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Matt
Matt, Engineer
Category: Honda
Satisfied Customers: 20602
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
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84 honda accord Engine starts but shuts down rapidly after

Customer Question

84 honda accord Engine starts but shuts down rapidly after 30 seconds
Submitted: 9 months ago.
Category: Honda
Expert:  Matt replied 9 months ago.

Hello

this sounds like a lack of fuel and could be a lack of fuel pressure from the electrical pump at the tank.

If the connections to the pump are corroded or damaged then the pump could stop at any time or could not be running at full speed. Check that its relay switches in and out and the relay contacts are clean and bright – replace the relay if in any doubt and do the same for the fuse,

Ideally measure the pressure at the inlet to the main engine fuel distributor (should be 5 to 5.8bar) and if this is low check the pump as described and also consider changing the fuel filter as if this partially blocked this too will reduce pressure.

style='font-size:10.0pt'>you can check each sensor's function by plugging the two output wires into an AC voltmeter and spinning the wheel quite quickly, you should get a voltage signal that increases with rev's.

Its possible that the fault is only a bad connection to one of the wheel sensors.

This may be remedied by removing each wheel in turn and unplugging each sensor and cleaning the contacts with a squirt of electrical contact cleaner. Then refitting.

Expert:  Matt replied 9 months ago.

Hi

do you still need help?

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