Passat (B5) :: 2000 1.8T Vacuum Leak On Cold Start - Emissions Workshop 1 Code Flashing
Oct 26, 2010
I have a 2000 Passat 1.8T. When I start it up in the morning I hear a loud obnoxious noise like a vacuum leak from the engine compartment. It lasts for about 1.5 minutes then runs normally. After about a minute it starts up again and only last for about 7 seconds...ish. When I drive it afterwards, less that a half block or so, the CEL light goes on after 1 beep. Also, at that time I get a messages from the instrument panel that says "Emissions Workshop 1". I've read that it could be a simple damaged vacuum hose to the secondary air pump. Definitely a huge price difference to repair.
This morning is was colder outside than usual and the dash kept beeping and flashing the "Emissions Workshop 1" code intermittently.
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I own a 2000 V6 Passat with 68K miles. For the last 3 months, I have had check engine & emissions workshop lights. During the last month, the car will not start at random times (although never first thing in the morning, only after it has been recently driven); this will happen 1 or 2 times a day. After waiting 1-2 minutes, the car will usually start on the 2nd try; it has always started by the 3rd try. Once started, the car runs fine, although there is initially a strong gas smell. I took the car to a local mechanic, who changed the air mass meter, which had no effect. The mechanic now wants to change the O2 sensors. Unfortunately, I do not know the codes. By the way, the car had an emissions workshop light in 12/04: the light went off when the dealer did work under a "WE recall", which I believe means that it replaced the secondary air vacuum line.
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Can I get an explanation of the components involved in the EPC system/circut. Car gets wet and epc light comes on with emissions workshop. I don't want to get rid of my Volkswagen Passat 2000.
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Car is a 2000 Passat Wagon 1.8T ATW FWD
I get the P1128 code and Emissions Workshop warning most of the year, then it cycles off in the summer. It went off yesterday, back on today, and I imagine it will go off again for weeks/months as the weather heats up.
Things I've tried so far:
Replaced MAF sensor
Replaced MAF wiring harness
Replaced front 02 sensor
Replaced air filter
Replaced cracked vacuum tubes, at least those accessible from the top. Some of the hidden lengths theoretically could be at issue but a mechanic said they were ok.
What I've not replaced is the secondary air pump. (Mechanic told me it's dry and checks okay.)
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when i start up my car and start driving it a light comes on that says emissions workshop what soes this mean is it a aabd thing???
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I have a 2000 1.8L that's great. I have seen a reference to Vacuum leak diagnosis. I have a check engine light on and it has been for a while. the car still runs well and gets fine gas mileage. Coed is 1136. Is there a specific hose I should check?
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I'm the orgional owner of a 2001 Passat 1.8T with manual transmission...It has 93,000 miles on it.
Last week, the check engine light came on and a "Emissions Workshop!" message light came on. It was on for a few days,then disappeared for a few days,only to come back.
I took it to Autozone for a reading. Here's the results:
"The PCM has determined that during testing,the fuel system for bank 1 was too lean.
Definition: Fuel trim bank one condition
Explanation: The powertrain control module uses the oxygen sensor to calculate the air/fuel ratio of the engine.
The computer has recognized a rich or lean condition on one engine bank only.
Probable Causes:1. If bank one and two codes set together fuel pressure or MAF Sensor
2. Oxygen sensor defective
3. Ignition misfire-repair
4. Fuel injector repair.
Someone here asked if my oil was recently changed-It was.
Driveability hasn't been affected,nor has mpg. The car drives as normal.
I need to go on a 1,000 mile trip in a few days,and don't think I'll have time to have the car serviced.
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I bought a 2000 Passat GLS w/ the V6 a couple weeks ago, and the very next day after buying it, the CEL came on and something popped on saying Emissions Workshop. I waited a couple weeks to see if it would turn off, but it didn't so I took it to a mechanic.
The first time, they just said a couple codes were off so they reset the computer. About 20 miles later, the lights came back on. I took it back and they hooked it up to their computer again.
They said the o2 sensors were perfect, and it was most likely some sort of resistance in one of my cats. The car runs absolutely perfect. I just wanted to get some feedback from ya'll because I do not want to pay the money to have a cat replaced if I don't have to.
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My emissions workshop light is staying on now in my passat. I don't have a Vag-Com cable for my laptop yet so I scanned for codes with the generic code scanner at Advance Auto. It came up with something about the downstream 02's low voltage or something close to that. It has just over 100k on it now... is this a common issue with these cars? Is it usually the o2's that are the culprit or is it usually a Cat problem? I replaced the PCV hoses (those crappy wire loom looking pieces that fall apart under the engine covers) with much nicer fuel hose and barb fittings thinking that they might have been the culprit, but that was before I scanned it, it obviously didn't work. 2000 LX 4-Motion...
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I have a 2004 B5 130BHP and the display occasionally reads Emissions Workshop.
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This began as a troubleshooting exercise for a P0442 code (2002 model) indicating a leak in the evap emissions system. Often caused by simple things like a loose/poorly sealing filler cap. Not this time
It's a neat design, tucked away up in the fender well. Even sports a very effective stone guard (plastic shield) which hides all that tubing from view. But the shield also traps all the road salt and mud and packs it into the crevices between the tubes where it stays from one winter till the next. Even a powerful car wash probably can't dislodge the caked on mess once solidified.
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When I started my car the check engine light came on and it emissions workshop message came up. What is this? My car seems to be running fine.
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On Sunday the high-pitched beep went off while driving, followed by the orange engine light to the left of the speedo needle and EMISSIONS WORKSHOP coming up on the computer.
Everything is normal. Revs are fine, temp is fine, no other lights come on. I checked the coolant and that is fine too. This happened about two months ago, but it stopped after a couple of days.
Could this be something like an O2 censor?
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I own a cirrus 2000 which lately have been giving me trouble. I took it to a mechanic for tune up and ended up having a lot of issues. At the moment I am having a lot of rattle or hard driving. The car shakes alot and recently I took it for a diagnostic and the result was P0303 and P0305 and vacuum leak. What causes this problem and how can I get it fixed?
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On New Years day the water pump on my Golf MK4 broke and all coolant leaked out. I had that replaced together with the cam belt. When I got the car back, the next day when the car was starting from cold I noticed it was very rough when idle, car about to stall then RPM jumps, drops and jumps up again. I drove for a minute and when stopped at some lights, the car juddered and "Emissions Workshop" warning came up along with 'ECU / engine warning light' and 'Brake system / brake fluid warning light'. Drove a couple more minutes and all warnings disappeared. Was fine for rest of the day.
Same thing happened the next morning. Once warmed up it is fine for the rest of the day unless the car is left undriven long enough for it to be completely cold. I know nothing about cars so have relied on my local garage. I was told the diagnostics reported a fault with the coil pack so had that changed along with plugs and leads. The next morning the same problem was still there. Then told could be coolant temperature sensor so had that replaced too. Still same problem.
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About a month ago I had my SES light go on and I took it to the auto parts store and they said it was a small emissions leak. I am not sure of the code though. I took my car to the shop and they said that a sensor that had something to do with the exhaust was bad or unplugged.
My SES light came back on about about a week ago and I had it tested and it said the same thing. "Small emissions leak" This time I got the code and its P0442. The shop is closed today and tomarrow so what and where the sensor is located? Or if its the same thing?
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I own an '01 Honda Accord LX with the ULEV engine and 178k on it. My CEL light came on about 6 months ago. Ran the scanner and it showed a P1457 (EVAP Leak). Waited until now when my inspection was due and expected it to be caused by the EVAP shut valve as I read that's often the cause of the problem with this code. Mechanic said that it can't pass inspection because of the OBD fail but that the diagnostic scanner showed everything functioning properly, including my assumption about the faulty shut valve.
He reset the code and said to drive it the 50 miles for the system to ready itself and bring it back in. As I've reset the code several times over the 6 months to see if it would self correct, I'm pretty confident it will come back on. My questions are, is it possible I've done damage to the onboard computer by not addressing the underlying problem 6 months ago? Are there emissions problems that are not checked by the diagnostic tool that the mechanic should be looking for?
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When I got my 60K service last weekend, the dealer called me and explained that I had a "very small internal leak fro an emissions canister that was leaking into the intake/manifold". He said something like that. He also said that it doesn't do anything to the performance of the car, but that the leak will increase over time and will throw a MIL.
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Last week my check engine light went on. Some hoses needed replacement and the mass air flow sensor was out of spec - I had it replaced as a preventive measure.
Now the car seems to have a subtle oil/exhaust/acrid smell, especially after car has been driven 15 minutes or so and in stop and go situations. When I step outside the car, an acrid smell appears around the engine and tailpipe area.
Check engine light is off - I took it back and they could detect nothing amiss - granted the whole garage smells like oil and exhaust. They did find a "class 1" oil leak on the rear valve cover - just a bit of oil on the rim - not yet dripping.
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I am getting a code for my 2003 Accent (65,000 miles). The code is P1401 and it is telling me the fix is replace Evaporative Emissions Canister. I asked my mechanic about 2 months ago about this and he wasn't too concerned.
We are not in an area where they do Emission testing. I will be driving back home to WI . and want to know if I should be concerned. The round trip is about 900 miles.
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As title states, I scanned my gti and got P0420 (nothing new here) and P1136. I did some searching and looks like vacuum leak can cause this, however I also read that it'll affect my idle. I replaced MAF 2 years ago with a brand new OEM one, my idle is NOT rough, at all.
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