Question about 2000 BMW Z3

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Hello my toyota corolla 1.6 02 petrol had the engeen control light on,whent to garagge and they told me its a code P0240, catalytic converters&ECU , but when I fidled around with cables connected to ECU the light switched off. The engeen is runnng really well didn't notice any prolem other then this. Please can you tell me if the problem is really with ecu or just the cables around? Is it possible?

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It is possible that the cable was just loose but would keep an eye on it

Posted on Jun 04, 2009


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One thing I need to add if you pull the cable off the battery and your radio has a antitheft program in it you will have to provide a code to get your radio working again.

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Hello! My long time (recently not so helpful) mechanic told me my engine light was on due to an O2 sensor code. This lasted at least a year and now the car is giving a code for the Cat Converter. Do you...

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Check engine light comes "on"

OK, If I understand your question correctly, Your Check Engine light is coming on and you are getting a Diagnostic Trouble Code (DTC) P0240 and we are talking about a 2000 Honda Civic DX with a 1.6L engine? If this is not correct, please let me know.

DTC P0240 is not a valid code for the vehicle listed above. Are you sure we are not talking about DTC P0420? If this is the case, then your catalytic converter is not working and most likely will need to be replaced. If you previously had fuel system problems, this is what most likely destroyed your catalytic converter - especially if the vehicle was driven fo some time with the fuel system problem. It is VERY common for this code to come up after other engine performance problems have been repaired. The reason for this is because the computer will not run the catalyst monitor if there are other problems in the ignition or fuel systems. So as long as these other problems exist, the computer has no idea what the condition of the catalyst is. Once the other problems are fixed, then the catalyst moitor will run. If the computer finds that the catalyst has been damaged and is not performing as designed, it will set DTC P0420.

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Check engine light came on on my 1998 Honda Accord and gave a p0240 code. What does this mean?

P0240 code is related to faulty catalytic converter.It has to be checked and replaced. Located at the front of your exhaust line. To get this part you can get it from the online stores dealing with honda car parts. click on the link below to order the part if required.--------------- -------- thanks.helptech.

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I have a 2000 Corolla. Engine light was turned off by mechanic but came back on in 1 week. Should the catalytic converter be replaced?

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Hello. Welcome to FixYa. Please allow us to assist you...

YES! The P-2716 code IS a common problem.

I am glad that you did not pay for the repair, because the repair is a new computer.

Fortunatly for you, there is a technical service bulleting from Toyota; they will replace it for FREE!

Call your nearest Toyota dealership, tell them you have a P-2716, and make an appointment. They will replace the Electronic Control Unit (the computer) at no charge.

The part is roughly 950 dollars.

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in reality nothings happen, and your saying what do you need to do so you will not encounter this problem again well honestly you cant depend on life on catalytic so i suggest to do your general tune up like changing spark plug,wires,check timing,fuel filter,oil change the way they should be change so it helps the engine burn near stoichiometry because during the oxidation happening in your catalytic if your engine rich or lean or misfiring it could cause a defective catalytic converter.

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