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Car Forum / Honda Cars / December 2006Honda Accord - New Spark Plugs caused Check engine light on
Hi all, I have 1999 Honda Accord Ex, 4 Cyl. It has 90k miles on it. I just changed the spark plugs as required in 90k service. I installed Honda recommended NGK spark plugs. After I changed the spark plugs, the check engine light came on. Did any one encounter similar problem or has idea as to why this could happen. I also tighten the plugs as it says, not loose and not to tight. Thanks for your help. jp It's best to goto AutoZone or your other local parts store that helps you read the codes with their OBD II reader. See what the code is and let us know. It's possible that a plug doesn't function properly, is incorrectly gapped or misfired because of the plug wires. > Hi all, > [quoted text clipped - 6 lines] > > jp Yep, but if you live a long way from anyone with a code reader, try this trick. Sometimes a vehicle will throw bogus codes, for no reason that anyone can determine. Disconnect your battery for a few minutes and hook it back up again. It probably needed the terminals cleaned anyway. If the check engine light stays off, you are home free. Also, did you connect all the spark plug wires firmly? A loose plug wire can make the light come on. Earle > It's best to goto AutoZone or your other local parts store that helps > you read the codes with their OBD II reader. See what the code is and [quoted text clipped - 13 lines] > > > > jp > Yep, but if you live a long way from anyone with a code reader, try this > trick. Sometimes a vehicle will throw bogus codes, for no reason that > anyone can determine. Disconnect your battery for a few minutes and hook it > back up again. It probably needed the terminals cleaned anyway. If the > check engine light stays off, you are home free. One of the fuses in the fuse box under the hood in my 97 clears the ECM or computer - a lot easier to remove a fuse for a few seconds than disconnecting the battery - also my radio looses all presets and the anti theft device keeps the car from starting until I find the microbutton and press it. > > Yep, but if you live a long way from anyone with a code reader, try this > > trick. Sometimes a vehicle will throw bogus codes, for no reason that [quoted text clipped - 7 lines] > anti theft device keeps the car from starting until I find the > microbutton and press it. Where I live there is only one radio station, and it is pretty poor. Also, as I said you need to clean those terminals sooner or later. ;^) Earle Hi Earle: Ya when I installed new spark plugs, I checked to connect spark plug wires firmly. I checked it again right now and they seems to be fine too. As I said in the other response, I got the engine light turned off with help of AutoZone guy. I will wait for few days to see if it shows up again. I am still concerned as I never had that light come on before. Thanks again jp > Yep, but if you live a long way from anyone with a code reader, try this > trick. Sometimes a vehicle will throw bogus codes, for no reason that [quoted text clipped - 24 lines] > > > > > > jp Hey i don't know if this was fixed or not, but i was going over my Haynes repair manual, the trouble code you had P1457 - the book states EVAP control system leak near canister. just wanted to let you know. BeZeRk  Signaturebezerk19 http://www.automotiveforums.com I had the same problem was driving me crazy all this means is that there is some type of air leak in your fuel tank area bad gas cap is cheapest start here mine turned out to be torn fillerneck hose which connects gas tank to filler neck (where gas nozzel goes) take rear driver wheel off and stick your head there and wiggle gas filler neck hose + look at where connects to gas tank honda also are known to burn out a purge silinoid on the evap system burried on top of the gas tank / salt shorts them out if you think it is the evap systen best bet is to buy complete system on ebay vs individual part because this system is complex you have an emision system problem + will not affect performance just inspection good luck this problem could be very tricky > Hey i don't know if this was fixed or not, but i was going over my > Haynes repair manual, the trouble code you had P1457 - the book states [quoted text clipped - 10 lines] > > http://www.automotiveforums.com > Hi all, > [quoted text clipped - 6 lines] > > jp If you are going to do much work on modern cars then you need a code reader. Luckily for 1996 and newer models a generic reader will tell you most of what you want to know. Maybe you knocked a vac. hose loose, broke an ignition wire, or who knows what. Maybe the code is unrelated to the recent work. Without reading the codes out one is just shooting at ghosts in the dark. Handheld code readers should be available from local auto parts stores in the $100 - $200 range. John Thanks guys for your responses. I went to AutoZone yesterday and found out that the engine light is on due to the error code P1457. The computer interpreted it as - "can't build vacuum in the tank". I talked to AutoZone guy and he wasn't able to provide with further information. I requested him to turn off the check engine light, if he could and he did it for me. Subsequently, I called Honda dealer and they advised that it could be for many reason but the most obvious would be due to the gas tank - the cap might be loose. I checked the gas tank cap and it was tight. In fact, I had tank filled like two weeks ago and it didn't show up the light unto two weeks (so I wasn't convinced really) I will keep my fingers crossed and wait if the engine light shows up again. Anyone had this experience with this P1457 code before. Regarding the spark plugs, they are exactly the same spark plugs as Honda recommends in the manual. I have spark plug gap gauge. My model recommends 1.0 to 1.1 mm (0.040inch) and I set it exactly like that. Also not too loose not to tight as recommended. Is it possible that the O2 censer is old? Does Honda have an error code for o2 censers? Thanks, > Hi all, > [quoted text clipped - 6 lines] > > jp > Thanks guys for your responses. > > I went to AutoZone yesterday and found out that the engine light is on > due to the error code P1457. The computer interpreted it as - "can't > build vacuum in the tank". Probably there is a failing vacuum hose somewhere. To you other question, yes Hondas use oxygen sensors and yes a failure of one would set it's own code. John |
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