walbro 355
#1
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hi all
my car is 2005 coupe.
The old fuel pump was off so after a quick search I got a walbro 255(not 355
. Now the car works well when I start the engine for a couple of minutes. After that the pump produces a very loud high-pitched tone. The first minute is very quiet and then gradually the noise becomes louder. After 5 minutes the sound is so annoying and you can hear it from a very long distance outside of the car(10 meters). Ive send an email to walbro and they replied :There are a couple questions we need answered before we can make any suggestions.
does anybody know the answers please?
thanks
my car is 2005 coupe.
The old fuel pump was off so after a quick search I got a walbro 255(not 355
![Smilie](https://my350z.com/forum/images/smilies/smile.gif)
- Does this vehicle have a fuel pump control module?
- Is there continuous 12+ volts to the fuel pump?
- Or is this vehicle trying to run a PWM signal to the fuel pump?
- What fuel regulator do you have?
does anybody know the answers please?
thanks
Last edited by dimitris1222; 06-08-2021 at 09:07 AM.
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