Won’t Start

[Cy]

My 1991 honda accord cranks will not start. I’ve changed plugs and when I attempt to start the car it cranks and I smell gas fumes.

Topic

[Trcustoms719]

Quoted From Third Gear:

That’s a good start. If he is smelling fuel then probably it is a spark issue. Although, malfunctioning injectors could also flood the engine and it will not start.

That’s what I’m thinking too, it has to be no spark or the engine is flooded.
He could pin the throttle to the floor to put it in clear flood mode while he cranks it to see if it will try to start then.

[Cy]

Thanks for the responses. I have a starting point. I post when I have more information.

[EricTheCarGuy]

Before you get too deep just try starting the car with your foot to the floor on the gas, sometimes those engines get flooded and loose all compression as a result, you might even go so far as to remove the plugs and let them dry out if they are soaked with fuel, while your at it you could check for spark, if you don’t have it I’ll put a video link in this post for you to look over. As you try to start the engine with your foot on the gas like that it shuts off fuel to the injectors to help ‘clear the flood’ to bring your compression back up and get some of that excess fuel out of there. Here is a link to the video if you end up having a no spark condition. Good luck and keep us posted.

http://www.youtube.com/watch?v=9K78XIhhjAQ

[Trcustoms719]

Every engine requires spark, fuel and compression to run. That’s what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

4) If all of these things check good, then you would need to do a complete compression test.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem

[Third Gear]

That’s a good start. If he is smelling fuel then probably it is a spark issue. Although, malfunctioning injectors could also flood the engine and it will not start.

[Author]

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