Question about 2000 Volvo S70

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Check Engine light P1670

My 2000 Volvo S70 check engine light came on. I took it to my local garage he came up with the code P1670. He could not find a match to the S70 for it was the code for S40 gas top. Well the light is off now I was wandering if I have more problems???

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  • yadayada
    yadayada May 11, 2010

    no u got the whole thing, u are lucky.

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I have a 2000 Volvo S70 as well with the same code. Do you ever have trouble starting your car? I did and that's why I took it to the dealer. Appartently it's the code for the ignition immobilizer system in your car (part of the security system). Specifically, a part call the antenna ring. The antenna ring is the outer portion of your ignition switch on the steering column - the part that lights up and has the following printed on it: 0 - I - II - III. This part is actually a sensor that transmits the code stored in the microchip inside of your key. When this part goes bad it fails to transmit the correct key code to the computer, and cuts the fuel to the engine.

The dealer wanted to charge me $550 for a new antenna ring, two new keys, and software to program the car's computer with the new key codes. I purchased the antenna ring online for $50 and did it myself in 15 minutes - so easy. They claim that you can't replace the antenna ring without new software - lie! You only need the software if you are replacing the keys.

Car is running great.

Posted on Mar 30, 2009

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If the light is off---happiness! Quit worrying---that code could just be an intermittent oxygen sensor failure.

Posted on Mar 26, 2009

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I would start by checking the codes, and if at all possible, use Volvo's VIDA and DiCE interface to make sure you get the right codes. Some generic code readers can't read all the Volvo specific stuff.

That will get you closer to the actual problem.

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Regards,

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