Check engine light: P0430 - Bank 2 Catalytic Converter
#21
Cataylist problems
After getting the light and reading the forums, I decided that the only thing I could do at the time was put some of that Redline fuel injector cleaner in.
A few days later, I was able to go in to my mechanic. As he was reading the codes, I noticed that it was giving a P1111 code. After clearing the P0430, the check engine light went off and has stayed off ever since.
Gas mileage seems to be better too... I would love for this to be a permanent fix but I won't be too surprised if the light comes back on down the road. For now though, I love NOT seeing that CEL!
EDIT: UPDATE: Light came back on, same code. Guess it's time to replace an oxygen sensor or the cat. *sigh* Hope I can find a pretty good deal.
A few days later, I was able to go in to my mechanic. As he was reading the codes, I noticed that it was giving a P1111 code. After clearing the P0430, the check engine light went off and has stayed off ever since.
Gas mileage seems to be better too... I would love for this to be a permanent fix but I won't be too surprised if the light comes back on down the road. For now though, I love NOT seeing that CEL!
EDIT: UPDATE: Light came back on, same code. Guess it's time to replace an oxygen sensor or the cat. *sigh* Hope I can find a pretty good deal.
I do believe the error code you are getting is a result of a partial clog of the bank 2 cataylist. I had purchase a used 2002 jaguar xtype with same code had replaced all oxygen sensors and reset computer. Code will come back on after about 70 or so miles. My mechanic stated it is a partial clog of the bank 2 catalyst converter. I would try a cataylist cleaner before replacing the cat. A partial clog may be repaired however if it is fully clogged it may have overheated the cat and maybe in worse cases collapsed the internals of the cat then it will need replaced. Hope this may help
#23
No. The P0430 is a result of the comparison of the signals of the upstream and downstream oxygen sensors on each catalytic converter. Normal operation, the upstream O2 sensor should be bouncing around a lot while the downstream sensor should be very stable. If you can look at the actual O2 sensor outputs with an OBD scanning tool you should be able to see the problem. Either the upstream sensor isn't moving much (signal should be changing at least every couple seconds, even as fast as a few times a second) or the downstream sensor is moving too much. Downstream should stay steady most of the time. If you are lucky you have a bad O2 sensor. Changing the catalytic converter is painful.
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Eric Mcclements (11-29-2020)
#24
For the life of me I have NO idea how to just send you a private message so I am sending you this hoping you receive it.
I am in Utah as well in PC, and have a couple of X types. I wanted to ask you on your O2 sensor what problems and codes you had and if they were fixed by the replacement of the O2 sensors. Is it possible you could just send me an email to david@duiutah.com
or I suppose Ill try to find my messages in here.
I have a sometimes flickering yellow light (along with a constant engine light throwing codes each bank lean out of range, fuel pump, and both knock sensors. Ive heard no knock and yet get that bucking or fuel starvation "bucking" where you know either timing or fuel is being cut off. However, to be clear, its not the fuel pump. I thin ive got a bad signal from the knock sensor OR a bad connection because of the way that yellow light goes on w the message "No Cruise Available" additionally I have had the light go on while fueling at a full stop and at other times NOT under load. Anyway if you wouldnt mind dropping me a line that'd be great. Ive had seven of these cars and am well familiar with the differential diagnosis on them, was a mechanic early in life, and have excellent aptitude but this one has me stumped and ready to replace
thanks, Dave both sensors.
I am in Utah as well in PC, and have a couple of X types. I wanted to ask you on your O2 sensor what problems and codes you had and if they were fixed by the replacement of the O2 sensors. Is it possible you could just send me an email to david@duiutah.com
or I suppose Ill try to find my messages in here.
I have a sometimes flickering yellow light (along with a constant engine light throwing codes each bank lean out of range, fuel pump, and both knock sensors. Ive heard no knock and yet get that bucking or fuel starvation "bucking" where you know either timing or fuel is being cut off. However, to be clear, its not the fuel pump. I thin ive got a bad signal from the knock sensor OR a bad connection because of the way that yellow light goes on w the message "No Cruise Available" additionally I have had the light go on while fueling at a full stop and at other times NOT under load. Anyway if you wouldnt mind dropping me a line that'd be great. Ive had seven of these cars and am well familiar with the differential diagnosis on them, was a mechanic early in life, and have excellent aptitude but this one has me stumped and ready to replace
thanks, Dave both sensors.
#25
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#26
David you say you a a few xtypes so I’m wondering if you have already checked the for vacuum leaks ? Imt seals, upper and lower intake manifold seals, and the pvc hose and also the brake booster plastic line. Those would be your main culprits for lean codes. Also have you cleaned the MAF sensor. Next would be have you changed the spark plugs and if you have did you use the correct ones.
#27
#28
#29
I did run the car for quite a while with the CEL on, I just didnt take the rpm over 2800 to avoid the engine cutting out so that may have damaged the cat converter
Also, I have not changed the o2 sensor either, not sure if it would make a difference, I believe I read that extended driving in limp mode will damage the converter.
#30
I used the 1.5 also, I am not as lucky
I did run the car for quite a while with the CEL on, I just didnt take the rpm over 2800 to avoid the engine cutting out so that may have damaged the cat converter
Also, I have not changed the o2 sensor either, not sure if it would make a difference, I believe I read that extended driving in limp mode will damage the converter.
I did run the car for quite a while with the CEL on, I just didnt take the rpm over 2800 to avoid the engine cutting out so that may have damaged the cat converter
Also, I have not changed the o2 sensor either, not sure if it would make a difference, I believe I read that extended driving in limp mode will damage the converter.
#31
I dont think I changed them, if they were good I probably just cleaned them up. Not sure though, dont recall and have worked on several cars since then.
#33
ILT Orings
Vacuum Booster Line
Upper and Lower intake gaskets
Brake booster
It was a little involved but, those issues are done so the CEL does not come on for that any longer.
Only the Cat and occasionally the fuel pump.
#34
#35
#36
Sooo
God dang! I just flew from Tampa to San Diego and the seller drops the - “this just came up” take it to a dealer to get scanned… what do I need to get? What are these spacers?🤷🏻♂️
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