code P0430

98p71 · 09-23-2003, 01:58 PM

I was wondering if anyone had any more info on this trouble code. The definition I got was:

"THE PCM HAS DETERMINIED THAT THE CATALYST SYSTEM EFFICIENCY FOR BANK 2 IS BELOW THRESHOLD FOR THE CURRENT ENGINE OPERATION CONDITIONS. (BANK 1 IDENTIFIES THE LOCATION OF CYLINDER #1, WHILE BANK 2 IDENTIFIES THE CYLINDERS ON THE OPPOSITE BANK)"

I was wondering if it is more likely the O2 sensors or the Cats?
And I guess it would be for the side of the engine opposite of cylinder 1?

The vehicle is a 98 Crown Vic Police Interceptor. It started pinging with 87 octane about a month ago. I put 93 in it and it seemed to be working better. Then it started to miss intermittantly. The service engine soon light is now on and still seems to run okay on 93, but still pings on 87.

Thanks,

Jerry

98p71 · 09-24-2003, 08:28 PM

any help anyone???

Thanks,

Jerry

The Deuce · 09-24-2003, 10:11 PM

pull the plugs and take a look. also unplug the o2 sensors and see if it runs worse, or better.

There is no way for us to know if its the sensor or the car unless you get into it a little more.

98p71 · 09-25-2003, 09:47 PM

thanks. I'll do that... I have changed the plugs, although the old ones looked normal... ill let you know what i find with the o2 sensors...

09-24-2003, 10:11 PM	#3
The Deuce Registered Member Join Date: Apr 2002 Location: Atlanta, GA Posts: 2,325	pull the plugs and take a look. also unplug the o2 sensors and see if it runs worse, or better. There is no way for us to know if its the sensor or the car unless you get into it a little more. __________________ 1997 Mustang GT "The Freak" - 13.80 @ 101.70, 2.07 60' 1995 Honda VFR750 - not much @ really fast (actual data pending.) 1964.5 Mustang 289 Rice Haters Club Member #13

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09-23-2003, 01:58 PM	#1
98p71 Registered Member Join Date: Sep 2003 Location: Waxahachie, TX Posts: 3	code P0430 I was wondering if anyone had any more info on this trouble code. The definition I got was: "THE PCM HAS DETERMINIED THAT THE CATALYST SYSTEM EFFICIENCY FOR BANK 2 IS BELOW THRESHOLD FOR THE CURRENT ENGINE OPERATION CONDITIONS. (BANK 1 IDENTIFIES THE LOCATION OF CYLINDER #1, WHILE BANK 2 IDENTIFIES THE CYLINDERS ON THE OPPOSITE BANK)" I was wondering if it is more likely the O2 sensors or the Cats? And I guess it would be for the side of the engine opposite of cylinder 1? The vehicle is a 98 Crown Vic Police Interceptor. It started pinging with 87 octane about a month ago. I put 93 in it and it seemed to be working better. Then it started to miss intermittantly. The service engine soon light is now on and still seems to run okay on 93, but still pings on 87. Thanks, Jerry Last edited by 98p71; 09-23-2003 at 07:25 PM..

09-24-2003, 08:28 PM	#2
98p71 Registered Member Join Date: Sep 2003 Location: Waxahachie, TX Posts: 3	any help anyone??? Thanks, Jerry

09-25-2003, 09:47 PM	#4
98p71 Registered Member Join Date: Sep 2003 Location: Waxahachie, TX Posts: 3	thanks. I'll do that... I have changed the plugs, although the old ones looked normal... ill let you know what i find with the o2 sensors...