Mechanics

EMISSION CONTROL SYSTEM

1999 Toyota Corolla

Engine Performance problem
1999 Toyota Corolla 4 cyl Two Wheel Drive Automatic 100000 miles

Hi:

Where the vacuum switching valve at the emission system is located, yesterday I found at diagnostic a different codes PO300, P0301, P03002, P0304 and P0446 that means that the 300th are cinlinder failure and 446 that electric problem in the VSV for vapor pressure has been occured.

Any other suggestion where I have to look for this failures.
Avatar
Spc413b
November 2, 2008.




Its located at the rear of vehicle mounted on the charcoal canister, also check the rear of the intake manifold. One is the vent valve and the other is the vsv.

Tiny
Mastertechtim
Nov 2, 2008.
Code p0300 ,p0302and p0304
misfire codes need to check for tune up
code p0446 check for vacuum leaks check gas filler cap check for fuel leak
check canister and vacuum solenoid on it
location by the fuel tank

need manual CHECK IT @
http://www.2carpros.com/kpages/auto_repair_manuals.htm
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BMRFIXIT
Nov 2, 2008.

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