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Walbro fuel pump install, and fuel pressure problems?

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Old 06-08-2010, 05:48 PM
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Walbro fuel pump install, and fuel pressure problems?
Just curious if anyone has had there car run richer/leaner, more pressure etc after Walbro GSS340 was installed?
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Old 06-09-2010, 12:02 AM
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Shouldn't matter whatsoever. Fuel pressure is controlled by the FP regulator, not the fuel pump.
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Old 06-09-2010, 09:19 AM
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Thats what I figured. The pump is working. I installed two things at once, injectors and pump. I retuned for injectors and its not running too well. I sent the injectors off to get flowed, cleaned etc etc. I was trying to eliminate possibilities with the pump. Injectors sat on a shelf for over a year, and I didnt clean them other than with injector cleaner in a bucket and spray.
Thanks
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Old 06-09-2010, 05:43 PM
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Have you checked the fuel pressure?
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Old 06-09-2010, 07:18 PM
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Originally Posted by Injuneer
Have you checked the fuel pressure?
43.5 psi with vacuum off. Fluctuates a little as the fuel damper installed on Vettes isnt there as Racetronix tells you to install rubber hose in place of it.
http://shop.corvettecentral.com/1985...-p6021542.html
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