97spooncivic

I got this code P0453 which said "evaporative emission control system pressure sensor high input" The next day I got this code P0171 "system to lean (bank 1)" Can anyone help me fix these or give me any input, thanks

tor-scot

how do you get these codes?

anony95ex

Start with the lean code (P0171). That's the more important one. Find out why your engine is running lean, you have to do some diagnostic work (best bet is to pick up a FSM for exact procedures), but a good place to start is to look for vacuum leaks and exhaust leaks, and fix whatever you find. If you find any problems there, clear the codes (after you fix them, of course), drive the car normally for a few days and see if the light comes back on. If it comes on again with the same code, it could also be a air/fuel monitoring problem, which means one of a few possible sensors could be bad.

The evaporative emissions (EVAP) system basically keeps fuel fumes from escaping into the atmosphere. That won't affect how the car runs, it's just a federally mandated emissions thing, so worry about this after the lean code is fixed.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tor-scot &raquo;</TD></TR><TR><TD CLASS="quote">how do you get these codes?</TD></TR></TABLE>

With an OBDII scanner.

97spooncivic

ok, thanks. you said exhaust leaks could cause the problem. my exhaust has recently made alot of rattling like something is loose, could that be a problem. do you think it could be the fuel injectors. maybe they neeed to be cleaned?

97spooncivic

anybody else got an opinion?

Sean @ ESG

iTrader: (1)

does your exhaust sound like a can of marbles being shaked around? You probably got a leak, it sounds kinda like that.

97spooncivic

its sounds like there is like a bolt just sitting in my exhaust and rattleing around when the car is one. very clinky sound