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leaks...

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gotboost3

New member
ok guys i had the p1133 code insufficient switching bank 1 so i replaced the sensro with the dreaded bosch sensor the code was gone for awhile but has came back....now the question is i have pacesetters that have a small leak can an exhaust leak throw this code? oxygen leaking into the pipes making it think bank one is lean all the time? lemme know or do i just need a denso?
 


ok im leaking at the y collector right where the o2 is plugged up? would that cause my car to think the sensor is bad or not switching?
 
DTC P0133 HO2S Slow Response Bank 1 Sensor 1
DTC P1133 HO2S Insufficient Switching Bank 1 Sensor 1
DTC P1134 HO2S Transition Time Ratio Bank 1 Sensor 1

im throwing all these codes for the narrow band o2.....its a brand new bosch....bad sensor or really bad leak?
 


You said you were getting crap MPG's right. It is the collector. That is what made me weld mine...put in a new Bosch Race o2 after the weld too and she went from about 19-21 on the HWY to about 21 AVERAGE!! Even saw 31 at one point it was AWESOME!! WITH MY MODS TOO!! And that was with the 3.1" pulley...
 
if i have the collector welded, to the rear header and cross over and the downpipe so i have no way possible to leak how much of a ***** will it be to get the cross over, dp, collector and rear header in there as one piece?
 
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