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'98 STS (RIP @ 206,xxx miles)
4,854 Posts
bigd said:
p0603 history
p1810 history
pzmb0533 history

any light on this subject?
P0603; Long term memory reset. Most likely the battery has been disconnected.
P1810; TFP valve position switch error. Transaxle code.
B0533; Fuel sensor open / shorted to B+.
PCM?; is waiting for you to respond.

If none of your codes are current, this is like reading a week old newspaper. Reset codes and check for new, current codes.

Good luck....
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