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2003 Honda Accord Question: Codes showed misfire in several cylinders after replacing plugs and coil packs s

 

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amyers78, Council Bluffs, IA, April 01, 2013, 09:47
 Rookie

Still running rough cleand erg cencor now what should be cheched

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  • Answer #1

    ziptie12 April 01, 2013, 18:29
     Master

    4 or 6 cyl.? Auto or manual?

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    amyers78, April 02, 2013, 00:39
     Rookie

    6 it's a 3.0 misfire in 5 it's new. Random miss in 2 4 6 all new too have also cleaned the erg censor auto

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    ziptie12, April 02, 2013, 04:25
     Master

    Hopefully you're using a scanner? Unplug EGR (electrical) and see if any change in misfire. Could be faulty valve.

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  • Answer #2

    arturo08 April 02, 2013, 01:53
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     Master

    rec. fuel system clean. ethanol treatment to 1 tank premium. ethanol blend in fuel causes build up in fuel system(possibly fouling injectors), combustion chambers, exhaust system and causes increased wear to spark plugs. fouled injectors can cause a misfire. injectors need to spray mist to fire properly. fouled injectors lose spray and tend to squirt(firing inconsistently: misfire).
    result will take drive time. hope this helps.

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    amyers78, April 02, 2013, 04:28
     Rookie

    Have unplugged erg and cleaned it Well also have put in the regular gas, gas mileage is very poor right now. Scanner shows the hard misfire in 5 and slight in 2,4,6

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    ziptie12, April 02, 2013, 18:53
     Master

    Is this a true scanner with live data or a code reader?

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    amyers78, April 02, 2013, 19:01
     Rookie

    I believe a code reader

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    ziptie12, April 03, 2013, 21:15
     Master

    Live data would be more helpful , with a case like this. Might want to have a shop scan it while it's running , to see what's going on.

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