Mechanics

CHEVY P0452 AFTER FUEL PUMP REPLACEMENT

2001 Chevrolet Silverado

Electrical problem
2001 Chevy Silverado V8 Two Wheel Drive Automatic 104K miles

A couple of days after replacing the fuel pump in my Silverado 1500, the service light came on and I checked/cleared code P0452 evap sensor low. It came right back on about two minutes after starting the engine. I suspect it is one of these two things: (1) bad wiring connection
(2) bad sensor in new pump. I tend to think it more likely 1 than 2. Any other causes I need to check out?

Thanks!
Avatar
HiHoSilverado
April 10, 2009.




Hi did you find a solution to this problem?
I have the exact situation. Brand new pump and now the error. The shop said a new wire harness came with the pump and it was installed.
Thanks

Tiny
Jonnyques
Oct 2, 2009.


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