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2004 Dodge Stratus No fire no start

Tiny
GEARED
  • MEMBER
  • 2004 DODGE STRATUS
  • 2.4L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 100,000 MILES
When I started working on this car it had no fire.I diagnosed it to be the ecm. I changed the ecm with a used unit. The car fired right up and ran for 5 to 10 seconds and shut off I cycled the key and it started back and died again it done 4 or 5 times and then it stopped turning ove. I've changed the ecm 3 times with same results. I put the original ecm in and it spins over but no spark.
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Tuesday, October 7th, 2014 AT 7:41 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
Either something is supplying too much power to the ECM or there is a short causing the problem. Were there any trouble codes before you started the work?
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Wednesday, October 8th, 2014 AT 5:15 PM
Tiny
GEARED
  • MEMBER
  • 2 POSTS
No there was no codes and would not set a code with all kind of sensors unplugged. Could this be caused by anti theft? What is flashing the ecm?
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Friday, October 10th, 2014 AT 4:54 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
The security light will flash if it is related to the problem. As far as reflashing the ECM, basically it gets reprogrammed.
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Saturday, October 11th, 2014 AT 9:40 PM

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