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Step 8: Locate the damaged solder causing the K40 relay problem300 viewsIn the upper left hand corner of the circuit board you will see three solder points right next to each other. Any one of these may be bad. You need to remove the bad solder of any damaged connection, and re-solder. In the photo you will see that my K40 connection was damaged only on the right most of the 3 connections. The photo isn't great, but there was virtually no solder on this connection, and it looked dirty and almost as if it was slightly burned. The other 2 connections looked clean.
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Step 6: Remove the computer from his housing275 viewsOnce you have the computer module out of the car, you need to bring it inside where you will remove the outer housing to expose the circuit board. Take a small flat head screw driver and gently separate the container from the circuit board.
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Step 7: Pull the circuit board from it's housing267 viewsOnce you have separated the circuit board from the housing, gently pull it up and out. I recommend pulling out the 40 amp fuse at this point too. You may want to clean up the contacts of the fuse, I found mine to be slightly dirty. Take a screw driver or wire brush and lightly scrap away any dirt or corrosion to make the fuse conntacts shiny. Now look in the upper left hand corner of of the circuit board and follow step 8.
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Step 5: Remove the 5 electrical plugs connected to the computer module263 viewsYou will notice there are 3 black connectors, and 2 gray connectors. Remove each connection gently. They may be on there tight, but all you have to do is pull them straight up. Don't worry, each connection is unique so you don't need to keep track of which connection goes where, it's pretty self explanatory.
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Step4: Locate the computer containing the K40 relay257 viewsOnce you have taken the lid off, look for the bright orange 40 amp fuse. The module it is plugged into is the computer we need to pull out. To the right of the module is a brass clip holding the module in place. Pull back the clip and proceed to gently pull up and out the computer module.
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Just plain gay256 viewsI don't even want to know what happened next.
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Step 9: Solder the bad connections254 viewsNow it's time to clean up the broken solder points and re-solder. First take your hot soldering iron and do your best to remove the existing solder on the bad points. Now take a small screw driver or something with a tiny sharp edge and do your best to scrape around the points you are fixing to clean up what solder is left. They key here is that you want all the points to be shiny and 'clean' looking so that when you add new solder it has something to stick to and creates a solid connections.
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Step 10: You're done!249 viewsIn this photo look at the top left 3 soldered connection points. The right most solder point of the three is the fixed connection. Once you have re-soldered the bad points, give your new solder a minute to harden and cool. Now you can start putting everything back together! Be sure to re-connect your 40 amp fuse. Also, once the computer is back in the car, don't forget to re-connect your negative battery terminal. Now start your car. Your check engine light should be off. You may notice the car is sputtering a little as you rev the motor, don't worry this is normal. Give the car's computer a minute to recognize the K40 relay has been fixed and it will re-adjust your fuel settings appropriately. It took my car about 3 minutes or so. Also note, you may need to re-enter the 5 digit code into your stereo since you disconnected the battery.
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Step 3: Remove the lid to the box containing the K40 relay242 viewsThere are 4 screws holding the lid on. Loosen these screws. The lid pops right off.
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The Compensator228 viewsTake a guess what the sword is compensating for?
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Gangsta Airsoft216 viewsWhen airsoft goes horribly wrong.
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Step 2: Remove the negative terminal connection on the battery214 viewsThis is probably the most important step. Remove the negative terminal connection on the battery as shown in the lower left hand corner of the photo. If you don't do this, you are probably going to short something out.
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