How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Auto Tech Guy Your Own Question
Auto Tech Guy
Auto Tech Guy, Friendly Toyota Tech.
Category: Toyota
Satisfied Customers: 304
Experience:  Toyota Certified Technician, ASE Accredited, Engine rebuilder, Turbo specialist, Engine Diangnosis
Type Your Toyota Question Here...
Auto Tech Guy is online now
A new question is answered every 9 seconds

Impala: tested..I replaced egr valve and car..catalytic converter

Resolved Question:

02 impala tested po404. I replaced egr valve and car is still acting up during acceloration. Is this because my catalytic converter needs to be replaced
Submitted: 9 years ago.
Category: Toyota
Expert:  Auto Tech Guy replied 9 years ago.

when you replaced the egr valve did you inspect the ports on your throttle body for carbon build up? Also the tube for clogging?

Yes the general "fix" for you code is the expensive convertors... if not clogged ports on the throttle or the egr tube itself.


-Auto tech guy

Auto Tech Guy and other Toyota Specialists are ready to help you