Need help with fuel pump codes...

[Mike Kopstain]

Hey kids... I need help with two codes that I pulled this afternoon.

542 - (O,M) Fuel pump open, bad ground or always on

543 - (O) Fuel pump monitor circuit shows no power

What could these codes indicate? The car kind of bucks when I'm cruising at any speed. It feels sort of like a miss, and now it feels like it's fighting to rev and shifiting lower and I know it's because I'm running out power. So what to do?

I also get this code: 211 - (M) Ignition PIP signal was erratic or missing

Now typically I would say right away that this were the cause of all my problems, but now the zinger, this is a Vulcan with a distributor. No CPS... makes ya think.

Any help offered is great. I'm posting this here because I know that people's knowledge of engines is not limited to just SHO's. Thanks in advance.

 

[SolidState]

I have the exact same codes and problems....at about 50-55mph, the car kinda surges. I figured it might be the TPS or fuel pump, but I really dunno. A couple times now I have hammered the throttle and the car mosied its way up in speed in 4th gear...I thought it might be the TPS shot...wouldnt' drop down a gear until I let off and punched it again....

 

[SolidState]

btw, I lost a little power today, as a matter of fact....it was alrigth cruising, but struggled in passing manuevers...but I think my car needs a serious 60k too...

 

[sdpatt]

Mikeys_Taurus:
Now typically I would say right away that this were the cause of all my problems, but now the zinger, this is a Vulcan with a distributor.

Isn't that what Spock drove on his home planet?

 

[Mike Kopstain]

sdpatt:

Mikeys_Taurus:
Now typically I would say right away that this were the cause of all my problems, but now the zinger, this is a Vulcan with a distributor.

Isn't that what Spock drove on his home planet?

Not quite ...

No insight Scott??? Me needs help.