Question about 1996 Honda Accord

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I just replaced the O2 sensor in my 1996 Honda Accord EX and the check engine light came back on saying that the car is "running lean." What does that mean and where do I start to look on how to fix this problem??

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If you are near a chain auto parts store, they may reset your computer free; call them.
Running 'lean' means the fuel-air mixture is not ideal and the amount of fuel being injected is less than it should be relative to the air coming in. Running rich is the opposite. A lean burn can cause excessive heat and do some damage if extreme enough. The discoloration of the spark plugs will sometimes show this condition by having deposits that are a bit too light; they should normally show a beige or light brown coating after some miles are on them.
I think the computer should somewhat compensate for a dirty air filter but it wouldn't take long to check it.

Posted on Oct 01, 2010

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Posted on Jan 02, 2017

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I have a 1996 Honda Accord EX. It was just serviced 0n 09/11. The following day the engine over heated and then the Engine Light went on. Brought it back to Valvoline, Guilford CT and they provided these...


http://www.obd-codes.com/trouble_codes/ here features your problem codes. 401 is an EGR or exhaust gas recirculation problem. saying exhaust gas is not getting back to the intake. this is almost a non issue. its there purely to help reduce emissions by your vehicle and a by product is actually more heat being shunted back to the motor and less power as bad gas gets mixed with good oxygen. the other is an oxygen sensor malfunction. this is concerning as the computer may be telling the engine to "Lean out" the fuel. pushing less fuel into half or all of the engines cylinders and when it burns it burns much hotter than a "rich" mixture. head to this link and start checking your engine for loose, cracked or damaged little black hoses called vacuum lines. http://www.obd-codes.com/p0171 that is likely why your engine cooked. the mechanic may have spilt oil onto the sensor too.

Sep 17, 2012 | 1996 Honda Accord

1 Answer

1996 Honda Accord Running lean after changing tune up and new oxygen sensors.


My first thought was fuel pressure. Low fuel pressure would cause the engine to go lean but not set a code for the actual problem.
Is it possible the fuel filter is clogged ? Have you checked fuel pressure?

Jun 28, 2012 | 1996 Honda Accord

1 Answer

1996 Honda Accord scanner threw out codes for VSS and oxygen sensor, it this a major issue?


yes those are an issue, not as major as a blown motor, but still an issue. the vss ( vehicle speed sensor )is located on the transmission and is fa countermainshaftsensor8wp.jpgeasy to replace.the o2 sensors tell the cars computer if it is running lean ( too much air ) running rich ( too much fuel ) so if you have a bad o2 sensor your car may think it is running lean so it may reduce amount of air or increase the amount of fuel. a bad o2 sensor will reduce your fuel mileage quit a bit. hope this helps, let me know

Nov 07, 2011 | 1996 Honda Accord

2 Answers

Have a 91 honda accord. experiencing dramtic hesitation when accelerating but check engine light comes on and problem dissapears. Once you stop for a short period of time check engine light goes off and...


Sounds like your O2 sensor is malfunctioning. When the check engine light comes on, the computer goes into a preset mode bypassing the O2 sensor and that's why it suddenly runs good. Have the O2 sensor checked. You can also have the trouble codes read and they should point you in the same direction.

Jan 22, 2011 | 1991 Honda Accord

2 Answers

I have a Honda Accord 2003, how can i fix a downstraem Oxygen sensor.. does this affect the gas cosumtion performance.. how can i fix this.. Help.!


o2 sensor is very important part to the engine when it come to the fuel economy. o2 sensor send information to the computer (ECU) which compute and calculate ratio of burnt exhaust gases. if the engine is not run properly either is too lean or too rich the o2 sensor will detect it as the car will triger the check engine light. you can drive the vehicle which will not hurt it as long you can tolerated the light however the car will get terrible gas mileage and poor performance as the ECU will try to lean the engine out itself. o2 sensor is fairly cheap to replace and fix. Let assume the car get 30 mpg on the high way, running with check engine light/bad o2 sensor will change the gas mileage to 18-25 mpg. If the car is V6 make sure you replace o2 on both side. good luck!

Nov 23, 2009 | 2003 Honda Accord

1 Answer

Failed emission NOx on a 93 Honda accord ex its papes the 25/25 test but not the 50/50 test. what is wrong how do I fix this? check engine light stays on?


The only thing I can think of checking would be the EGR valve, a faulty cat converter or faulty o2 sensor. Converter shouldn't set off check engine light though unless it is clogged causing too much back pressure, most likely EGR Valve.

Oct 01, 2009 | 1993 Honda Accord

1 Answer

Car was giveing slow acceloration fron time to time


When disconnecting an O2 sensor it could cause damage to the EGR system. Why was it disconnected in the first place?

May 24, 2009 | 1996 Honda Accord

2 Answers

Where is the o2 sensor located on a 1991 honda accord ex 2.2 engine


Further clarification on the O2 sensor location: It is in the exhaust pipe, under the center of the car, on top of the pipe, just aft of the oil filter.

Jul 12, 2008 | 1991 Honda Accord

1 Answer

Check engine light on 1997 Honda accord EX


Hi

If the engine is running without any problems then The fault code which has flagged the checked engine light will either pertain to the upstream O2 sensor, a drop in catalytic efficiency, an EGR issue, or maybe even an EVAP issue.

A lot of EVAP issues can be resolved by simply ensuring that the fuel filler cap is on securely, otherwise a vacuum leak will be detected in the system and the check engine light will come on.

A drop in catalytic efficiency (P0420) is usually temporary and will stay away after a reset.

EGR issues can sometimes be rectified by removing the EGR valve and cleaning it, and the ports on the intake where it was sat, but there are occasions when it has to be renewed.

The O2 sensor issues are a wee bit different. There are a number of fault codes which relate to the O2 sensor, and which make the O2 sensor look faulty, when the O2 sensor is actually attempting to rectify a problem from elsewhere and isn't faulty at all. However, they could also be due to a fault with the O2 sensor. Basically, further checks should be made before condemning the O2 sensor should the fault code relate to the sensor.

Have a code read done and then have the codes reset and see what comes up.

Regards

Geordie

Jun 23, 2008 | 1997 Honda Accord

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