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Check Engine Light Came On And Erased - Autos - Nairaland

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Check Engine Light Came On And Erased by camary(m): 6:56pm On Dec 15, 2011
Pls nairalanders, i need some help. I observed that the check engine sign came up on my Honda Accord 2004 V6. I took it for OBD scanning and the mechanic told me that the error code is for catalytic converter fault. He however removed the fault through his equipment and assure me that it ll never come up again or i should come back if it does. Should i just relax and be expecting the light to come up again? Also, i observed to be burning more fuel of late. The experts in the house, pls respond.
Re: Check Engine Light Came On And Erased by Nobody: 7:04pm On Dec 15, 2011
^^^ One word of advice - never erase a fault, without first writing down the code, and its definition.

As for your higher than normal fuel consumption, I'd say the fault is still there - a faulty oxygen sensor. Get your car scanned again, and post the results here.
Re: Check Engine Light Came On And Erased by camary(m): 7:35pm On Dec 15, 2011
Siena:

^^^ One word of advice - never erase a fault, without first writing down the code, and its definition.

As for your higher than normal fuel consumption, I'd say the fault is still there - a faulty oxygen sensor. Get your car scanned again, and post the results here.

Thanks Sienna for the response. I observed the abnornal fuel consumption some weeks back (abt 6km/litre or less). I was thinking of servicing the fuel injector before the check engine sign came up today for the first time. I mmediately went form the scan and was told the culprit of the check engine sign ON is as a result of catalytic converter fault. The mechanic then cleared the fault and it has not shown up til i got home. What do i do, plllsssssssss.
Re: Check Engine Light Came On And Erased by Nobody: 7:48pm On Dec 15, 2011
^^^ I would get your car scanned again.

As for servicing your injectors, there's no such thing, at least not in the Nigerian sense. If they're tired - poor spray pattern, leaking seals, cracked pintle cap etc, then they're disassembled by a fuel injector specialist, fitted with new seals, metering needles and pintle caps. They're then ultrasonically cleaned.

Of course, the injectors have to be tested for flow and spray pattern. If they're worn, it may be cheaper to replace them with new ones.

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Re: Check Engine Light Came On And Erased by camary(m): 8:09pm On Dec 15, 2011
Siena:

^^^ I would get your car scanned again.

As for servicing your injectors, there's no such thing, at least not in the Nigerian sense. If they're tired - poor spray pattern, leaking seals, cracked pintle cap etc, then they're disassembled by a fuel injector specialist, fitted with new seals, metering needles and pintle caps. They're then ultrasonically cleaned.

Of course, the injectors have to be tested for flow and spray pattern. If they're worn, it may be cheaper to replace them with new ones.

I ll be travelling with the car tomorrow and may not have time for another scan until when i'm back next week. I know i'm going to drain my cash on fuel bt hope the continue usage with this condition ll not affect the performace of the car. Come to think of it, i sometimes felt pressurizing the acceleration pedal which i sense also drain fuel. SIENNA, what do u think.
Re: Check Engine Light Came On And Erased by Nobody: 8:33pm On Dec 15, 2011
camary:

I ll be travelling with the car tomorrow and may not have time for another scan until when i'm back next week. I know i'm going to drain my cash on fuel bt hope the continue usage with this condition ll not affect the performace of the car. Come to think of it, i sometimes felt pressurizing the acceleration pedal which i sense also drain fuel. SIENNA, what do u think.

Bro, I don't understand your query (the highlighted part).
Re: Check Engine Light Came On And Erased by camary(m): 8:47pm On Dec 15, 2011
Siena:

Bro, I don't understand your query (the highlighted part).

i feel periodic stiffness on the acceleration pedal (throttle) especially taking off from slow speed during hold up. Does this also affect fuel economy
Re: Check Engine Light Came On And Erased by Nobody: 8:06pm On Dec 16, 2011
camary:

i feel periodic stiffness on the acceleration pedal (throttle) especially taking off from slow speed during hold up. Does this also affect fuel economy

Every vehicle will use more gas when pulling away from standstill, this is when the engine is under the most load. Which is why your engine will use less juice cruising at a constant speed of 70 mph, than in stop-start traffic in the city.

The stiffness in your gas pedal won't have any bearing on fuel economy. If it's unacceptably stiff, then you'll need to check the throttle quadrant (the lever on the throttle body that the cable attaches to). Grease any pivot points. Also worth checking the cable routing - if it's rubbing against anything, it'll be stiff.

It's also possible the cable has frayed, with bits of wire catching the inside of the tube it's enclosed in. I would disconnect it from the throttle quadrant, and try gently pulling the cable towards the engine side. Then slowly depress the gas pedal. It should be smooth and light, with no connection to the throttle quadrant. If it feels rough and sticks, replace the cable.

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