OEM Engine Control Module · Programmed to Your VIN

Plug-&-play installation · Free returns · Lifetime warranty available

★ 20+ Years
In Business

✓ 1-Year
Warranty Included

↻ Free
Returns

⚡ Quick
USA Shipping

What You're Getting

A genuine OEM GM Engine Control Module (ECM/PCM) — fully tested, professionally remanufactured at our facility in Liberty, NY, and programmed to your VIN before it ships. No core charge upfront. No mystery box. The exact unit pictured is the unit you receive.

Every module is bench-tested on calibrated equipment, cleaned, and flashed with the latest GM software revision available for your application. We've been doing this since 2004 — over twenty years of programming GM engine computers, and we still do it one VIN at a time.

⚠ Important: Send Us Your VIN at Checkout

We program every ECM to your specific 17-digit VIN. After purchase, please send your VIN through the eBay message system or in the order notes at checkout. We cannot ship until we have it.

Don't have a VIN? (Project car, swap build, lost title?) Message us — we'll work with you.

Installation

Plug-and-play. Disconnect the battery, swap the module, reconnect, and start the engine. Most installs take under 15 minutes.

Note on crankshaft position relearn: Some applications may require a Crankshaft Position (CKP) Variation Relearn after installation. This is a quick scan-tool procedure (most shops do it for free or at minimal cost) and is performed once on first start-up. If you see a P0315 or P0335 code, this is what's needed — it's not a fault with the module.

We're available by phone, eBay message, or email if you have questions during your install. Real human support, same family-run shop.

Warranty — Standard 1 Year, Lifetime Available

Included automatically: 1-year warranty, no registration required, no fine print. If the module fails within 12 months of purchase, we repair or replace it at our expense. That's our promise — over 20 years and we've never walked away from it.

Want lifetime coverage? Easy. Within 30 days of receiving your module:

1.	Register your warranty online at our store
2.	Send us your old core within 30 days (return shipping at your expense)
3.	Done — your module is now covered for life

Return shipping is the buyer's responsibility — we keep prices lower this way instead of building it into every listing. Cores are reused or recycled, which keeps electronic waste out of landfills. It's a fair trade for lifetime coverage.

Why Auto Computer Wholesalers

▸ In-house programming. We don't ship to a third-party programmer. Your module is flashed in our shop, by our techs, on the day it goes out.	▸ Real inventory. The module in the listing photos is the module you receive — not a stock image of a different unit.
▸ Family-run since 2004. Same family, same shop, same standards. Twenty-plus years of GM engine computers.	▸ USA-based shipping. Orders ship from our shop in Liberty, NY once we have your VIN. You'll get tracking automatically.

Fitment

See the eBay vehicle compatibility table above for confirmed fitment. If your vehicle is not listed but the part numbers match, message us — we maintain detailed interchange records and can confirm fitment for many additional applications. Always verify the OEM part number on your existing module against the part number listed before purchase. The part number on your old module is the most reliable fitment check.

Shipping & Returns

Shipping: Free domestic shipping. Orders ship from Liberty, NY once we have your VIN, and tracking is provided automatically.

Returns: Free returns within 30 days. If something's wrong, we make it right — that's been our policy since day one.

Questions? Send a message through eBay — we're here.

Auto Computer Wholesalers · Liberty, New York · Family-owned since 2004