Most likely it's an EGR valve problem. try unhooking egr then drive it, if the problem goes away, you just need to replace the egr valve.
If the underlying cause of the light is taken care of the OBD check engine light will go off after 6 warm up/driving cyclec or one within 50 miles of highway driving at a steady speed. If its still on you still have the problem/malfunction.
Yes and no. It will smoke more at start up and if you really hammer on it. But just cruising down the highway no.
Many reasons.... One, some catalytic conv have porcelain inside that brakes in pieces and makes malfunction such is block it. Two, some others have fiber glass which "melts" and once again...blocked. and another reason i can give you is the driving habits you may have sometimes driving slow is not the best for your car, take it out to ride on highway once in a while, gets rid of the "soot" inside, specially if you don't use premium gas. hope i helped....ABGDA
A healthy catalytic converter will be hotter out the back outlet than the front inlet after a good highway run. Average temp should be aprox 450 degrees at the front inlet to 700 degrees out the rear.
Most likely you will gain horse power, not loose it. There for gas mileage going up. ACE You will also violate most if not all State and Federal emissions laws. The catalytic converter is not an option on cars, it's put there by the gov't. The only way you can remove it legally is if you are not operating it on a US highway.
AnswerFuel Pump?Fuel Filter?Catalytic converter?Air filter?While all of the above will affect the engine speed performance, the sputtering or popping you are experiencing is caused by the oxygen sensor. It can cause this problem without causing a check engine light to come on.
They "reset" while driving at highway speeds.They "reset" while driving at highway speeds.
Highway hypnosis
Highway driving tends to be consistently moving forward, whereas city driving is a lot more stop-and-go. Higher speeds are reached on the highway. Highway driving tends to be straight line and long curves, whereas city driving has a lot more turns.
Could be several possibilities. One of which could be a restricted exhaust due to a damaged catalytic converter. The year, make, model and engine info would help.
It depends on the driver's braking habits and type of driving, be it city or highway driving. They can last between 25K or less of city driving to 75K or more of highway driving.
It is driving exclusively on the highway at a set speed with no stop and go traffic.