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how to changew ECU Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting Guest Anonymous Poster masterblastertnt@hotmail.com Oct 3, 2007, 9:52 AM Post #1 of 3 (1371 views) how to changew ECU Sign In Does anybody know how to change ecu on 2003 chevy impala? DrElectrics Enthusiast Oct 3, 2007, 2:16 PM Post #2 of 3 (1367 views) Re: how to changew ECU Sign In Dont even attempt it! Take it to a certified mechanic with a plug in. Changing and ECU is like brain surgery, there are a lot of factors and plug in that need to be assessed and installed for you car to go. way2old Veteran / Moderator Oct 3, 2007, 4:56 PM Post #3 of 3 (1365 views) Re: how to changew ECU Sign In You can change the ECM if you follow a few simple steps. First, disconnect the battery, both cables. Then tie both cables together for about 5 minutes. Then separate the cables. Disconnect the wiring to the ECM. Remove ECm. You may need to take both of them to a place that can "flash" (re-program) the new computer and there is a chip called a PROM in the old one that may need to be installed in the new one. After that is done you can return to your car and install. Be careful that the cables do not touch the battery terminals. Install the ECM in the mounting area, install wiring. Hook up battery. Positive first, negative laqst. You should be OK. Being way2old is why I need help from younger minds   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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