New Vin Programmed 1996 96 Ecm Ecu Engine Computer 16208546 16244210 16229684 on 2040-parts.com

PLEASE READ ***ENTIRE*** LISTING

BEFORE YOU BUY.  THANK YOU.

Due to difficulties with some buyers who purchase our listings without reading the description, PLEASE NOTE:  If you have less than 10 feedback, you must contact us prior to purchase or we will refund and cancel the transaction without notice.  Thanks in advance for you consideration in this regard.

This listing is for a NEW GM PCM (powertrain control module) for all 1996-1997 Vortec Trucks with 4.3L L35 / 5.0 L30 / 5.7 L31 / 7.4 L29 engines.  Service numbers  16208546, 16229684, 16244210.  Hardware numbers are 16200785, 16213195.  All these PCMs are interchangeable with proper programming (regardless of what you hear from GM dealer or otherwise).  The service numbers are provided here to help you confirm compatibility with YOUR original unit.  The PCM you receive may have different (or no) service number on it.  This is NORMAL.  The PCM you receive is the correct PCM for your application.

This is the finned black computer with 5 plugs.  PLEASE CHECK your module service number BEFORE you buy.  If it is different or you are not sure, please find the correct module in one of our other listings or contact us with your VIN. 

NOTE:  New units do not include the small plate with the 2 screw that you see below, nor the plastic knock module under it.  You must swap these components over from the original unit.

It is your or your mechanic's responsibility to properly diagnose a faulty ECM.  Please do not contact us discussing your vehicle symptoms asking us to confirm your diagnosis that your ECM is bad.  We sell and program ECMs, we cannot troubleshoot your vehicle problems remotely.  If you misdiagnosed your problem and it was not a faulty ECM, we do NOT accept returns on that basis; the ECM comes with 30 day EXCHANGE warranty only.

IMPORTANT #1:  This ECM requires factory programming for your VIN.  What does this mean and why is this necessary?  This does not just mean a 17-digit VIN is "burned into the ECM".   The entire flash memory is erased and rewritten with the correct GM program for your vehicle (AND the VIN is changed to match yours).  That's why you can't just install any used ECM with matching service number; it may not work correctly or at all.  The problem is not just "the VIN" but the entire program has to exactly match all your vehicle specs -- engine, trans, axle/tires, fuel system, security system, emissions, many other options, etc.  The VIN only serves as a pointer to download the entire correct program from GM database to your ECM.

***** We will program this ECM with latest GM calibration for your VIN for free using licensed GM SPS subscription and genuine GM MDI interface.  Please message us with the purchase to include (1) your VIN and (2) your phone # for faster contact in case we require additional info.  Please confirm your VIN on autocheck.com 1st.  Mistakes/typos in the VIN will cause DELAYS in your order. *****

***** If you do NOT want the ECM programmed, you must instruct us explicitly to that effect or tell us what you want us to do.  If we do not receive a VIN or any communication with the purchase, we cannot process your order because we do not know what you require -- we will issue a refund and cancel the transaction.  Thanks in advance for your attention. *****

We are licensed users of exactly the same GM service programming system that GM dealers use.  In addition, we have many special programming tools  and years of experience custom mapping 1,000s of ECMs.  Custom mapping means we change various parameters in factory program to achieve specific results.

IMPORTANT #2:  This ECM will NOT be plug-and-play.  A programmed replacement ECM usually requires VATS (vehicle anti-theft system) relearn after 1st installation into your vehicle.  If VATS relearn is required, engine will NOT run until it is performed, CORRECTLY.  For VATS relearn instructions, click HERE.  AFTER vehicle is running, CASE (crankshaft angle sensor error) relearn may also be required -- this is indicated by DTC (diagnostic trouble code) P0315 or P1336.   CASE relearn requires a special scan tool such as GM Tech 2, and cannot be performed manually.  If any of this is unclear, please google "GM VATS relearn" and "GM CASE relearn".  Relearns are YOUR responsibility.

***** If you want to the ECM to be truly PLUG-and-PLAY by avoiding either or both relearns, we can disable them for $75.  The ECM will then be PLUG-and-PLAY; you just install it and start the vehicle.  Disabling the VATS does defeat the theft-deterrent system, so choose accordingly.  Disabling CASE relearn (the bigger headache of the 2 because it cannot be done manually) is harmless -- misfire detection is NOT compromised.  Ebay sellers who say otherwise in their listings are spreading misinformation deliberately or don't know what they are talking about.  This is done to discourage you to buy from us for special programming options that they can't offer (if they could they would, instead of telling you it's "bad for you").  Full custom programming is also available for $250 (performance/economy/cams/swaps/etc).  Contact us for details. *****

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SHIPPING:  FREE USPS priority mail shipping to USA (2-3 business days).  Processing is 1-2 business days, i.e., that is how long it takes to ship the ECM.  USPS Express mail (generally overnight depending on your location) available for additional $35, please inquire and separate paypal bill for express mail will be sent.  The processing time (1-2 business days) does not change, just shipping transit time.  We do not ship on weekends.

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GUARANTEE:  90 day EXCHANGE/REPLACEMENT warranty only.  By purchasing this listing you are acknowledging that you have read, understood and agree to all the terms and conditions herein.