98 Gen 2.5 CEL Code P0421

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Re: 98 Gen 2.5 CEL Code P0421 [Re: OneTime] #1042021 02/17/12 06:14 PM

Joined: Jun 2002

Posts: 6,211

Apache Junction, AZ

JohnnyBfromPeoria Offline

Trail Leader

If the cat is bad the inlet and outlet temperatures will be vey close to the same. If it's good, the outlet temps will be higher than the inlet. Use a non-contact thermometer to check. Harbor Freight sells them.

John B.

Entire Thread
Subject	Posted By	Posted
98 Gen 2.5 CEL Code P0421	OneTime	02/15/12 03:11 AM
Re: 98 Gen 2.5 CEL Code P0421	fasteddy	02/15/12 05:09 AM
Re: 98 Gen 2.5 CEL Code P0421	OneTime	02/17/12 05:04 AM
Re: 98 Gen 2.5 CEL Code P0421	JohnnyBfromPeoria	02/17/12 06:14 PM
Re: 98 Gen 2.5 CEL Code P0421	OneTime	02/17/12 07:46 PM
Re: 98 Gen 2.5 CEL Code P0421	fasteddy	02/18/12 04:36 AM

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