changed suction pump, and it's STILL not working!

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changed suction pump, and it's STILL not working! - 5/11/2008 5:09:50 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline okay, i got my car diagnosed by Audi and they said i needed a vacuum valve and a jet pump valve(suction pump). i just replaced them both new and now it's STILL shaking after i unplugged the battery overnight to reset the computer. what do i need to do?! Post #: 1

RE: changed suction pump, and it's STILL not working! - 5/11/2008 5:40:53 PM    sineo Posts: 1503 Joined: 7/29/2007 From: Sh*t happens when you party naked. Status: offline You need to go to AutoZone and have them scan your car (free) and then post the codes here or plug them into the search. _____________________________ 1999 A4 2.8 Quattro Avant SpeedTuning chip, painted lowers, black e-codes, 4300K, 20% tint, and face lift fogs. My Audi''''s got enough balls for the both of us. (in reply to PRican1.8T) Post #: 2

RE: changed suction pump, and it's STILL not working! - 5/11/2008 7:55:46 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline i've gotten the same codes. p0301-p0304. went to dealer and they said i needed vacuum check valve and jet pump valve (suction pump) so i replaced them, and it's still shaking on cold start! i don't understand! (in reply to sineo) Post #: 3

RE: changed suction pump, and it's STILL not working! - 5/11/2008 10:03:16 PM    sineo Posts: 1503 Joined: 7/29/2007 From: Sh*t happens when you party naked. Status: offline What year? Could be coilpacks or spark plugs. _____________________________ 1999 A4 2.8 Quattro Avant SpeedTuning chip, painted lowers, black e-codes, 4300K, 20% tint, and face lift fogs. My Audi''''s got enough balls for the both of us. (in reply to PRican1.8T) Post #: 4

RE: changed suction pump, and it's STILL not working! - 5/11/2008 10:47:31 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline i've changed everything. fuel injectors, spark plugs, coil packs, ECT sensor, MAF is good, and now the vacuum check valve and suction pump, still, nothing (in reply to sineo) Post #: 5

RE: changed suction pump, and it's STILL not working! - 5/12/2008 7:08:21 AM    auditech79 Posts: 5081 Joined: 2/24/2007 From: Sacramento, CA Status: offline Well there are 4 vaccum check valves in your engine, did you replace them all or just one? Does your engine sound like its sucking in air or not? _____________________________ 00 A4 1.8T (in reply to PRican1.8T) Post #: 6

RE: changed suction pump, and it's STILL not working! - 5/12/2008 9:47:55 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline i only replaced one cause the dealer said i needed one and it was obvious which one i needed to change (i also blew through it after i took it out to check and air went through both sides) the suction pump was leaking a bit of oil. i can't really hear anything different except when i give it gas you can hear that it's "misfiring" (in reply to auditech79) Post #: 7

RE: changed suction pump, and it's STILL not working! - 5/13/2008 7:13:56 AM    auditech79 Posts: 5081 Joined: 2/24/2007 From: Sacramento, CA Status: offline You might have an ignition problem then, you need to have it scanned again, just go to autozone if you don't have a VAG COM, they can pull the codes for free. Then post the codes back here. _____________________________ 00 A4 1.8T (in reply to PRican1.8T) Post #: 8

RE: changed suction pump, and it's STILL not working! - 5/13/2008 9:14:36 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline would an ignition problem fix itself after the engine's warmed up? (in reply to auditech79) Post #: 9

RE: changed suction pump, and it's STILL not working! - 5/16/2008 3:59:45 PM    PRican1.8T   Posts: 98 Joined: 12/21/2006 Status: offline bump please! (in reply to PRican1.8T) Post #: 10

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