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What dose code 43 mean - 1991 Toyota Pickup

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91 3.1 car starts and runs fora minute then dies code 43 came up( fixed wire kn Sen.) now 21and 43 came up?


You didn't say what the make and model are, but if code 43 is a knock sensor issue I guess its a GM product.
Code 21 means the TPS voltage was too high, and code 43 means the knock sensor voltage was too high or too low.
Neither code would kill the engine. Just turn the warning light on.
If the throttle position sensor failed, you would get the effect of stalling on acceleration.
You may need to narrow down the possible causes to spark or fuel, and in the end it could be the engine computer. It could also be a relay or other electrical component.

Apr 08, 2016 | Cars & Trucks

2 Answers

My 95 eclipse is throwing codes 12, 31, 43, and 55 what do these codes mean?


12-cam shaft position Timing over retarded
31- HO2S heater Control Circuit Low (Needs a new O2 Sensor is what this is telling you)
43- HO2S Heater Control Circuit Low (Bank 1 Sensor 3)
55- HO2S Heater Resistance (Bank 1, Sensor 3)
All of those assume they are supposed to be preceded by a P00

If you are getting ODBI codes these are teh definitions you are looking for:
Code 12 Air flow sensor fault
Code 31 Knock sensor fault
Code 43 EGR fault
Code 55 AV valve position sensor

These may make more sense with that year model.

Jul 22, 2011 | 1995 Mitsubishi Eclipse

1 Answer

Blink codes 41 and 43 are coming up. What do these codes mean?


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)

Aug 12, 2010 | 1992 Honda Accord

2 Answers

What does the code 43 mean on a 1996 jeep grand cherokee and how do u fix it?


Trouble code P0043 means: HO2S Heater Control Circuit Low (Bank 1, Sensor 3)Hex code 43 is for a misfire.

DTC 43 indicates a cylinder misfire, but does not specify which cylinder is misfiring. To pinpoint which cylinder is misfiring, you need a scan tool and get the "P" code, as you can see in the chart below. So it is quite possible you're barking up the wrong tree.
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If you go to an Autozone they will scan the codes for you, if the CEL is currently on, and tell you the DTCs they find. That will get you closer to the problem.
I'm fairly confident that if you do a complete tune-up, spark plugs, spark plug wires, distributor cap and rotor, that the misfire codes will be taken care of. Be sure you read this, Dodge Ram 1500 Running Rough before replacing the spark plug wires, or if you have already replaced them.

Hope this help (remember comment and rated this)..

Apr 01, 2010 | 1996 Jeep Grand Cherokee

2 Answers

Key cycle check codes 12, 43, and 55 can anyone tell me what these are?


HI. The 12 code is a basic code that will be issued, when the battery is changed, or disconnected for a short time. This Will clear, after the car has been driven over a period of three days with a consistent flow of electricity through the engine CPU.

The 43 code is the result of a Peak primary coil current not achieved with max dwell time, or a cylinder misfire. This will, generally, be the result of a failed coil, or distributor cap(if equipped). Check the ignition control module for faults, if the vehicle is not equipped with a distributor assembly. Inspect the wires and plugs for ware, as well. This code doesn't specify the actual location , and which cylinder is misfiring, so check all coils, and plug/wires.

This 55 code is not an issue. This is just a place holder number, stating that the code read out has ended. This code dose not represent a fault. 55 = end of codes.

Dec 18, 2009 | 1996 Dodge Intrepid

1 Answer

Code 43


Hi. If you mean Honda Accord 2.2 1990-1993 eng.code F22A3 trouble code 43 is : HO2S-fuel supply system-circuit malfunction. Cheers

Dec 02, 2009 | 1990 Honda Accord

1 Answer

What does 12, 43 fail engine cods mean for 1997 dodge Ram mean


CODE 12 MEANS BATTERY DISCONNECT.WHAT IT MEAN THE PCM WAS DISCONNECTED WITHIN LAST 50 KEY ON CYCLE. CODE 43 MEANS -CYLINDER MISFIRE.OR IGNITION COIL PRIMARY CIRCUIT.

Aug 02, 2009 | 1997 Dodge Ram 1500 Club Cab

1 Answer

I am trying to find what the codes are for 1991 Olds Cutlass


Code 33 is the MAP senso, and code 43 is knock sensor.

http://www.obd-codes.com/trouble_codes/gm/gm-2-digit-codes.php

May 27, 2009 | 1991 Oldsmobile Cutlass Ciera

2 Answers

Code #12,43,43,43,72,55


code #43 is for a cylinder misfire, since there are 3 codes, this would mean there are misfires on 3 of the cylinders.
code #12 means the battery has been disconnected within the last 50 key cycles (nothing to worry about unless you didnt disconnect the battery)
code #55 is just a code to let you know it has reached the end of the list
code #72 means the catalytic converter efficiency is low.

knowing the P-code would help alot more.

there are a few ways you can start to diagnose this problem, change the spark plugs, wires, and coil pack. if it isnt this, then you can go more dramatic and change the catalytic converter because it might be clogged and therfor causing the misfire

Jul 15, 2008 | 1995 Dodge Neon

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