Very hard to start

Tiny
REFI
  • MEMBER
  • 1995 CHEVROLET ASTRO
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
When I finally get started very very rich, doesn't hold idle-changed Spyder, igniting mod on distributor. What do you recommend?
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Sunday, May 16th, 2021 AT 7:55 AM

1 Reply

Tiny
KASEKENNY1
  • EXPERT
This could be a couple things but we need to start with what it does when it does not start.

I assume it just cranks but what happens if you hold your foot to the floor and then crank the engine? This is called a clear flood start so it will cut the fuel and if the engine starts then we do have an over fueling issue.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

Below is a diagram of the central multiport fuel injector (CMFI) which is what I assume you replaced? Then when you say it has a mod on the distributor, what exactly would that be?

Have you removed the spark plugs and look to see what they look like?

Below is a also, a chart that will help with this. Let us know what questions you have and what you find. Thanks
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Monday, May 17th, 2021 AT 6:36 PM

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