1990 Reatta fuel problems

Warpedtek

New member
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1
Buick Ownership
1990 Buick Reatta
So when I test my 1990 Buick reatta fuel pump at the wire when the vehicle is off I get the correct amount of fuel pressure but when the vehicle is running I only get about £36 of pressure I have replace the fuel pressure relay I have replaced the fuel pressure regulator I have replaced the fuel pump with a brand new Delphi pump and I still can't get the correct amount of pressure to make my car run right
 

MelsRegal

Full Member
2,191
133
63
Buick Ownership
Regal GS 2017
even though you replaced the pump and regulator they could be defective but you make no mention of whether you replaced the fuel filter?
 
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