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Service Engine Soon Light came on??

  • Thread starter Thread starter PonyTrader
  • Start date Start date Aug 14, 2006
P

PonyTrader

New Member
Dec 29, 2003
14
0
0
Clearwater, FL
Aug 14, 2006
#1
  • Aug 14, 2006
  • #1
Last night i got the service engine soon light come on. So today I went to Auto Zone to get a free diagnostics. They got 2 reads here they are:


Code: PO430
The PCM has determined that the catalyst system efficiency for bank 2 is below threshold for the current engine operating conditions. (Bank 1 identifies the location of cylinder #1, while bank 2 identifies the cylinders on the opposite bank)

and...

Code: PO305
The PCM has determined that a misfire has occurred in cylinder #5.

10 days ago i got BBK off-road xpipe with flowmasters put on with MIL Eliminators. Anyone know what might be wrong?
 
B

biglar5.0

Member
Aug 13, 2006
7
1
13
tampa, fl
Aug 14, 2006
#2
  • Aug 14, 2006
  • #2
the 0430 is the o2 sensor, it happened to my car.
The other ??? did you wash the engine recently?

see ya
 

Mike97gt

it doe snot
Founding Member
Jan 26, 1999
10,633
7
89
the people's republic of massachusetts
Aug 14, 2006
#3
  • Aug 14, 2006
  • #3
the p0430 code is most likely caused by a bad MIL eliminator.. this happens a lot thats why I like to shut it off in the tune better...


and the misfire most of the time is caused by a bad plug and or coil
 
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