No Start, Fuel pump does not activate. - 1987 Honda Prelude

This sounds like a fuel system priming issue. When you first turn the key to the ON position (not cranking yet), you should hear a three-to-five second buzzing noise. This is the fuel pump running to pressurize the fuel system for cranking. This is controlled by the PCM and is relay activated. Once the vehicle starts and oil pressure rises, then the fuel pump is activated by the PCM via a different relay. If you can't start at first, what is probably happening is that the prime is not occurring and you have to crank it until the PCM sees oil pressure and then fires off the fuel pump. It could be PCM wiring or a bad fuel pump prime relay.

Hi there try and bridge fuel pump relay power supply to see if pump activates .check fuel pump ground and power supply when cranking . Possible fuel pump or relay failure.Do check all fuses.

have u ck spark,,fuel pump reley,,

hi no it does not have a reset button first check if the fuel pump is activating when you try to start if not check fuses and relay you will find them under the hood in the fuse box and if the pump is activating check for fuel pressure and check for pulse in the injectors good luck

fuel pump has defective check valve check fuel pump m and fuef tank and replace.

Have you checked that the inertia switch has not been activated somehow?

look in the manual for the fuel pump reset switch

If it has an electric fuel pump in the tank then the rollover switch may have been activated. The reset should be in the trunk.

this one's tricky. you have to drop the fuel tank and clean the grounds for the fuel pump (such a mess to do) and make sure that the ecu and battery are properly grounded, as well as cleaned. if the problem persists, you may have wiring damage to the fuel pump or the ecu could just be freaking out.

fuel pump operation on your impala is controlled by the computer. It activates the fuel pump relay when ignition is turned on, but only for a few seconds. This is called the fuel pump prime. When the computer senses a crank signal (upon start up) it will activate the fuel pump relay constant. I have found more problems with the fuel pump relay than anything. Vapor lock will not cause a no start unless it is in the fuel lines. GM systems use the manifold air temp sensor to allow for quick starts when hot......increases fuel injector on time. An intermittant fuel pump relay or bad pump will cause a no start any weather.