hmmm cant seem to figure this out..
11-13-2011, 09:14 AM
#1
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hmmm cant seem to figure this out..
well heres the story. Changed my oil in my 06 lsj and when i do i remove the vaccuum line going into the throttle body so i can get my hands in there. well when i was done the line wasnt put back on completly. Well it went into limp mode blah blah blah fixed that and it was fine for awhile. Now yesterday im crusing up the road under full boost and it goes into limp mode again. read the codes my interceptor and i had p0068, p0069, p0171. which all are for throttle body airflow performance, manifold absolute pressue. Now i cleaned the throttle body and it was quite dirty and drove it some more and it seemed to be fine. Well later that night i was out again and once again went into limp mode. This time for p0069 which is manifold absolute pressure. Now this stumps me bc i have not a clue where to begin looking. Also i cleared this code and took it up the road. Now i have a 2.8 pulley and run about 17lbs of boost. After clearing the code and taking it up the road i was pushing 20 and over. not a clue why. I did put a new stage 2 belt on it earlier in the week and never paid attention to what i was running since i had one on it before. Some help would be greatly appriciated. and sorry for the long story i tried to keep it short sweet and to the point. 
11-13-2011, 06:08 PM
#3
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If that's all you touched,check the condition of the hose a the connection ,maybe it's cracked.
Also the connector that is by the oil fiter where you put the socket down to loosen the filter cap may of got damaged take a look at it as well,those wires are pretty small.
Also the connector that is by the oil fiter where you put the socket down to loosen the filter cap may of got damaged take a look at it as well,those wires are pretty small.
11-15-2011, 05:14 AM
#6
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are you on stock cat? you might of melted it or something. gm will replace it unless your over 100k. you should go to zzp and grab a 3inch catless if that is the case. get your tuner to turn off the cat code so u can pass inspection like i do. annnnnd ur good. if thats not ur problem sorry i wasnt a help
11-15-2011, 12:51 PM
#7
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I disconnected this connector once, changed my oil forgot to hook it back up and
Went for a drive and LiMP MODE: with codes. Reconnected it, cleared codes all
was well.
11-15-2011, 12:54 PM
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Hey guys. Yeah I have a 3in Catless dp from zzp along with corsa exhaust blah blah blah lol I figured out that it ended up being my throttle body went bad. So ls4 throttle body is now goin on it 
after I get done tucking away that damn headlight harness it looks really bad in the engine bay
after I get done tucking away that damn headlight harness it looks really bad in the engine bay
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