Quote:
Originally Posted by DaStuph
After cruising the forums, I replaced the Air Fuel Ratio Sensor (234-9002 Upstream) just before the single cat and after a few minutes of running it kicked out a p1130 code Bank 1/Sensor 1.
I searched quite a bit trying to identify an answer before posting, but found a lot of cloudy information. Near as I can tell, I need to replace the o2 sensor in the exhaust manifold on the passenger side of the vehicle (part #234-4261)???
Is that correct? Just need some confirmation here before I end up in a cycle where I replace every damn sensor on the truck to no avail.
Thanks ahead of time!
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Not sure if you are wrong or right but I'd pull out an ohmmeter/multimeter and spec it out according to the factory service manual. I'm unaware of an 02 sensor in the exhaust manifold (must be a 99+ thing if it exists).
What you could also do is pull the mass airflow sensor and throttle body and give them a good cleaning as well. It is possible that one of them is dirty causing the whole reading to be off.
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