Frequently asked questions
The questions customers ask us most. Don’t see yours? Call or text 812-510-3163, Monday to Friday, 8 a.m. to 5 p.m. Eastern.
Do I have to go to the dealer after I install it?
No. Before it ships, we program the unit to your VIN and reset its immobilizer memory. Bolt it in, connect the plugs and turn the key.
Will it work with my keys?
Yes. It works with the keys you have now, with no dealer and no locksmith. Before it ships, we reset the computer’s immobilizer memory and program it to your VIN, so it’s ready for your vehicle. Your vehicle’s own key system still has to be working.
How do you make sure it’s the right part?
Your VIN gets checked twice. When you enter it on the product page, we match it to the factory calibration (engine, transmission and emissions, not just engine size) and warn you right away if this part doesn’t fit. Before we program it, we check again. If anything doesn’t add up, we call or text you before it ships.
Which part number do I use?
The one on the label of your old unit. If it has an “Authorized Software Update” label, use that number: it replaces every other number on the label. Find your part number has pictures of where the labels are.
I don’t know my part number. Can you find it from my VIN?
Yes. Enter your 17-character VIN on our home page and we’ll match it to the right unit. Or call or text 812-510-3163 with your VIN.
Is there a core charge?
No core charge and no deposit. Keep your old unit or scrap it. Cummins diesel ECMs are the exception: to keep the one-year warranty, your original ECM has to come back to us within 30 days of delivery. A prepaid return label comes in the box.
What’s the warranty?
One year from the day it’s delivered, on every unit. There’s nothing to register: your order number is your warranty record. In the first 30 days you can send it back with no restocking fee. Full terms are on our Warranty page.
I installed it and it still won’t start. What now?
Call or text 812-510-3163 before you send anything back. Most no-start problems after a computer swap turn out to be something else on the vehicle, and we’ll help you check the simple things first.
What if I gave you the wrong VIN?
We reprogram the unit, but the round-trip shipping is yours. If we programmed the wrong VIN or the wrong calibration, we fix it and pay the shipping both ways. Check your VIN against your registration before you order.
How fast does it ship?
The same or next business day after you order, with free shipping anywhere in the US. Delivery usually takes 2 to 5 business days after it ships.
Do you ship outside the US?
Our website ships to US addresses only. Outside the US, you can buy from our eBay store, which ships internationally through eBay’s international shipping program.
When can I reach you?
Call or text 812-510-3163, Monday to Friday, 8 a.m. to 5 p.m. Eastern, or email sales@ecugurus.com any time. You can also send us a message on our contact page.