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[quote=”EricTheCarGuy” post=53074]Honda’s almost never have fuel delivery problems and when they do it’s usually the result of aftermarket parts. Also, aftermarket distributors for Hondas have always been a problem. They cause misfires and also CEL codes for crank and cam sensors. If you have a misfire under load I would look to the ignition and in particular the distributor sub assembly.
It sounds like you might have the code 43 licked though. A loose connection will kill you every time. Keep us posted.[/quote]
Yes I agree Eric and I found out real fast to use OEM parts on Honda’s which I have for years now. I did find a corroded O2 wire at the C131 connector. I also found what I believe is a transformer manipulated ground inside the ECM that was not allowing the ECM to heat the O2 correctly.
Anywho, based on what I found I changed the ECM from a wrecked Accord and I have had no code 43 CEL in a week & a half or so and before it only took 40 miles or so to throw it. The fuel mileage is also back to normal as it suffered badly.
The Mrs.of the house is happy again, thanks guys…
[quote=”EricTheCarGuy” post=53074]Honda’s almost never have fuel delivery problems and when they do it’s usually the result of aftermarket parts. Also, aftermarket distributors for Hondas have always been a problem. They cause misfires and also CEL codes for crank and cam sensors. If you have a misfire under load I would look to the ignition and in particular the distributor sub assembly.
It sounds like you might have the code 43 licked though. A loose connection will kill you every time. Keep us posted.[/quote]
Yes I agree Eric and I found out real fast to use OEM parts on Honda’s which I have for years now. I did find a corroded O2 wire at the C131 connector. I also found what I believe is a transformer manipulated ground inside the ECM that was not allowing the ECM to heat the O2 correctly.
Anywho, based on what I found I changed the ECM from a wrecked Accord and I have had no code 43 CEL in a week & a half or so and before it only took 40 miles or so to throw it. The fuel mileage is also back to normal as it suffered badly.
The Mrs.of the house is happy again, thanks guys…
[quote=”FoMoCo” post=51661]That’s exactly what I said, in all the years I’ve been a technician I’ve only seen one other time a ECM throw a CEL because of a fuel cap on a Ford Aerostar in about 1987.
This Honda ECM hasn’t lit the panel up since the cap was changed and all the stated component values were in range.[/quote]
I found a really loose wire connection at the (C131 connector per factory manual) the harness power feed/signal side of the O2 sensor.
I knew this was a intermittent problem and that would explain the values in range when I put a meter on it, the vehicle wasn’t experiencing road vibration at that time.
[quote=”FoMoCo” post=51661]That’s exactly what I said, in all the years I’ve been a technician I’ve only seen one other time a ECM throw a CEL because of a fuel cap on a Ford Aerostar in about 1987.
This Honda ECM hasn’t lit the panel up since the cap was changed and all the stated component values were in range.[/quote]
I found a really loose wire connection at the (C131 connector per factory manual) the harness power feed/signal side of the O2 sensor.
I knew this was a intermittent problem and that would explain the values in range when I put a meter on it, the vehicle wasn’t experiencing road vibration at that time.
That’s exactly what I said, in all the years I’ve been a technician I’ve only seen one other time a ECM throw a CEL because of a fuel cap on a Ford Aerostar in about 1987.
This Honda ECM hasn’t lit the panel up since the cap was changed and all the stated component values were in range.
That’s exactly what I said, in all the years I’ve been a technician I’ve only seen one other time a ECM throw a CEL because of a fuel cap on a Ford Aerostar in about 1987.
This Honda ECM hasn’t lit the panel up since the cap was changed and all the stated component values were in range.
[quote=”FoMoCo” post=50379][quote=”FoMoCo” post=49863][quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.[/quote]
OK, it looks like I’ll be checking several things guys. The ECM is throwing a code 43 (fuel supply system/O2 sensor) and then 9 quick flashes which indicates a CYP sensor and I’m not leaving out the possibility of a faulty ECM because it is a 1995 Accord after all.[/quote]
Alright fellows, the ECM, internal distributor components and O2 sensor & circuit checked good.
What would you guys think if I told you that the fuel tank cap was throwing the code after all of this troubleshooting.
[quote=”FoMoCo” post=50379][quote=”FoMoCo” post=49863][quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.[/quote]
OK, it looks like I’ll be checking several things guys. The ECM is throwing a code 43 (fuel supply system/O2 sensor) and then 9 quick flashes which indicates a CYP sensor and I’m not leaving out the possibility of a faulty ECM because it is a 1995 Accord after all.[/quote]
Alright fellows, the ECM, internal distributor components and O2 sensor & circuit checked good.
What would you guys think if I told you that the fuel tank cap was throwing the code after all of this troubleshooting.
[quote=”FoMoCo” post=49863][quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.[/quote]
OK, it looks like I’ll be checking several things guys. The ECM is throwing a code 43 (fuel supply system/O2 sensor) and then 9 quick flashes which indicates a CYP sensor and I’m not leaving out the possibility of a faulty ECM because it is a 1995 Accord after all.
[quote=”FoMoCo” post=49863][quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.[/quote]
OK, it looks like I’ll be checking several things guys. The ECM is throwing a code 43 (fuel supply system/O2 sensor) and then 9 quick flashes which indicates a CYP sensor and I’m not leaving out the possibility of a faulty ECM because it is a 1995 Accord after all.
[quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.
[quote=”EricTheCarGuy” post=49846]That code almost always means you need an O2 sensor. Keep us posted on what you find.[/quote]
Thanks Eric, I did change the O2 sensor (Denso) because of a severe engine misfire that took it on out when the internal coil went bad. Sometimes when the engine is first started it will miss a little bit and then still throw the same code.
I’ve also noticed it will do this above 55 mph sometimes so I’m not sure if that is any significance or not yet except for the engines demand for more fuel at that RPM.
I haven’t had the time to check this out so I’m not sure if this is a fuel or ignition issue yet. I also need to make sure the O2 heater circuit values are in range in addition to a possible ECM pin test.
[quote=”college man” post=48104]see if this link helps.
http://ww2.justanswer.com/uploads/thebesthonda/2011-01-02_005054_dtc_43.pdf%5B/quote%5D
Now that’s the real technical information I need on this. I really appreciate that man.