Where is the ECU on a 1990 dodge ramcharger with 318 enginge?

The Engine Control Unit (ECU) on a 1990 Dodge Ramcharger with a 318 engine is typically located under the dash, on the passenger side. However, it's not always in the exact same spot across all models and trim levels. You might need to look in the area of the passenger's side kick panel or further up under the dash near the glove box.

To be sure, I highly recommend:

* Checking your owner's manual: If you have it, this is the best resource.

* Consulting a repair manual: A Haynes or Chilton manual for your specific year and model will show a diagram of the ECU's location.

* Searching online forums: Search for "1990 Dodge Ramcharger 318 ECU location" on forums like Dodge Ramcharger forums to see if others have posted pictures or specific locations.

Keep in mind that the ECU may be slightly different depending on options and specifications. Be prepared to do some searching.