oxygen sensor keeps going bad
12-31-2009, 05:34 PM
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oxygen sensor keeps going bad i have had my mods listed below in sig for about 3yrs now. once a year the passenger side 02 will go out. Driver side never goes out. i have a dyno tune too. i get the codes P0151 and P0174. i have a diablo programmer and it shows 0mv to the 02 sensor. i have checked for leaks, maf is clean, new fuel filter, and other then that i dont know what else to check. my oil filler cap dont seal all the way could that be problem? . i have been using bosh 13111 02 sensors. is this right? do i need upstream or down stream 02 for long tubes or do it matter? i looked on forum and some people say use the denso?? any 1 know the part number? also when u put in the 02 sensor, do u need to have it real tight? i tighten about the same as i do the spark plugs.
01-02-2010, 09:00 PM
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The sensor is probably not bad, just over-criticized in a bad
environment. If you killed some of the switching / heater
codes you could probably stay with closed loop operation.
If they switch then they're not dead. But they would like
more heat.
environment. If you killed some of the switching / heater
codes you could probably stay with closed loop operation.
If they switch then they're not dead. But they would like
more heat.
