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P1189 / 1997-528i (((( NEED HELP ASAP ))))

 
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John Vollenweider



Joined: 02 Mar 2006
Posts: 52

PostPosted: Mon Jan 23, 2012 12:49 pm    Post subject: P1189 / 1997-528i (((( NEED HELP ASAP )))) Reply with quote

HELP, I NEED SOME ADVISE.

I had code P1189 Bank 1 sensor 1. I replaced back pre cat o2 sensor. I still had same code , so I replaced the other pre cat o2 sensor. The code is still present and engine has a miss at idle and when accelerating from dead stop. It also misses bad when accelerating at 40-50 mph, lacks power etc.
I cleared code and light comes right back on. I was wondering if the Cat is the problem, possibly clogged etc....

Please respond with your thoughts.
John
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walshja



Joined: 03 Apr 2001
Posts: 1139
Location: guilford, ct, usa

PostPosted: Fri Jan 27, 2012 7:22 pm    Post subject: Reply with quote

John, my wifes car had similar problem, and I think it was throwing the same codes. I changed O2 sensors, plugs, and some other things before taking it to the dealer. It had a few leaky vacuum lines.

My cat is bad on the car, due for inspection next week. Gotta go buy the cat clear stuff, which will turn off the check engine light, allowing me to pass emissions!!
_________________
joe

1994 325iC, 195k miles
http://home.comcast.net/~walshja/index.html <--- check it out

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John Vollenweider



Joined: 02 Mar 2006
Posts: 52

PostPosted: Sun Jan 29, 2012 3:52 pm    Post subject: cat clear stuff ? Reply with quote

walshja wrote:
John, my wifes car had similar problem, and I think it was throwing the same codes. I changed O2 sensors, plugs, and some other things before taking it to the dealer. It had a few leaky vacuum lines.

My cat is bad on the car, due for inspection next week. Gotta go buy the cat clear stuff, which will turn off the check engine light, allowing me to pass emissions!!

What is the CAT clear stuff ?

John
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