Replaced NEW the following - EGR Valve - EGR selenoid behind engine - EGR vacume modulator - Mapping sensor - removed the EGR Tube into exhaust manifold was clear,EGR port clear, checked all hoses from EGR modulator / EGR / EGR selenoid all clear no leaks -- clear computer codes comes back after driving aprox 15 miles.. Iam a shade tree mechanic need advice !! HELP
2000 Toyota Camry code PO401 on 2000 Toyota Camry
by chuck09 in Camdenton, MO on June 12, 2013
ANSWER by pushrod on June 12, 2013
Circuit to the solenoid problem i say! Loose connection or broken/burnt wire. This is not a common problem on this engine, at least not at the shop. As a rule ECM and the EGR, amoung most things, are very reliable. However anything can happen in this business!