2002 Buick LeSabre 3.8 bank1 running too rich
#1
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2002 Buick LeSabre 3.8 bank1 running too rich
What exactly is bank 1 ? What controls bank 1 maf map ? What controls bank 2 ? I had recently put a k&n air filter in and for got to tighten up the intake tube tube to throttle body and air filter box tube breather tube some how came off throttle and drove it like it for awhile could I have gotten moisture on the mag and ruined it with the breather tube bot being properly on or any insight why it'* running rich
#2
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Well, in this particular case/engine, bank 1 and bank 2 are the same thing, because there is only one pre cat O2 sensor........but for future reference bank one is the side of cylinders that has #1 cylinder and bank 2 is the side of cylinders that has #2 in it......
There are TSB'* on K&N filters....the oil from them can contaminate the MAF and cause problems....
What I would do, is remove the K&N filter, and install an OEM one, clean the inside of the long tube with Brake Klean........remove the MAF sensor and get a can of MAF cleaner to clean the sensing elements of the MAF......put back together....clear code(*).....and then see if this solves your problem....
There are TSB'* on K&N filters....the oil from them can contaminate the MAF and cause problems....
What I would do, is remove the K&N filter, and install an OEM one, clean the inside of the long tube with Brake Klean........remove the MAF sensor and get a can of MAF cleaner to clean the sensing elements of the MAF......put back together....clear code(*).....and then see if this solves your problem....
#3
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Well, in this particular case/engine, bank 1 and bank 2 are the same thing, because there is only one pre cat O2 sensor........but for future reference bank one is the side of cylinders that has #1 cylinder and bank 2 is the side of cylinders that has #2 in it......
There are TSB'* on K&N filters....the oil from them can contaminate the MAF and cause problems....
What I would do, is remove the K&N filter, and install an OEM one, clean the inside of the long tube with Brake Klean........remove the MAF sensor and get a can of MAF cleaner to clean the sensing elements of the MAF......put back together....clear code(*).....and then see if this solves your problem....
There are TSB'* on K&N filters....the oil from them can contaminate the MAF and cause problems....
What I would do, is remove the K&N filter, and install an OEM one, clean the inside of the long tube with Brake Klean........remove the MAF sensor and get a can of MAF cleaner to clean the sensing elements of the MAF......put back together....clear code(*).....and then see if this solves your problem....
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CathedralCub (01-18-2018)
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#6
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cleaned the hell out of the maf with the maf cleaner and took out the k&n filter replaced with fram reset code hopefully that does the trick on it running rich I called k&n about what was going on the rep was cool enough to send me a check for $40.00 on my troubles I had to show him pictures of it being destroyed stabbed a few holes in it with screw driver.
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CathedralCub (01-24-2018)
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