Skip the auto shop - Our mechanics make house calls

Q: Engine cranks but wont run. Power not reaching fuel pump

asked by on

I have a 2000 toyota avensis engine= 1.6 4afe that me and my brother mess about in. It was left sitting for 2 months with very little petrol. Last week i connected the battery and it started. I then turned it off, Quarter filled it with fuel and tried to start it again with no luck. I have tested the fuel pump on its own and it works. But i cannot get it to run when turning the key.i think it is a relay problem . What do you think is the problem ?

My car has a manual transmission.

A: This sounds like you may not have any power...

This sounds like you may not have any power going to the fuel pump relay. The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump your ECU actually connects one of the ground wires to complete the circuit and send power to the fuel pump. If the wires all have power running through them, then it is likely you have a faulty relay. The wire coming from the fuel pump is the other ground wire. I would recommend having an expert from YourMechanic come to your location to diagnose your wiring as this can be very difficult and time consuming without the proper wiring diagram.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Recharging a dead batter

Don't have the Ford Falcon running when you jump the cars. You should use the Falcon battery only with the jumper cables, by not having it running will limit surge voltage that may damage the Toyota. You should have no...

Q: AC compressor will not engage

Hello there, thank you for asking about your 1997 Oldsmobile LSS. If the relay and fuses that power the AC clutch are in good order, the problem may be in the side of the circuit where you command the AC...

Q: misfire under load

Hello there, many different faults can cause your 2008 BMW 135i to have a misfire under load. If there is a multiple cylinder misfire, there may be one of a few different faults going on. The most common faults would...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.