2003 Honda Accord P2A00 Code

Tiny
BLUESTREAK1
  • MEMBER
  • 2003 HONDA ACCORD
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
My 2003 Honda Accord LX Sedan 4cyl is showing a P2A00 code. I have found an Honda TSB (03027) that says to replace the MAF sensor, however in the Honda there is a MAP sensor (part 079800-5410 DENSO). Should I replace the MAP sensor to fix the car or is there another sensor that could be causing this code?
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Wednesday, February 2nd, 2011 AT 10:34 PM

4 Replies

Tiny
WRENCHTECH
  • EXPERT
That TSB doesn't say anything about a MAF.
"PROBABLE CAUSE
The air fuel ratio sensor is faulty"

An air fuel ratio sensor is an 0/2 sensor.
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Wednesday, February 2nd, 2011 AT 11:24 PM
Tiny
KHLOW2008
  • EXPERT
Yes. AF sensor = 02 sensor.
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Thursday, February 3rd, 2011 AT 2:55 PM
Tiny
BLUESTREAK1
  • MEMBER
Thanks for the quick reply. Just to be sure when I order the part from Honda, they list two sensors LAF and Oxygen. In the picture you provided, it appears that I would order the LAF, item 16 (and not 17), from the picture attached. (Honda's catalog)

Ref. Part Description Part Number
001 MUFFLER SET, EX. 18030-SDN-A01
002 CONVERTER 18160-RAA-A00
003 BOLT, CONVERTER 18176-PT0-003
004 BOLT, CONVERTER 18176-P08-003
005 COVER (LOWER) 18181-RAA-A01
006 COVER (UPPER) 18182-RAA-A01
007 PIPE A, EX. 18210-SDA-A01
008 RUBBER, EX. MOUNTING 18215-SDA-A01
009 RUBBER, EX. MOUNTING 18215-SDA-A21
010 RUBBER, EX. MOUNTING 18215-S84-A20
011 GASKET, EX. FLEXIBLE 18229-S6M-003
012 SPRING, FLEXIBLE. 18230-SV4-000
013 BOLT B, FLEXIBLE. 18231-SR3-A22
014 GASKET, EX. PIPE 18302-SP0-003
015 GASKET, PRE CHAMB. 18393-SH3-S00
016 SENSOR, LAF 36531-RAA-A02
017 SENSOR, OXYGEN 36532-RAA-A11
018 CLIP, WIRE HARNESS 36535-RAA-A01
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Thursday, February 3rd, 2011 AT 11:24 PM
Tiny
WRENCHTECH
  • EXPERT
Yes, they call it a Lambda air/fuel sensor but you really don't have to buy it from the dealer. Many aftermarket companies sell direct fit replacements.
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Thursday, February 3rd, 2011 AT 11:47 PM

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