service engine light

[nerisls1]

thing is that only under high accel. it comes on checked the codes an this is what came up
PO131 o2 circuit b1 s1
PO151 o2 circuit b2 s1
PO137 o2 circuit b1 s2
PO157 o2 crcuit b2 s2
it drives me nuts when i race somebody then a damm light comes on dont know if its the sensor or maf

[Orcus79]

to have all four codes pop up, chances are its the maf, or the cats are clogged and restricting flow enough to create some funky readings.

[basballny2]

does the car bog down at all? loss of hp? car hesitate? If so, MAf

[nerisls1]

nope no bogging or nuthing but dont smell any burt eggs like when a cat gos bad

[basballny2]

and this is only under hard acceleration?

[nerisls1]

yes only under hard acceleration but only at a certain speed it weird i was racing this sti on the i95 the other day im crusing at 60 and he fly by so i punch it blew by him hit bout 130 them bam light came on .....hehe hehe the 4 banger couldnt keep up so i wasnt worried bout the ses but just wondering if you guys good give me any idea's

[Red99TA]

try cleaning the maf first, any auto parts store should carry cleaner, cheapest and fastest way to start

[ricefordiner]

wow dude same exact thing happend to me dude! but until i get cash i cant really try anything suks fat ass!

[0rion]

it almost sounds like you're going extremely lean or you have a harness/ground issue. I wouldn't be doing wot runs until you get it figured out though or at least see where your afr is.

[nerisls1]

really i should just have it tuned out cause that light drives me nuts......but my bro has hp turner and i checked it but i forgot what the feeding was but worst case i will clean the maf out first cause i was going to get longtubes anyway and different y pipe......its weird but hey it happens damm o2 sensors and other crap dammit