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Code after LT headere instal

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Old Oct 18, 2010 | 04:55 PM
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Default Code after LT headere instal
2004 Cpe.

I installed Long Tube ARH, their high flow cat X-pipe but left the OEM exhaust and mufflers. Now I get code 420 TWC low efficiency bank 1. Is this the right header? Maybe the bolts need to be re tightened.
Thanks !
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Old Oct 18, 2010 | 05:48 PM
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Originally Posted by Silver48
2004 Cpe.

I installed Long Tube ARH, their high flow cat X-pipe but left the OEM exhaust and mufflers. Now I get code 420 TWC low efficiency bank 1. Is this the right header? Maybe the bolts need to be re tightened.
Thanks !
Bank 1 is drivers side.
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Old Oct 19, 2010 | 10:22 AM
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Thanks for the info.

What does the TWC describe?
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Old Oct 19, 2010 | 10:46 AM
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My 1st guess is wiring, the second would be the rear O2 is too far downstream now.
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Old Oct 19, 2010 | 12:03 PM
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Thanks for the reply.
My first guess was the right bank fittings should be checked to see if any of the bolts had backed out a little.
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