probably a stupid question

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Jul 24, 2007 | 11:21 AM

junkz28

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probably a stupid question

anyhow, with hptuners hooked up, it's telling me that my right bank o2 sensor is dumping 90% fuel at idle while the left is at 10%. Apparently, this all happened after my header install. First, what would cause this? Also, what should i be checking?

Jul 24, 2007 | 01:22 PM

staringback05

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hmm those are weird numbers, but i guess im more familiar with efi live then hp tuners....

after your header install it looks like either you have a leak near the sensors or a bad sensor themselves...this will cause the trims to be off

Jul 24, 2007 | 01:24 PM

brad8266

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Check for exhaust leak on the header and if there are none then replace the O2 sensors.

Jul 24, 2007 | 04:11 PM

junkz28

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i had the car scanned today.

the codes are P0133B Heated Oxygen Sensor Slow Response (Bank1)(Sensor1)

and P1133B Heated Oxygen Sensor Insufficient Switching (Bank1)(Sensor1)

Any help with this? I tried searching and just found that people were having trouble with the sensors not getting hot enough, but if that was my case i'd have a problem with both sensors instead of 1.