3.8 cylinder 6 misfire
#1
02-21-2018, 10:28 AM
3.8 cylinder 6 misfire
Just had all o2 sensors replaced when my headers were installed. Installed new 8.5mm wires 90 degree boots and all new plugs. Ran great and started stuttering a little. Ran code and its a cylinder 6 misfire. I know the front 2 coils were just replaced 300 miles ago. Would coil 3 be my possible issue?
#2
02-21-2018, 01:34 PM
A common mistake to make is assuming a new part can not be defective. I spent a good part of my career working on cars with less than 500 miles on them and they and most of the time it came back to defective parts.
If you think it may be a coil then just switch the coils and see if the error follows. Don't be surprised if its a cracked plug.
If you think it may be a coil then just switch the coils and see if the error follows. Don't be surprised if its a cracked plug.
#3
02-21-2018, 09:20 PM
Join Date: Mar 2009
Location: Tokeland, Washington
Posts: 21,639
for future reference, many headers have a coating on the inside that when burned off can mess the 02 sensors up. best to run the old ones for a few days then install new.
#5
03-02-2018, 10:01 PM
Ok so i replaced coil wires and plugs .still a constant misfire. My buddy said his ecm was going out and was causing his .ive also heard the icm... And advice cause i love my car but this has been constant for months to where my dd is useless
#6
03-02-2018, 11:49 PM
Is it still cylinder 6 code? Have you tried swapping coils and fuel injector to see if the error follows anything?
Last edited by Gorn; 03-02-2018 at 11:52 PM.
#8
03-03-2018, 05:52 AM
Join Date: Mar 2009
Location: Tokeland, Washington
Posts: 21,639
if you havent yet go here and download the factory service/shop manual. http://www.mediafire.com/?40mfgeoe4ctti 2000 svcman will be same as yours.
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