Question about 2004 Pontiac Grand Prix

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Check engine light is on sats it has to do with o2 sensor, replaced it with a universal one. Problem went away for two weeks and came back saying same thing what should i try now.

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Your vehicle have more than 1 o2 sensor.If you replace 1 you should replace them all for they all have the same mileage on them.

Posted on Oct 02, 2010

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I have a 2002 Nissan Frontier 3.3l v6 I'm about to change my knock sensor but I also need to change the camshaft position sensor but I'm not positive of where it is located it say bank 1??????


I'm willing to bet you have weak upper O2 sensors & there's nothing wrong with your knock sensor. But if you want, the knock sensor is under the lower intake manifold in the back that is located under the upper intake manifold also called the upper plenum. The lower intake manifold is wedged between the 2 heads and is an enormous pain in the azz to get to. You can check the O2 sensors with a scanning tool that will show you the upper sensors in bank 1 & 2 bouncing electrical current from about .5v to 5v several times per second. Anything less show weak sluggish sensors. The resulting lean mixture causes a knock. Change the sensors and the knock goes away and so does the engine light after you reset it. It took me 6 months to find this problem after replacing everything else including the 6mth old O2 sensors fresh from China. Now I have Bosch. PS The lower sensors went 2 weeks later & I was told any more problems it's the fuel regulator. 2001 Frontier 3.3l v6. No problems since, it purrs like a kitten. I'd suggest the Bosch, it's a special design for that 3.3l engine.

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i have replaced an O2 sensor and had similar failure after 1500 miles.
I removed it, chkd it, reinstalled it and it ran fine.
P0133 is related to slow response of O2 sensor. P1134 is mfg specific so google that for ur car.

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One suggestion I have is that each of the new type of engine's have an O2 sensor which is part of the exhaust. This is used by the computer to measure the amount of O2 in the exhaust gasses in the exhaust.
Try using this url link

Dodge durango o2 sensor bank 1 location

if it does not connect select the whole link start a new tab and paste the link to the URL address bar.

2004 durango exhaust oxygen sensor Google Search

some images of the exhaust system.

Mopar Parts Worldwide Mopar Parts for Dodge Chrysler Jeep

some other information and suppliers.

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