Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Po141

(2003 GMC Sonoma)
in Devine, TX on June 20, 2010
m.i.l. light is on. code scanned po141. Replaced o2 sens. cleared obc. came back on. same code. never ran the ethanol fuel in it. Could my cat.convert. be full o trash? I have to hit the key switch once, turn off, then turn it over to start. i put a fuel pump in it less than a year. engine idle surges @ start also. runs like a terd!?!?
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
also codes po403,po135,po155,po141, po161 are they related
Car was stolen. They stoled catalyc and cut wires to the downstream o2 sensor. We replaced parts. Denso o2. New cstal...
Didn't find what you were looking for?