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pearce9906 · 12-19-2007, 06:46 PM

Yes, the fuel relay under the drivers' seat, the mist/vapor is coming from not from the injector, but from the intake around the injector seat, but only after the motor has started loading up with fuel, running rich.
If the fuel pump were running correctly, would it pulse on and off, or would it run all the time?
I know that GM fuel pumps pulse on and off based on back pressure in the line.

12-19-2007, 06:46 PM	#16
pearce9906 Registered Member Join Date: Nov 2007 Location: OHIO Posts: 20	Re: 88 lx 5.0 needs help! Yes, the fuel relay under the drivers' seat, the mist/vapor is coming from not from the injector, but from the intake around the injector seat, but only after the motor has started loading up with fuel, running rich. If the fuel pump were running correctly, would it pulse on and off, or would it run all the time? I know that GM fuel pumps pulse on and off based on back pressure in the line.