you have locked the car and walked away, you can often here the fan on the computer running from inside the front wheel arch. What can happen is if there is an error caused by a faulty sensor then the computer fails to shot down and instead runs all night until the battery goes flat. Best thing is to get fault codes read and start to try and figure out what exactly is causing it to happen. I would say that this is a common problem but most people don't realise why its happened as they only realise when the car has gone flat.

Feb 14, 2011 | 2008 Land Rover Range Rover

2 Answers

Hi, 2000 Landrover Freelander 1.8 petrol, failed MOT on CO emissi


check both lambda sensors for breaks in wires and for open circuit on heater side of lambda sensor on the one under the car on the second cat,failed heater element will not heat gas engough for sensor to read causing false readings , also check for slow i.a.c valve on inlet manifold.

Sep 26, 2009 | 2002 Land Rover Freelander

1 Answer

What will bring readings into limit


A failing oxygen (O2) -sensor will give failing emission tests. Normally you also get other symptoms:

- too high fuel consumtion
- bad acceleration, stalling problems, sputtering
- the check engine light comes on indicating that the engine control unit has recorded error codes (which will be related to readings of incorrect fuel/air ratio when read by the OBD diagnostics tool at a repair shop).

It is always a good idea to see if you can get any readings from the check engine light if present or much better by an OBD reader to be as certain as possible.

Another component that could cause failing emissions tests is the catalytic converter, giving a similar range of symptoms. To determine if this is the cause is not so easy on older cars with only one O2 sensor, it requires diagnostic skills and equipment. On newer cars with OBDII-systems it will give a recognizable fault code for the cat converter.

Then there are also the issues of the actual cause of malfunction in either or both of these components, is it due to old age and normal wear and tear or is it due to contamination from burning oil (blue tail pipe smoke) or anti-freeze (white smoke), misfiring, etc? Then the cause must be treated as well for a successful repair.

Normally these components have a very long life span and should not have to be replaced more than once or maybe twice for the sensors during the car's lifetime in an otherwise health engine.

Good luck!

May 25, 2009 | 1992 Honda Accord

2 Answers

Ford failed MOT on High CO emission


High CO usualy means the O2 sensors are not reading properly. Take it to a parts store that can read codes, I know Auto Zone does in my area. If it is the O2 sensor it is an easy fix but the sensors run about $50.00 each.

Apr 18, 2009 | 1995 Ford Escort

3 Answers

ASM 2525 NO ppm TAILPIPE EMISSIONS failure


have you had the the engine codes pulled and reset?
and if so what are your engine codes?
i dont know of any car that will pass emissions test with the engine light on.
we cure your trouble that caused your engine light to come on and you will pass your test.
later
paul

Nov 24, 2008 | 2002 Toyota Sienna

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