The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

1G No Power to CAS

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Xit40

15+ Year Contributor
264
2
Nov 23, 2004
Weedsport, New York
So I have no power to my CAS on my 1990 Laser RS. The car has no spark and doesn't run. All other ignition parts (coils, igniter, wires, and plugs) check out fine. I have also checked the MPI relay and it works as it should. How do I go about testing the ECU?

Sorry if this is dumb but electrical stuff is the bane of my existence. Any help would be greatly appreciated. Thank you.
 
Take ECU out and open up and inspect. Of you smell like burnt or see anything leaking it's got issues. Or take out and send to ECMTuning to look at and fix. I would say it's the ECU or really really bad ground. Maybe source another ECU. Will the car even turn over/crank?
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
  • Wanted WTB 2g half rad
    ISO of a 2g koyo half rad or something equivalent.
    • Michael Wucher
    • Updated:
    • Expires
  • For sale Coilover Springs
    Used pair of Eibach coilover springs from an old set of Ground Control coilovers. 2.5" inner...
    • RamenPride
    • Updated:
    • Expires
  • For sale 4G63 Mitsubishi logo early valve cover
    Early Mitsubishi logo valvecover. “1990” All threaded holes are good. Has the 90 style vent...
    • Galant665
    • Updated:
Back
Top