Hard start

CLIFF MTOMBENI

MEMBER
2006 CHEVROLET AVEO
1.5L
4 CYL
2WD
MANUAL
165,815 MILES

If you keep on cranking it floods. Keep putting fuel on the piston and its really heavy on fuel seems like too much pressure on the fuel rail. So when the injectors turn to open then they putting to much fuel. I have replaced MAP sensor, MAF sensor and coolant sensor. How can I bring down the fuel pressure since it has a built in regulator? It has a new pump as well. Please help.

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

We don't want to bring down the fuel pressure if that is not the issue. So we need to find out what the pressure is and then we can act accordingly.

Here is a guide that will help with this:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Also, how do you know it is flooding?

If it is flooding then the engine should start better if you use the clear flood method of starting. I attached the info below but basically you press the accelerator to the floor and start the engine. This will cut the injectors and not put more fuel.

However, we need to pull the plugs and make sure they are not fouled. If they are we need to replace them.

Let's find out what the pressure and and go from there.

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