My car start for few second and off.

Tiny
NOORISLAM
  • MEMBER
  • 2012 HONDA ACCORD
  • V6
  • 2WD
  • AUTOMATIC
  • 1,500 MILES
My car start for few second and then off. Can you help me why it is happening. I have change crank sensor. I have change fuel pump. I have change all the fuse and fuse boxes.
My is American specification.


best regards
Noorislam
noorislam@live. In
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Sunday, July 20th, 2014 AT 5:53 AM

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Tiny
WRENCHTECH
  • EXPERT
You don't mention if it starts back up immediately when it dies. If so, it will be very difficult to find the problem.

Here are the basics of what has to be done to find the problem.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

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.

Once you have determined which of these functions has dropped out,
you will know which system is having the problem.
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Sunday, July 20th, 2014 AT 7:30 AM
Tiny
NOORISLAM
  • MEMBER
Dear sir car is on for few second after few second engine was off. It is start perfectly but suddenly engine off.
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Sunday, July 20th, 2014 AT 7:56 AM
Tiny
WRENCHTECH
  • EXPERT
That doesn't change what has to be done. It just makes it more difficult. You still have to determine which function drops out first. This may seem impossible to you but it is the reality for the technician.
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Sunday, July 20th, 2014 AT 8:03 AM

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