O2 questions...
05-30-2007, 06:05 PM
#1
1st Gear Member
Thread Starter
Join Date: Apr 2007
Location:
Posts: 78
O2 questions...
I installed my exhaust 2 weeks ago. Bassani catted X with Flowmaster 40 series catback. Everything went smooth. Screwed all the sensors back in. Sounds amazing. Yesterday the check engine light came on. I had a friend plug it in and got P0420 and P0430. Something about the catalytic emisions not being right in Bank1 and Bank 2. He cleared them out and I went for a drive. I drove about 15 miles, and no light.
If it comes back on, what the hell do those codes mean exactly and what can I do to fix it?
Do I need to upgrade my O2 sensors?
Will the XCAL 2 fix it?
On a side note, my gears are getting installed monday, and I just ordered my XCAL 15 minutes ago.
If it comes back on, what the hell do those codes mean exactly and what can I do to fix it?
Do I need to upgrade my O2 sensors?
Will the XCAL 2 fix it?
On a side note, my gears are getting installed monday, and I just ordered my XCAL 15 minutes ago.
05-30-2007, 06:17 PM
#2
Join Date: May 2007
Location:
Posts: 35
RE: O2 questions...
I read you need to have MIL eliminators to resolve the check engine light issue.
http://search.americanmuscle.com/?qu...8&amp;y=18
http://search.americanmuscle.com/?qu...8&amp;y=18
05-30-2007, 06:19 PM
#3
2nd Gear Member
Join Date: Dec 2006
Location: Houston, TX
Posts: 258
RE: O2 questions...
ORIGINAL: R3aP3R
I read you need to have MIL eliminators to resolve the check engine light issue.
http://search.americanmuscle.com/?qu...8&amp;y=18
I read you need to have MIL eliminators to resolve the check engine light issue.
http://search.americanmuscle.com/?qu...8&amp;y=18
05-30-2007, 06:46 PM
#5
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: O2 questions...
The codes indicate that the PCM thinks the catalytic converters are not doing their job (low efficiency), here's the full text of the shop manual diagnostics for P0430 (P0420 is the same, just bank 1):[/align][/align][/align]
[/align][/align]The XCal will let you disable the rear O2 sensors which will fix the issue...[/align]
[/align][/align]The XCal will let you disable the rear O2 sensors which will fix the issue...[/align]
05-30-2007, 07:07 PM
#7
1st Gear Member
Thread Starter
Join Date: Apr 2007
Location:
Posts: 78
RE: O2 questions...
Sweet. Thanks cliffy.
BlkGT, I went with catted to hopefully have no problems with inspections, but also for more torque. Cats = more torque. No cats = more HP less torque. At least that's what I have read.
BlkGT, I went with catted to hopefully have no problems with inspections, but also for more torque. Cats = more torque. No cats = more HP less torque. At least that's what I have read.
05-30-2007, 07:26 PM
#9
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
RE: O2 questions...
Who the heck has said it doesn't matter? My catted X and those of numerous others function as they should, and the original poster may have any combination of the other possible causes listed creating his particular issue--calm down and work the problem...