Question about 1990 Cadillac SeVille

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E49 the e49 code does exist, my car is a 1990 cadillac deville. Ive looked it up on another website. under the code it says AIR management system error. I have access to diagrams and things but im not a super mechanic so they dont really help much. I dont even really know where alot of the parts are. I have a replacement oxygen sensor but I dont know where the other one is to replace it. or even if thats the problem. im just so confused really. lol

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Go to http://alldatadiy.com/ and buy a subscription for your vehicle. If you want to repair it yourself you will need this data. It is good for 1 year and has, testing and inspection guides, component locations, wiring digrams and a lot of info the DIY'er needs.  I am looking in all my code manuals and still do not see an e49. AIR is a system that puts fresh air into your exhaust so the emissions at the tailpipe are lower. It's an EPA mandated system. If you have to pass an emissions test in your state or county you will have to get them system woking properly. Check out alldata it is worth the 30.00.

Posted on Jan 01, 2009

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E49 code on cadillac deville 1990


Dante,

(Quote) I looked up code E49 and there is no such code.


The above quote is from my colleague named “txkjun”. With all due respect to him and his “Guru” status he is wrong. The code “E49” does exist, and it is an “AIR management system error".

At this time I would like to apologize for typing a word that didn’t belong in my response.

You see, when I said the code “E-49” “DOES NOT” exist I was responding to the answer that: “Txkjun” gave you.

I meant to say that the code “DOES” exist, but I simply typed in the word “NOT” by accident.

I'll get back to you with repair procedures in a few hours.

Thank You.
Peter.

Jan 01, 2009 | 1990 Cadillac Deville

3 Answers

::check engine like::E49::


If you really want to fix this problem yourslf then you will need to go to this site http://alldatadiy.com/ and buy a subscription for your car. It cost under 30.00 and is good for 1 year. They have test procedures, repair procedures, component locations, wiring diagrams etc, everything you will need. It is well worth the money. I looked up code E49 and there is no such code.  Do you know how ot pull up the trouble codes. Scan it again and tell me the correct code so I can help you.

Dec 30, 2008 | 1990 Cadillac Deville

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