1993 Plymouth Laser wont start.

Tiny
JERDERP
  • MEMBER
  • 1993 PLYMOUTH LASER
  • 1.8L
  • 4 CYL
  • 2WD
  • MANUAL
  • 151,461 MILES
I have a 93 plymouth laser with the 1.8 sohc base model im having trouble getting it to start it was running but quit over the winter I changed the fuel pump cause of lack of pressure I change distributor and rotor I have spark and fuel but it still not turning on I dont smell gas when trying to start I dont think the injectors are opening at all but I did test injector plugs for power and it is getting power where am I going wrong
Wednesday, May 14th, 2014 AT 4:11 PM

13 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Will it start for a few seconds if you use starting fluid to start it?
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Wednesday, May 14th, 2014 AT 6:59 PM
Tiny
JERDERP
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  • 8 POSTS
When I spray starter fluid it sputters but doesn't turn on
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Thursday, May 15th, 2014 AT 6:13 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Have you removed the plugs to see if they are good and not wet with gas? Also, is the spark to the plugs a good hot blue snapping spark?
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Thursday, May 15th, 2014 AT 8:42 AM
Tiny
JERDERP
  • MEMBER
  • 8 POSTS
Plugs, wire, distrib/cap rotor, fuel pump and line are new. Ichecked if they're wet and there not but has a white blue spark, I checked the fuel rail and I am getting fuel to the injectors. I check injector pulse and they are getting the correct pulse but not opening im stumped and all I smell is the starter fluid no gas (scratching my head) :(
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Thursday, May 15th, 2014 AT 8:56 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
If you are getting power to the injector and no gas in the engine, that leads me to believe the fuel pump pressure is too low (even though it is a new pump, lines.) Also, the idea that it won't start with starting fluid has me concerned. Have you checked compression?
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Thursday, May 15th, 2014 AT 9:05 AM
Tiny
JERDERP
  • MEMBER
  • 8 POSTS
I did check compression 150psi or around there cant remember, fuel pump has very strong between 42 and 46 psi so I know the pressures right if it wont start off starter fluid what could the problem
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Thursday, May 15th, 2014 AT 9:14 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Either no spark or weak spark.
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Thursday, May 15th, 2014 AT 10:57 AM
Tiny
JERDERP
  • MEMBER
  • 8 POSTS
Weak spark sounds about right cause I can see the spark so if distrib/cap plugs and wires are new what else would I have to do to get a better spark?
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Thursday, May 15th, 2014 AT 12:51 PM
Tiny
JERDERP
  • MEMBER
  • 8 POSTS
Plus the plugs are still dry?
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Thursday, May 15th, 2014 AT 12:53 PM
Tiny
JERDERP
  • MEMBER
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Yeah I just went out to double check didn't spray anything in it try to turn it over and it sputtered but still no start I think its burning the ether I sprayed last time. I not a mechanic lol but im trying sorry for the rough info
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Thursday, May 15th, 2014 AT 1:18 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
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It could be a weak coil, bad crank sensor.
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Thursday, May 15th, 2014 AT 6:47 PM
Tiny
JERDERP
  • MEMBER
  • 8 POSTS
I guess ill change both and get back to you.
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Friday, May 16th, 2014 AT 11:09 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Hi:

I was thinking about your problem. You know, it doesn't make sense to me. If the spark was too weak to ignite the fuel, the plugs should get wet after trying to start it. If the plugs are staying dry, I don't THINK your are getting fuel. Before you purchase anything, crank the vehicle a few times and then remove the plugs (all of them) to see if any are wet. If they are totally dry, they can't be getting fuel. Which leads me back the a pressure issue or injector pulse (power) issue.

Let me know.

Joe
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Sunday, May 18th, 2014 AT 7:55 PM

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