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 john aka eauto Your Own Question
john aka eauto
john aka eauto, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 15527
Experience:  16 years ase certified
6149662
Type Your Mitsubishi Question Here...
john aka eauto is online now
A new question is answered every 9 seconds

My 2001 Mitsubishi Eclipse keeps dying it will start right

Customer Question

my 2001 Mitsubishi Eclipse keeps dying it will start right back up again but then dies. Had codes ran and it pulled code PO421, PO507, and PO401. We have replaced the oxygen sensor, Fuel Pump, Alternator. HELP
Submitted: 6 months ago.
Category: Mitsubishi
Expert:  john aka eauto replied 6 months ago.

is the converter plugged?

Customer: replied 6 months ago.
not being dumb but I need details whats the converter
Expert:  john aka eauto replied 6 months ago.

the catylitic converter in the exhaust system

Customer: replied 6 months ago.
No we havnt checked that yet
Expert:  john aka eauto replied 6 months ago.

you have a code for it so thats where i would start

hope you can rate my service 5 star any further questions just respond

Customer: replied 6 months ago.
how do we check it
Expert:  john aka eauto replied 6 months ago.

remove the upstream o2 and see if it stays running...or drop the exhaust

Customer: replied 6 months ago.
Ok we will check that If it stays running what does that mean
Expert:  john aka eauto replied 6 months ago.

that the catylitic converter is restricted and will require replacemnet