No spark from ignition?

Tiny
JASON EDDY
  • MEMBER
  • 4 POSTS
Okay, so I swapped around the computers and the computer it though was bad wasn't and I know that because I put it into the other car I bought that's wrecked and it started just fine. But the car I'm trying to fix still has no spark. So could it be the chip in the key has failed? If so couldn't I just swap out the whole steering column with the one that is wrecked? But still starts again I used the computers from both cars to start it.
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Tuesday, October 20th, 2020 AT 12:29 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
When you try to start the car does the security light flash?
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Tuesday, October 20th, 2020 AT 12:29 PM (Merged)
Tiny
JASON EDDY
  • MEMBER
  • 4 POSTS
No it doesn't and I have the key fob it works as well as the alarm.
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Tuesday, October 20th, 2020 AT 12:29 PM (Merged)
Tiny
CAMMIES22
  • MEMBER
  • 1 POST
  • 2000 MITSUBISHI ECLIPSE
  • 2.4L
  • 4 CYL
  • MANUAL
  • 127,000 MILES
Car died while running want crank it turns over but no spark, checked harness, spark plugs, coil, packs, and all the computers we're stumped
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Tuesday, October 20th, 2020 AT 12:29 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Have you checked for injector pulses? Loss of spark accounts for less than four percent of cranks / no-starts. Loss of fuel pressure accounts for perhaps one percent of no-starts. 95 percent of no-starts are caused by a loss of fuel pressure, injector pulses, AND loss of spark.

The first step is to determine if the fuel injection relay is turning on. To do that, use a test light to check for 12 volts on the red wire of any injector. You might see the test light turn on for one second after turning on the ignition switch. What's important is if it turns on during engine cranking.

Heres a couple links that will help you figure out where you are losing the spark

https://www.2carpros.com/articles/car-cranks-but-wont-start

https://www.2carpros.com/articles/how-to-test-an-ignition-system

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor
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+1
Tuesday, October 20th, 2020 AT 12:30 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Lets run the codes to see what comes up. here is a guide:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please run down this guide and report back.
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Tuesday, October 20th, 2020 AT 12:30 PM (Merged)

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