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Ivan
Ivan, ASE Certified Master Technician
Category: Dodge
Satisfied Customers: 4871
Experience:  ASE Master Tech. 20+ years experience. 9 years self employed. Expert on AUTOLAB Radio Show
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How to replace the computer on a 1998 Dodge Neon?

Customer Question

How to replace the computer on a 1998 Dodge Neon?
Submitted: 6 years ago.
Category: Dodge
Expert:  Ivan replied 6 years ago.

Ivan :

Hello and good evening. Which computer are you trying to replace, the PCM?

Ivan :

Your JA Expert,

Ivan :

Ivan

JACUSTOMER-c0tkpf5m- :

I don't know exactly. I saw it on craigslist for a decent price and thats what the owner told me.

Ivan :

I'll show you the location of the PCM which is the engine computer. If you find later that it is a different one, just let me know then and I'll upload the corresponding module. Give me a moment and I'll get you the info.

JACUSTOMER-c0tkpf5m- :

Ok, thanx. She said the car does'nt run because of it. Does that help any.

Ivan :

It very well could be.

Full Size Image

Ivan :

REMOVAL

  1. Disconnect negative cable from battery
  2. Disconnect positive cable from battery.
  3. Remove washer bottle neck.
  4. Squeeze tabs on Power Distribution Center (PDC) while pulling PDC up to remove it from bracket.
    • Lay PDC aside to gain access to PCM bracket screws.
  1. Remove screws attaching PCM to body.
  1. Lift PCM up and disconnect the 2 40-way connector
  1. Remove PCM.

INSTALLATION

  1. Attach the 2 40-way connector to PCM.
  2. Install PCM. Tighten mounting screws to 4 Nm (35 in lb) torque.
  3. Install PDC by pushing down into brackets.
  4. Install washer bottle neck.
  5. Connect positive cable to battery.
  6. Connect negative cable to battery.

NOTE: Use a DRB or equivalent scan tool to reprogram the new PCM with the vehicles original identification number (VIN) and mileage.

  • If this is not done a diagnostic trouble code (DTC) may be set.
Ivan :

Use this for now. Let me know if you need more after you look at the car

JACUSTOMER-c0tkpf5m- :

She just told me, when it broke down that spark plugs kept blowing or just would'nt crank at all.

Ivan :

It may not need a computer. There are quite a few items that can be the cause. Take a look at the car and let me know what it does when you turn the key.