please help! Won't go over 15mph - Kia Forum
 
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post #1 of 4 (permalink) Old 04-22-2008, 05:06 PM Thread Starter
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Default please help! Won't go over 15mph

hi all, new to the forum, I have this problem with my 04 amanti and have looked for days to try and find possible solutions. My car idles at 2000 rpm and when I press the brakes I hear a thunking sound coming from near the air intake, then when I drive it crawls to 15 mph even when I floor it and won't go any faster!!! Check engine light is on and here are the codes I came up with, what weird is most of them have to do with all the o2 sensors and the mass air flow sensor, p1118 p1178 p0155 p0161 p0135 p0141 p0102. Any help or suggestions would be much appreciated and thanks on advance
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post #2 of 4 (permalink) Old 04-23-2008, 03:52 PM
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Sounds like perhaps you may have a bunch of things going on.......I know what I would do at this point, instead of trying to second guess everything, have the dealership check it out and fix it since you can't drive it very many places except parking lots, etc at 15 MPH.......RR
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post #3 of 4 (permalink) Old 04-24-2008, 11:29 AM
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Originally Posted by rayray View Post
Sounds like perhaps you may have a bunch of things going on.......I know what I would do at this point, instead of trying to second guess everything, have the dealership check it out and fix it since you can't drive it very many places except parking lots, etc at 15 MPH.......RR
BTW..........as I have always requested-- if you find out what the problem(s) is/are and what the fix is, how about reporting back to the forum so as others might benefit ..... RR
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post #4 of 4 (permalink) Old 04-24-2008, 11:35 AM
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Originally Posted by bogdan111 View Post
hi all, new to the forum, I have this problem with my 04 amanti and have looked for days to try and find possible solutions. My car idles at 2000 rpm and when I press the brakes I hear a thunking sound coming from near the air intake, then when I drive it crawls to 15 mph even when I floor it and won't go any faster!!! Check engine light is on and here are the codes I came up with, what weird is most of them have to do with all the o2 sensors and the mass air flow sensor, p1118 p1178 p0155 p0161 p0135 p0141 p0102. Any help or suggestions would be much appreciated and thanks on advance
There is one problem that could cause all those codes, and that is a leak on the inlet manifold.
The noise when you hit the brake may be related as the brake booster uses vacuum from the inlet manifold.
Search in the area of the inlet manifold for a leak such as a pipe come off.

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