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2001 Honda civic loses power after 30 min driving Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Engine Troubleshooting dinguino New User Sep 23, 2011, 8:07 AM Post #1 of 6 (4477 views) 2001 Honda civic loses power after 30 min driving Sign In Hi I have a 2001 honda civic that has been having problems. It started overheating a few months ago so I recently had the head gasket, water pump, timing belt all replaced. The check engine light started then and continues to be on. It drives fine for 30 min on freeway then like clock work will die down to about 40% power. I checked the codes and it read cat converter and o2 sensor. So I replaced the 2- o2 sensors and cat. Car sounds alot better as the other exhaust manifold was cracked. I still have a o2 sensor code after diconecting the battery etc.. I am going to replace the upstream o2 sensor again because it was the cheaper one from a different company. My car has 196000 miles but runs great until about 30 min of driving. Would a o2 sensor make my car shut down into a safe mode? I am absolutely stumped. My air filter is good, oil changed. Could my muffler be clogged? It looks fairly new and sounds ok. Any help would be appreciated Hammer Time Ultimate Carjunky / Moderator Sep 23, 2011, 8:31 AM Post #2 of 6 (4462 views) Re: 2001 Honda civic loses power after 30 min driving Sign In What were the exact code numbers? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. dinguino New User Sep 23, 2011, 11:58 AM Post #3 of 6 (4447 views) Re: 2001 Honda civic loses power after 30 min driving Sign In P0420 and P0136. I am going to replace the fuel filter this weekend. Other then that I am stumped. My car goes into limp mode Hammer Time Ultimate Carjunky / Moderator Sep 23, 2011, 12:53 PM Post #4 of 6 (4442 views) Re: 2001 Honda civic loses power after 30 min driving Sign In It looks like you have a problem with an 0/2 sensor circuit that needs to be diagnosed properly and a likely bad Catalytic Converter ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. dinguino New User Sep 23, 2011, 1:16 PM Post #5 of 6 (4434 views) Re: 2001 Honda civic loses power after 30 min driving Sign In I replaced the cat 50 miles ago and both o2 sensors. Its a OBDII cat. I'm wondering if it may be plugs/coils or injector control mod? I guess I will have to systematically replace everything:) Hammer Time Ultimate Carjunky / Moderator Sep 23, 2011, 1:34 PM Post #6 of 6 (4429 views) Re: 2001 Honda civic loses power after 30 min driving Sign In You had better bring it back to the guy that installed the cat then. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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