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Header install & miss fireing

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Old Jul 30, 2005 | 09:14 PM
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Default Header install & miss fireing

Just installed Dynotech Headers & now the engine service light is on & engine seems to be missfiring need help
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Old Jul 30, 2005 | 09:21 PM
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Check your wires again. Make sure they "snap" onto the plugs and coils. If the wires have a lot of miles on them they may need to be changed.
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Old Jul 30, 2005 | 10:36 PM
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Default header install

car has 31000 miles. how long does it take for the computer to reset itself for the headers? Mechanic seems to have left the rear O2 sensors loose. Need help
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Old Jul 30, 2005 | 10:56 PM
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Also check for any broken plugs. Some installers do not remove the plugs when installing headers = broken plug(s)
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Old Jul 31, 2005 | 05:02 AM
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My $$$$ is on broken damaged wires...they are easy to break/damage when pulling off which is why I went with new wires after install and damage is hard to see.....I would say screw all the hassle and buy new wires....
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Old Jul 31, 2005 | 09:00 AM
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Originally Posted by mlg44
car has 31000 miles. how long does it take for the computer to reset itself for the headers? Mechanic seems to have left the rear O2 sensors loose. Need help
You should not notice any drivability problems with just headers and make sure all of the o2 sensors are tight.
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Old Jul 31, 2005 | 11:38 AM
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Originally Posted by runamuk
You should not notice any drivability problems with just headers and make sure all of the o2 sensors are tight.

and installed in the right holes....not crossed up
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Old Jul 31, 2005 | 01:32 PM
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Originally Posted by Face
Check your wires again. Make sure they "snap" onto the plugs and coils. If the wires have a lot of miles on them they may need to be changed.
your exhaust sounds great. whats the setup?
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Old Jul 31, 2005 | 02:52 PM
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Originally Posted by 427CPE
your exhaust sounds great. whats the setup?
Thanks. Kooks 1 3/4 headers, 3" offroad X, to B&B PRT's. Stage II heads and a 230/236 cam also really help the sound.
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Old Jul 31, 2005 | 09:05 PM
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Default header install

Thanks Guys. Problem solved. Had burnt wires on one rear O2 sensor & my mechanic had all the O2 sensors crossed up. Thanks Pewter99 for that thought.
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Old Aug 1, 2005 | 03:40 PM
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Originally Posted by mlg44
Thanks Guys. Problem solved. Had burnt wires on one rear O2 sensor & my mechanic had all the O2 sensors crossed up. Thanks Pewter99 for that thought.
Glad you got it fixed...I did the same thing, had the O2's crossed up and caused cyl#1 to misfire.
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