p1133 code on SES diagnostic

[handz1000]

Ran a diagnostic test after a S.e.S light came on my 1998 i30

code p1133 came up

heated oxygen sensor Bank 1 -sensor 1 (ho2s11)
insufficient switching

probable causes- 1.Extreme rich or lean air fuel ratio
2.failed o2 heater circut
3.air leak in exhaust near 02 sensor

need to pass emissions in a week ,need help from the forums on what i can do and how much it could cost me

by the way the test came up as a acura even though my car is a infiniti but the guy at the Ga autozone said acura is the only thing they had in the computer reading (was not sure if this makes a difference im sure the p1133 is common.

any help would be appreciated

[handz1000]

any one?

[tigersharkdude]

Might want to go to a different parts store and get that code read again. P1133 isnt even on the list of A32 trouble codes

[handz1000]

if i go to another place and it runs the same code is there a chance i would have to go to infiniti ??

[loystock]

Where you go for diagnostic is up to you but we need a valid trouble code so we can help you.

[handz1000]

new codes from local auto body repair shop
P0133
p0325

and a possible but not definite p0441

[tigersharkdude]

new codes from local auto body repair shop
P0133
p0325

and a possible but not definite p0441

P0133= undefined
P0441= Not a code

P0325= 0304
0304

Diagnostic Trouble Code 0304 points to a problem with the Knock Sensor. The KS is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A knocking vibration from the cylinder block is senses as vibrational pressure. This pressure is converted into a voltage signal and sent to the Engine Control Module (The computer).

This malfunction is detected when an excessively high or low voltage from the KS is entered to the ECM. Possible causes include...
- the harness or connector (The KS circuit is open or shorted).
- the KS

The KS may be checked with an ohmmeter.

1) Raise the hood. View the engine from the driver's fender. Look into
the deep valley between the cylinder banks and below the intake manifold.
Identify the KS as a black item fastened to the block by a single vertical
bolt. A wire harness wrapped in black leads toward you, out of the valley.
That is the KS sub-harness.

2) Follow the KS sub-harness to it's nearest connector. This is connector F121.
It is located near the upper right-hand corner of the valve cover of the forward cylinder bank, as viewed from the front of the car.

3) Disconnect F121. You have to do a "press the latch and wiggle and
pull" to disconnect it. F121 has only two pins; if you see more than two
pins, you have the wrong connector. Use a digital ohmmeter capable of
measuring more than 10 Megohms. You want to measure the pins of F121, not
the sockets of the matching connector. Measure the resistance between a
good ground (such as the battery negative terminal) and pin #2 of connector
F121. On my car this is the highest of the two pins, the one closest to
the front of the car. The factory spec is 500 - 620 Kohms.

The manual says you have to remove the intake manifold to replace the KS. However, I think that a person with good dexterity and a 12mm ratcheting box wrench could replace the KS without disturbing the manifold.

Important note: the dealer can do a more thorough test with his CONSULT electronic tester. The resistance test described here is a useful but limited test. A Knock Sensor which fails this test is definitely bad. However, a KS which passes this test is not guaranteed to be good.

[handz1000]

the po133 says eco sensor slow response and po235 knock sensor as i assumed

the p0411 the guy said system not ready ...possible system malfunction(i was skeptical about this one)

but the p1133 first initial code and p0133 from the other auto shop are remotely close codes if i am correct so i am assuming that sensor could be a problem or anything in that area like a leak or or something.

also the previous owner never used 91 or higher only 87 reg ..that could be the knock sensor issue?
or could one be triggering the other.

car also vibrates and shakes at the steering occasionally

[handz1000]

update ..

Went to 3 diff auto repair shops after and they all pulled p0133
diagnosis poor co2 or rich/to lean air fuel ratio.
went to straus and bought this fuel spray by HI -gear called one tank emissions pass
and the next morning my cel came off and its been off ..i go for emissions and inspection tommorow


the air flow was clogged and needed to be cleaned?
not excactly sure how that stuff works but it did for the mean time (knoc on wood)

[tigersharkdude]

hope you pass emissions, if you dont though...scan the "fail" slip and blur out any of your info and post the pic here. Another more knowledgeable member may be able to help you with that info

[handz1000]

I Passed,now i can save the headache for another day