Here are the voltages for the pre-cat sessors ds. I found a few posts similar to your situation. Shop said the new Main Cat must have been bad… so put a different new one on. Im thinking about ordering off rock auto. With the car the way it currently is, am I doing more and more damage each trip to work and should have this examined asap? Which cat is that exactly Ive read different answers on the net. How many cats are on the car Confused 1. If your car is knocking, rough idle, loses power, etc.
You are correct about the defauly running rich with an O2 failure. This is known as the downstream O2 sensor, they are the ones that throw this code. So for the longest time I have had the p0430 code going on. Check the air filter too and replace if dirty. Disconnecting the Ignition Coil one at a time as well as using a Known Good Coil is a practical way to isolate the problem but may not work especially if the problem is intermittent or temperature sensitive.
I will try and schedule the reprogramming as soon as I can, but if that is performed and it does not fix the problem, am I killing the car by continuing the drive 50 miles a day on it? Today it read P0328 and also p0430 and my gas mileage is horrible. Finally decided to fix it when emissions inspection was due. Tech notes As the code description implies the P0430 code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly is not as efficient as the factory is expecting. I got the code and cleared it to make sure it wasn't a fluke and a couple of days later came back on. Like i said sounds like you need a new cat.
I've used aftermarket cats and have never had a problem. The Bank 1 Front O2 sensor is mounted on the vertical portion of the exhaust pipe. In my experience with Toyotas, the problem does not usually go away with a new O2 sensor. Fast forward about a month and a half Loystock - thanks for the reply and info A couple of questions - Im no longer receiving the p0430 code after replacing the bad O2 sensor. Next step is to measure the voltage at the oxygen sensor on Bank 2. Recalls dont cost anything, Tsbs are different. If it went away, the condition that caused it has been gone for about 50 miles of driving.
Do you all suggest I leave it be and only go for the reprogramming if it comes up again? I have a lot of the past maintenance records but I just wanted to see what you all think I should have done immediately as preventative maintenance. That's provided the oxygen sensor is not faulty, which personally, I'd go for that first. I replaced the cat with this nissan Pathfinder Xterra Frontier Drivers Side 4 0L 5 6L New Catalytic Converter eBay. It's too late now but tomorrow I'll check. I've got a car that constantly throws up 420 and 430 codes because the catalytic converter got dinged up from running something other.
It should but since I havent tried it myself I cant confirm it. I got lucky since i work at a shop i got it in for one hour and bought an ngk plug from amazon. Thank you for the information. Car ran fine for about a week. Pretty sure it was p1132.
Guess I'd better contact the dealer for a reflash. Fully depress the accelerator pedal. I didn't bother to do it when I first started the car. That code along with the p0420 are very common on nissan trucks. The light came back on after 5 miles, the shop said it must have been a bad catalyst, so put a different one on. Many manufacturers give a five year, unlimited mileage warranty on these items. First, inspect for exhaust leaks.
I had the codes read at autozone and p0138 and p0139 came up. If the P0430 code is combined with other codes, try fixing the other codes first. Engine has been running fine since then 3 weeks but light I dont believe that the cleaner could cause that code sounds like a seperate issue. Im thinking about ordering off rock auto. I will try and schedule the reprogramming as soon as I can, but if that is performed and it does not fix the problem, am I killing the car by continuing the drive 50 miles a day on it? When the car is cold it stalls and backfires - but warmed up it is fine.
This readings were done when the car was at operating temperature. No codes pushed and engine runs so quite you can hardly hear it. With the car the way it currently is, am I doing more and more damage each trip to work and should have this examined asap? The warranty is definitely over if at 74K miles 10 years old? If I find it I will post. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate. Car has about 106,400 at the moment.