Just bought a 3rd gen with a TPI, it is throwing a code 54....Had a bad pump when I got it, but has been replaced.

Just wondering if this is a common code with the TPI's

Book says it could be a short, an open, bad fuel pump, bad relay etc. Just trying to bypass all that.

The car fires up easily, then runs for about 10-15 seconds and quits....going to check fuel pressure tomorrow.

Thanks in advance for any replies.