You can say that again Rayven! Like I said, my truck has the light on and it codes for ho2 sensor, but it runs fine. It really took you guys to convince me that the sensor was the problem on the vibe.
Thanks again fellows,
Deep gratitude and best wishes to you all.
Chris

Hi guys! So I installed the 234-9052 a/f sensor. The car ran noticeably better but, still hesitated from a stop and surged through 700-2000 rpm. I figured the computer had to learn and I needed to get it on the freeway to blow the rest of the stuff out. I took it to work, filled it with fresh gas an...

Thanks Mike,
I'm picking up all the parts tomorrow.

Thank you for the info, like things aren't hard enough without the supplier screwing up too.

So I went to the above site Rayven recommended and found the sensor 234-9052. The Amazon website doesn't say much, but I did find this number online which is described as a narrow band non-heated sensor. Is their description wrong? http://www.autozone.com/1/products/423949-oxygen-sensor-denso-234-90...

Rayvend, thanks for the heads up. It turns out that the sensor I bought is a narrow band. I called O'Reilly's and explained what happened. I gave them the proper part number which they said they did not have, but offered an exact match alternate. I got the part number and looked it up. It turns out ...

Well I studied fuel trim last night. It's seems the ho2 sensor for the vibe is much more critical to engine operation than the faulty ho2 sensor on my 2000 f150. I think the plan is now to get a genuine Toyota ho2 sensor, clamp down hoses, and change the intake gasket. Any different ideas and or opi...

Hello everyone. I hope this adventure is helping more than just myself. I ran a vacuum test which gave me a very steady 14 in hg with the engine at operating temp. Not great but I will be changing intake gasket and clamping all hoses to try to bring this number up. It takes several starts with a sho...

Hello everyone. I hope this adventure is helping more than just myself. I ran a vacuum test which have me a very steady 14 in hg with the engine at operating temp. Not great but I will be changing intake gasket and clamping all hoses to try to bring this number up. I takes several starts with a shor...

Thank you Mike! Im betting we are almost there. Your assistance is highly valued and most appreciated.

One more thing. Can you really hear the fuel pump through the filler pipe. Cause I don't hear anything with the key on. I can hear something in the engine compartment. I also followed the instructions to relieve the fuel pressure at the injectors. (Unplugged the pump at the tank, cranked the engine ...

Well I'm back. The pre-cat ho2 sensor was coated in black soot. Nothing wet. The rear ho2 sensor was fairly clean. And apparently functional because I measured DC voltage start to rise as I heated it. When I removed the heat the voltage dropped. I also found that from the connection at the exhaust m...

Thank you for the input. I should check fuel pressure, but I have just purchased a compression tester and spark testers and noid lights. This weekend will be dropping the converter and cleaning that. If the problem remains I will look into fuel pressure. I removed almost two quarts of oil which stil...

No, I did not verify that the ecu has been changed. The guy asked for the last eight numbers of my vin looked it up then told me that nothing was covered anymore. I saw no point in arguing with the guy as it would only have got me no where. My girlfriend is the only owner and she tells me that no su...

I called Pontiac and they said there are no recalls covering my car.

Thank you. Guess I'm removing the converter next. I appreciate all your advice.

Parts cleaned and reinstalled. New plugs put in. Engine runs the same. I installed an aftermarket pre cat O2 sensor. Can this be the problem? Both O2 sensors are probably coated in carbon. Would these affect the low rpms and horsepower? Can they be cleaned?
Thank you

Hi again, I tried the Seafoam, but haven't been able to travel any major distance for safety reasons. From a stop I step on the gas slightly and it seems to want to stall it takes a lot of foot play to get it moving. So going through intersections to get to the freway is not a good idea. Managed abo...

Thank you for the advice. I will give that a try and post the results.

What an embarrassing way to introduce myself. I have a 2006 base with 162,000 miles on it to which I have changed oil every 5,000 miles (roughly). The car ran beautifully. Well this last time, as I discovered a week later, I added too much oil by 1.25 quarts maybe?. I always check the dip stick afte...