What's the 2003 honda element ecm location?

You'll find the 2003 Honda Element's engine control unit (ECU) located behind the glove box in Your vehicle. If You're going to replace this, You can usually find a used part on eBay for around a hundred bucks: I wouldn't go looking for a "new" one, given the age of Your vehicle: Those are likely to be heavily marked up refurbs! Some indicators that You need to replace the ECU are if the check engine light comes on seemingly with random diagnostic trouble codes, or You experience a great deal of engine stalling and/or mIS Firing, or juSTSeem to have erratic engine behavior or performance issues with it in general.