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So there I was driving to Target. The car was at good operating temp. It had a tank of gas. Then, while driving, the orange Check engine light came on. Frightened I never made it to Target, I did a U-turn and drove my car home. I got oyt the haynes Manual and ran to OBD stuff to find an error code. The code was 1-2-1, for my 92, 240 the book says that means that there is no signal to my Air Mass Meter. I checked in the bently book, same thing. Now I need to advice. Who do I go to to fix it, the Haynes book made it seem very expensive. I don't be believe its something I can do myself. I am not very handy with cars. Is this something a chain mechanic can do like Madis, or is this something I need to find a Volvo specialist to do?
 

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Re: Air Mass Meter OBD code (RobbyCU)

Clean the contacts on the mass air meter plug-ins.<p>Start the engine and let it warm to steady idle.<p>Unplug the mass air meter.<p>If no change in idle then the meter may be faulty.<p>Check the fresh air box for frozen thermo flap. If this flap is stuck in the "all hot air" position then the mass air meter is probably cooked.<p>Rebuilt meters are available for under $200 but be aware that these units are specific by model/year so don't waste your money in a salvage yard.<p>Here is a guide...<p><A HREF="http://www.ipdusa.com/ProductsCat.aspx?CategoryID=546&NodeID=3950&RootID=629" TARGET="_blank">http://www.ipdusa.com/Products...D=629</A><p>George Dill<p>
 

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Re: Air Mass Meter OBD code (gdill2)

Check the fresh air box for frozen thermo flap. If this flap is stuck in the "all hot air" position then the mass air meter is probably cooked.<p>anyone have a picture of exactly what this is, i'd like to check it out, but no one seems to post enough info as to the location of things
 

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Re: Air Mass Meter OBD code (obdh)

Stand at the driver's side looking at the engine. Near the battery is a plastic box containing the engine air filter, hot-air thermostat and air divider flap visible when the box is opened and the filter removed. Yes, it is much easier to remove with the battery out but you best know your radio code before disconnecting the battery. You will discover that one removal leads to another and soon the complete intake system is on the driveway. This is the time to check for air leaks, faulty vacuum lines/connections/hoses and also a good time to clean all electrical connection and grounds. You must be certain of NO air leaks in the intake system.<p>Once you login to Swedespeed go to<p><A HREF="http://forums.swedespeed.com/zerosearch" TARGET="_blank">http://forums.swedespeed.com/zerosearch</A><p>and search key words of your choice in the RWD Forum (swap between archive and recent) until you get the info you need.<p>Another option (if you have nothing elso going) is the search all posts participated in by gdill2 in the RWD forum and this will result in leads to Volvo 240 ramblings with pics and links to the 240 Volvo World.<p>like this...<p><A HREF="http://static.zoovy.com/img/jtoutfitters/W600-H200-Bffffff/12668261.jpg" TARGET="_blank">http://static.zoovy.com/img/jt...1.jpg</A><p>(hot air thermostat)<p>George Dill<br>
 
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