My honda accord 1992 had a check engine light come up. I diagnosed the problem to be a code 43: fuel feed system. at higher speed the check engine light will always come on and when I am stationary it feels like the car is going to stall. the fuel economy has also dropped dramatically by about 150 km a tank. Does the o2 sensor need replacing or is it more than that?

Why would you take any car to a dealership?

Never a car over 5 years old

PO271 Cylinder #4 Injector Circuit High

Take to a local repair shop

You won't have the ability to diagnose

P1457 HONDA - Evaporative Emissions Control System Leakage EVAP Canister Systemhttp://engine-codes.com/p1457_honda.htmlForum CodePossible causes- Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap There is a Honda factory service bulletin with information on how to diagnose the P1456 on the following Honda models:
1998 Honda Accord
1999 Honda Accord
2000 Honda Accord
1998-2000 Honda Accord
symptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vaporsP1457 HONDA Description The evaporative emission (EVAP) control system stores fuel vapor from the fuel tank in the EVAP canister temporarily to prevent it from escaping to the atmosphere and to enable it to be drawn into the engine by intake manifold vacuum and burned. In addition, the onboard refueling vapor recovery system (ORVR) stores fuel vapor generated when refueling in the EVAP canister.

The EVAP control system leak detection method improves the accuracy and frequency of the detection by determining faulty components and vapor leakage for each part. The EVAP control system (from the purge valve to the fuel tank) is divided into two parts. One is the "EVAP Canister Side" (from the EVAP two way valve to the purge valve) and the other is the "Tank Side" (from the EVAP two way valve to the fuel tank). There is 0.04 inch leak detection and 0.02 inch leak detection. If the 0.04 inch leak detection results are OK, the 0.02 inch leak detection runs. The P1457 code is detected when the EVAP system has a very small leak.

P0107 HONDA - Manifold Absolute Pressure Sensor Circuit Low Voltagehttp://engine-codes.com/p0107_honda.htmlForum CodePossible causes- Manifold Absolute Pressure harness is open or shorted
- Manifold Absolute Pressure sensor poor electrical circuit connector
- Faulty Manifold Absolute Pressure sensor
- Faulty Engine Control Module (ECM) When is the code detected?An excessively low voltage from the sensor is sent to ECMSymptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Engine rough idle
- Engine hesitation
P0107 HONDA Description The Manifold Absolute Pressure sensor provides instantaneous manifold pressure information to the engine's Engine Control Module. The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion. A fuel-injected engine may alternately use a Mass Air Flow sensor to detect the intake airflow. A typical configuration employs one or the other, but seldom both.


In some vehicles the absolute pressure sensor is built into ECM. HONDA Technical Service Bulletins for P0107 code1999 HONDA ODYSSEY Electrical System 2000 HONDA ODYSSEY Electrical System1998 HONDA ACCORD Electrical System 1999 HONDA ACCORD Electrical System 2000 HONDA ACCORD Electrical System 2001 HONDA ACCORD Electrical System 2002 HONDA ACCORD Electrical System 1996 HONDA CIVIC Electrical System 1997 HONDA CIVIC Electrical System 1998 HONDA CIVIC Electrical System

Found this for you on the web. Good luck.

c/p;

What is code 43?

Code 43 is "fuel supply system."

This code will trip when the ECU and the readings from the o2 sensor don't get along(in layman's term or easy enough for Si Speed to understand ) read the above two threads).

How to diagnose and fix?

First things first, when was the last time you changed your O2 sensor? Start by replacing that first because most likely, that's the main culprit. Now, you may wonder why doesn't the CEL indicate code 41(heated o2 sensor)? Usually when the o2 sensor is completely dead, that code will trip. Also, even though the o2 sensor is working, the voltage or ground isn't 100% Because of that, it will correlate with code 43.

If replacing the o2 sensor did not help code 43 to disappear, next thing is to replace your fuel filter. A clogged fuel filter will also trip code 43.

Next up, did you install an aftermarket Fuel Pressure Regulator? I have a few friends with 3rd gen Preludes and both of them installed aftermarket FPR's and they too, trip code 43. Him and a lot of people who install aftermarket FPR's mess with the PSI and that will cause code 43 to appear(on a stock ECU mind you). Bring it back to stock PSI to help fight code 43.

Those are the 3 main culprits that will cause code 43 from my experiences. Injectors, spark plugs & wires, most likely anything "fuel' related that isn't working properly will also cause code 43.

code 43 is for a bad oxygen sensor. sensor located on a-pipe.

HI. The codes and their respective definitions are below:

41 - Primary oxygen sensor heater circuit fault(replace the failed sensor)
43 - Fuel supply system fault(Check all fuel system related components for faults)

did you replace your pcv valve? you should also change your air filter. that shoudl do it. be aware , sometimes it takes a few DIFFERENT types of engine conditions to reset the computer. sometimes the engine has to reach a certaain temp and maintain (at some interval) , then be turned off for a certain duration of time to reset.

"To located the codes that are stored in the ECM pull back the carpet on the passenger side floor pan. Turn the key in the ignition to on, not accessory but on but don't start the car. you should see an LED light flashing on the ECM below the dash on the passenger side where you pulled back the carpet. If there are any codes stored. A long flash equals 10. A short flash equals 1. So if you get 4 long flashes that would equal 40.Three short flashes would equal 3. Four long flashes + three short flashes = code 43. you may have multiple codes stored in the ECM and will repeat themselves over and over, the will be a pause in between codes. Here is a listing of the codes: Code 0 and 11 Electronic Control Module (ECM)Code1 Heated oxygen sensor ACode 2 Oxygen content BCode 3 and 5 Manifold Absolute PressureCode 4 Crank position sensorCode 6 Engine coolant temperatureCode 7 Throttle position sensorCode 8 Top dead center sensorCode 9 No.1 cylinder position sensorCode 10 Intake air temperature sensorCode 12 Exhaust recirculation systemCode 13 Barometric pressure sensorCode 14 Idle air control valve or bad ECMCode 15 Ignition output signalCode 16 Fuel InjectorCode 17 Vehicle speed sensorCode 19 A/T lock-up control solenoidCode 20 Electric load detectorCode 21 V-TEC control solenoidCode 22 V-TEC pressure solenoidCode 23 Knock sensorCode 30 A/T FI signal ACode 30 A/T FI signal BCode 41 Heated oxygen sensor heaterCode 43 Fuel supply systemCode 45 Fuel supply meteringCode 48 Heated oxygen sensorCode 61 Front heated oxygen sensorCode 63 Rear heated oxygen sensorCode 65 Rear heated oxygen sensor heaterCode 67 Catalytic converter systemCode 70 Automatic transaxleCode 71 Misfire detected cylinder 1Code 72 Misfire detected cylinder 2Code 73 Misfire detected cylinder 3Code 74 Misfire detected cylinder 4Code 75 Misfire detected cylinder 5Code 76 Misfire detected cylinder 6Code 80 Exhaust recirculation systemCode 86 Coolant temperatureCode 92 Evaporative emission control system" Actually the 92+ Accords did not have the little window on the ECU. You will need to locate the plug beneath the center console, where your right shin would be while driving. It is a two wire connector, you need to place a jumper wire from one side to the next, turn the key to "run" or "on" not start it...then count flashes of the engine light on the dash as mentioned above. Codes remain the same.

Hello there:
good question. what i would have to tell you is to have the car checked again to make sure that you get the same code than i would see if there is any warranty on this if not you will have to have a repair shop perform the repairs You might be able to get the part from autozone or cragen that will save you some money there
best regards mike

It may be the O2 sensor. I know it's not the fuel filter, spark plugs, spark plug wires, Vehicle Speed Sensor, Dis. cap, or TCM.

You did what thousands of people do they get a code and jump straight to replace a part no testing just guessing. code 43 is a fuel system problem code sure enough you absolutely need proffessional diagnostic help with this one you cannot go on another hondas code 43 because you can have two hondas exact same symptoms and even the color of the interior and have two completely different problems I realize it costs money to diagnose the problem but which is cheaper to pay diagnostic and only change the one bad thing or replace part after part then take it to be diagnosed and have them change one part?
Cmon Please do the right thing for your wallet honda is not a car for anyone but a professional to diagnose and fix.