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Old 08-05-2014, 09:47 AM   #1
swansburg
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Join Date: Jul 2014
Default 2002 wrx bucking at 4k rpm

Im looking into buy an 02 wrx with 147k miles and i has some issues that i would like to try to figure out. Basically the problems it has is that it outs up a p1507 code and sarts to buck a littlr around 4k rpm and then smoothes back out around 5k.

Here is part of the description the explains the issues with the car from craigslist:

So here are the problems, the car would buck a little at around 4000 RPM's so I brought it to the garage and they told me my turbo needed to be replaced, so I did and still had the same problem. Finally I brought it to Subaru and after looking through it for a while they told me I would have to change all the vacuum lines and one of the o2 sensors. So I replaced the o2 sensor with an aftermarket Denso along with the fuel filter and after I started it up the RPM's at idle went higher than normal and after a minute it threw a new code(p1507). It also has an exhaust leak. This car is beautiful and I know I could easily get a lot more if I fixed it up myself but I don't have a lot of time.



So i beleive i can fix the p1507 code by throwing in a new neutral switch, hopefully that could work. MY problem is the bucking issue. It could be a number of things, vacuum lines, fuel pump, maf. Mostly i would think it would be the vacuum lines since the dealership told him those needed to be replaced and he did not do that.


Any help would be appreciated, i would love to buy this car if i can figure out what was wrong with it.
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Old 08-05-2014, 01:22 PM   #2
D-rock240
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Join Date: May 2011
Chapter/Region: MAIC
Location: West of Baltimore, MD
Vehicle:
2011 WRX GV SSM
2001 Legacy BH 5MT DD

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Quote:
Originally Posted by swansburg View Post
Im looking into buy an 02 wrx with 147k miles and i has some issues that i would like to try to figure out. Basically the problems it has is that it outs up a p1507 code and sarts to buck a littlr around 4k rpm and then smoothes back out around 5k.

Here is part of the description the explains the issues with the car from craigslist:

So here are the problems, the car would buck a little at around 4000 RPM's so I brought it to the garage and they told me my turbo needed to be replaced, so I did and still had the same problem. Finally I brought it to Subaru and after looking through it for a while they told me I would have to change all the vacuum lines and one of the o2 sensors. So I replaced the o2 sensor with an aftermarket Denso along with the fuel filter and after I started it up the RPM's at idle went higher than normal and after a minute it threw a new code(p1507). It also has an exhaust leak. This car is beautiful and I know I could easily get a lot more if I fixed it up myself but I don't have a lot of time.



So i beleive i can fix the p1507 code by throwing in a new neutral switch, hopefully that could work. MY problem is the bucking issue. It could be a number of things, vacuum lines, fuel pump, maf. Mostly i would think it would be the vacuum lines since the dealership told him those needed to be replaced and he did not do that.


Any help would be appreciated, i would love to buy this car if i can figure out what was wrong with it.
Personally I would look for another one. Too many maybes in there.
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Old 08-08-2014, 03:58 PM   #3
swansburg
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Originally Posted by D-rock240 View Post
Personally I would look for another one. Too many maybes in there.
Selling the car for a fraction of what it is worth, i would just love to bring her back to life
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Old 08-08-2014, 09:04 PM   #4
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02 with 147K posting in the Warranties forum?
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Old 08-09-2014, 07:43 AM   #5
blackfang
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98 Z/28, VN 900 custom

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02 with 147K posting in the Warranties forum?
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