Question about 1996 BMW 318

Open Question

How do i solve failing NOX problem on 318i, 1995 model

How do i solve failing NOX problem on 318i, i have replaced the converter and o2 sensor, i have check engine light on and it was reading o2 sensor

Posted by on

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 1779 Answers

SOURCE: 1996 BMW 318i 02 Sensor

Oxygen sensor (Only 1) located in exhaust system, on passenger side, below front seating area. countrycurt0

Posted on Oct 11, 2008

Ad
  • 112 Answers

SOURCE: engine misfire and some times does not start when cold

Replace the Oxygen sensor. All your trouble codes are downstream of the oxygen sensor, and are related to it.

Once you replace the oxygen sensor (replace with a BOSCH sensor!), remove the positive battery cable, step on your brakes for 10 seconds, then reattach the cable. This will clear the codes from your ECM (Electronic Control Module).

Posted on Mar 26, 2009

  • 972 Answers

SOURCE: My 1995 525i has fault code 12210 O2 sensor

if the 02 sensor is unplugged and you are reading a scan tool from the diagnostic link then of course the 02 reading is wrong
if you are using a volt meter right at the connector thats on the sensor then the 02 will read lean because the heating elements in it are disconnected when you unplug it
check 02 voltage with engine warmed up and 02 sensor connected you will have to pierce insulation with your probe

Posted on Mar 22, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Fault 148000 - the upper limit value of component NOx sensor downstream of SCR catalytic converter is reached....what does this mean and how to fix it? This is a 2011 MB E350 Bluetec


I'm no expert on this, but O2 sensors downstream from the cat converter are there to insure the converter is doing its job. So, the converter may be bad, or the O2 sensor may need to be replaced.

Jan 15, 2015 | Cars & Trucks

1 Answer

1992 toyota camry fail smog test on nox


Check or replace O2 sensor; scanned fault codes in order to know aditially what other sensor could be failed.

Aug 20, 2012 | Toyota Camry Cars & Trucks

1 Answer

1995 ford ranger failed nox at 15mph All other readings passed.


If the Exhaust Converter is original to the truck,replace it

They only last 12 to 15 years under perfect engine running
conditions.

Also the EGR Valve has to work correctly & you can not
have any overheating issues,from anything,cylinder misfires,
coolant temp,old O2 Sensors, with 100,000 miles on them

Jul 24, 2012 | Ford Ranger Cars & Trucks

1 Answer

High Nox levels on emmission test


here are the possible causes of high nox levels, Misfire condition
Malfunctioning or improperly adjusted EGR valve
Failed oxygen sensor
Leak in exhaust tubing upstream of converter
Excessive carbon deposits in combustion chamber
Improper spark advance
Blocked coolant passage
Overly lean air-fuel mixture
Damaged cold air duct
Failed or malfunctioning catalytic converter
Corroded or damaged engine sensor electrical connections.the best advice is to take it to a emission specialist to check it out! good-luck!

Apr 29, 2011 | 1995 Mercury Tracer

1 Answer

I got a 95 corsica 2.2L failed emission test the carbon monoxide is too high the hydrocarbons passed but were higher than previous tests and the nox passed but were higher than previous tests...


sounds like a bad cat and o2 sensor. try a scanner, if the downstream sensor is attempting to make a 99% fuel trim adjustment, you can bet it needs changing along with the catalytic converter. get someone to follow you and accelerate hard, a rotton egg smell is a dead giveaway

May 28, 2010 | 1995 Chevrolet Corsica

1 Answer

Engine light codes 02-3151 and P0420


Code P0420 is a code for Catalyst efficiency. The computer is seeing the post Catalytic converter o2 sensor having too much activity. The Cat. should be cleaning the exaust of Hc, co, and Nox. The post cat o2 will read the o2 content in the exhaust and if it moves up and down too much or to high and low, the computer interperates that as the cat not ridding the exhaust of it's pollutants. This indicates that the converter is unable to preform properly. The problem could be a bad cat, o2 sensor (Pre- and/or post cat)or o2 sensor wires, or an air fuel mixture problem that has caused the cat to fail. Many other engine operating system failures can cause the converter to not work properly.

Sep 10, 2009 | 2000 Toyota Corolla

1 Answer

Cant pass smog failed nox got 2032,allowed 695 95 bmw 318i


Since your car has no EGR valve, you have one of two problems. You either have a bad O2 sensor, making the car run lean, or you need a new Cat. Or, you've had a bad O2 for so long that it ruined your cat, and now you may have to replace them both. Either way, I'd highly recommend having a smog tech take care of this problem for you, since you have no access to a smog machine that will tell you if the repairs you've done have solved your problem.

Jul 02, 2009 | 1992 Oldsmobile Cutlass Supreme

1 Answer

02 kia fail smog high nox


if the engine computer says that you have a slow O2 sensor what it means is that the sensor does not react as quickly as it should and it needs to be replaced. nox is oxides of nitrogen, a product of too lean combustion which causes cylinder temps to go too high. it sounds like replacing O2 sensor will make it happy. engine computer is having a hard time controlling lean/ rich fuel mix because sensor is slow to register changes, needs to have response time in milliseconds or engine computer can't operate properly. O2 sensors do wear out, normal service item. hope that helps

Jun 17, 2009 | 2002 Kia Optima

1 Answer

NOX SENOR


I have yet to see a car with a Nitrogen Oxides(NOx) sensor on it. However I have seen Oxygen (O2) sensors. The O2 sensor monitors the remaining amount of oxygen left in your exhaust, and tells your Engine Control Unit(ECU) how much fuel to use. The sensor looks much like a stainless steel spark plug and is found in the exhaust system. Your car being a 1991 it should only have one. It will be up stream of the Catlytic converter, maybe in the Exhaust manifold. cost between 50 and 150$us.

Jan 08, 2009 | 1991 Volkswagen Jetta

1 Answer

CHEVY SUBURBAN FAILED SMOG BECAUSE OF HIGH NOX VALUES.


nox is from running lean..... its realy high temps that cause this.......... replace the o2 sensors this should cure that any more help let me know

Oct 24, 2008 | 1993 Chevrolet Suburban

Not finding what you are looking for?
1996 BMW 318 Logo

Related Topics:

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top BMW Experts

Frankie B

Level 2 Expert

65 Answers

Fred Sops

Level 2 Expert

272 Answers

Doberman

Level 2 Expert

254 Answers

Are you a BMW Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...