:confused:

my check engine light turned on so I changed oil (it was time) since I'm in miami still.. I had it don.e here two days ago. They cleared the engine sig.. The next day it turned back on.. Went back to same vw serice in miami and they ran a diagnostic and replaced the some emission sensor by gas tank.. Check engine light was cleared. Welll a few hours later check engine light is back on :mad:

wtf is going on? I just recently had a remote start and alarm installed? No check engine light came on until I needed my oil changed. Need advise.. I am heading back to jersey now .. And plan to visit my local vw service.. But I don't want to keep running back to service every few days..

anyone with similar issues? And how to get this cleared once and for all?

It really depends what fault triggered the CEL. To diagnose it you will need a dealer VAS tool or the VCDS. You need to find the fault code so you know what the fault is...

I'd suggest jumping on vwvortex and try to find someone near your area who has a VCDS. It could be something really common with the 2.0T engines and there is tonnes of info on vwvortex

TO summarize... while in Miami the check engine light turned on.. but I need to change the oil (which I did at VW service in Dade County) and cleared the light.. the next day.. it was back on... Went back to Dade VW and they ran they diagnostic and found NO issues. The next day.. I was getting ready to start my ride back to JERSEY and it turned on AGAIN.. i hauled A$$ to the Dade VW service and they ran diagnostic and found some sensor for gas fumes was faulty.. They changed it and cleared it.. an hour into the drive.. guesse WHAT turned back on.. engine light

When i got back to Jersey.. i made an appointment with VW dealer and just got my eos back yesterday. They replaced the valve for turbo and cleared it.. no other codes came up. Today i was enjoying the heck of my TOPLESS eos and noticed my check engine light was BACK ON!

I called the VW service and on the first nasty, chilly or wet day.. I am sending it in for service... But at this point I am frustrated for lots of reason (just the fact that I depend on others for rides). I told the VW service to hold the eos for a day or two..

Can someone tell me in LAYMAN's terms.. what is going on? Is this normal? Am i going to go crazy going back and forth to the dealer?

on a good note.. I was soo upset.. I kryotoxed the heck outta my car, as I waited for the VW service to call me back...

PLEASE.. anyone understand these issues? and help direct me in dealing with the issues and frustration?:mad:

I may be wrong, so take this with a grain of salt. OBDII is primarily to diagnose problem with emission issues, thus it indicated a problem with the gas fumes around the fuel filler opening. The CEL does not tell you when to change your oil. You may have another problem with an emission sensor such as fuel pressure or a problem with the exhaust system. I have found that there may be more that one fault code when the CEL comes on.

Steve

gas fume sensor, I assume this is the oxygen sensor, are 2 sensors placed in the exhaust to measure air/fuel mixture before and after catalytic converter. If these give faulty readings the CEL will come on, as the car assumes the mixture isn't right or the catalytic converter is not working as it should.

Valve on turbo, probably the diverter valve? You will notice when diverter valve breaks, you will lose a lot of power and hear air escape. Other valves on the turbo aren't really replacable

To me, a CEL that keeps coming back should be the same error code which wasn't rectified by changing those two parts. You should at least get someone to get this code for you, then you can at least get an idea of what fault it is and narrow down the culprits. Do you have receipts that those parts were changed? Sometimes the easiest way to get rid of a customer with a CEL from a dealer's point of view is reset it, and hope it doesn't come back by by the time the customer picks up the car.

Oil warnings have their own indicators on the dash, the CEL is usually not affected. Good luck with it

how do I get the codes?? They kep telling me it's different issues... I am droppping it off next week and I told them that if they don't clear the issue I'm driving rigt back.. No appointments and dropping it off.. It's beyond frustrating!

gas fume sensor, I assume this is the oxygen sensor, are 2 sensors placed in the exhaust to measure air/fuel mixture before and after catalytic converter. If these give faulty readings the CEL will come on, as the car assumes the mixture isn't right or the catalytic converter is not working as it should.

Valve on turbo, probably the diverter valve? You will notice when diverter valve breaks, you will lose a lot of power and hear air escape. Other valves on the turbo aren't really replacable

To me, a CEL that keeps coming back should be the same error code which wasn't rectified by changing those two parts. You should at least get someone to get this code for you, then you can at least get an idea of what fault it is and narrow down the culprits. Do you have receipts that those parts were changed? Sometimes the easiest way to get rid of a customer with a CEL from a dealer's point of view is reset it, and hope it doesn't come back by by the time the customer picks up the car.

Oil warnings have their own indicators on the dash, the CEL is usually not affected. Good luck with it

You can take your car to Autozone here in the west or Checker and they will pull your codes for free. Back east you may have different part supply houses, but most will pull codes for free, just go in and ask. They hook up their OBDII computer and pull the codes, then take them inside and plug them into their store computer and tell what each code relates to.

Steve

had a friend who has a program and checked out the check engine issue.. just a small minor issue that was adressed and he cleared it! so thank god its not major! and the light is out.

what is this small minor issue?
The dealer would have made sure you don't have the light when they gave the car back to you.
Did he save the fault code, can you post it up? It's easy to clear the fault... but it's likely to come back based on what you've been experiencing...

The problem was (and its mentioned in this post much earlier).. is that the dealer would fix the issue and "clear the code" and within hours or a day.. it was back on.. take it back.. fix the issue and clear and withing hours or a day it was back on.. This went on about 4 times in 1 week.. got tired of going back n forth.. they did give it back to me cleared.

My friend checked the codes and corrected a very minor issue.. (i don't have the code).. and the lights has been off for a while now.. (compared to the dealer).. I still have to go back to get serviced (for another issue) and I made the appointment.

what is this small minor issue?
The dealer would have made sure you don't have the light when they gave the car back to you.
Did he save the fault code, can you post it up? It's easy to clear the fault... but it's likely to come back based on what you've been experiencing...

hey guys my check engine light is going on all the time i have been to the autoelectrican few tiems and he has scanned everyhting with the computer and said that its coming up with no code , but after he reset's it couple days after it keeps comming back its driving me crazyy i hope its nothing major :( buy the way i got the VW golf 1.6 tiptronic

any one have any suggestionsA?

What scanner are they using? I'm only a beginner on this stuff but simple cheaper scanners generally read the OBDII standard faults, whereas the more expensive read the CANbus and there is a lot more data. VAGCOM from Ross-Tech shows just about everything.

I suspect if you had the car scanned at a VW dealership you could get a different picture. The engine fault light is one light that can be brought on by any one of several different things and a fault can be intermittent (hard to detect) or produced by a combination of events. Decent fault scanners give lots of data feedback about how the engine is running and it takes some skill to look at the data and home in on a problem. If a tester clears a fault code (DTC) that doesn't mean the problem has gone away.

The ECU stores the 'once event' of a fault it calls a 'temporary event' which doesn't put the light on. If the same fault never comes back after some time or distance of driving then the stored temporary fault is self cleared. If the same fault comes back, the light stays on. When the tech. clears the fault codes the light goes out but temporary codes can still be left (for others to read). If the fault really has gone, the temporary code eventually goes away, if the light comes back on the fault is still there.

There are so many different fault possibilities that it is pretty impossible to say which one is putting out the engine fault. But if the light is on, there is a fault code but your auto tech. may not have the kit to read it. It's a bit like getting the BSOD up on a computer!

If you are getting persistent problems it's probably worth thinking about getting a decent scanner. That way you can regularly check for the temporary fault codes and get early warning, before the light comes on.

From what I've learned, some engine faults start as warnings to get them fixed, but there's a risk if you leave a fault for a long time something else expensive could break and put the car into 'limp home' mode. To give an example, I just fixed an exhaust pressure sensor on my tdi. The car was driving perfectly normally. If I had carried on driving the car for months with the engine fault light lit, I suspect an expensive blocked DPF (diesel) would have ocurred, leaving the car in limp home mode and dead in the water.

Picked up my Eos 2 weeks ago as it was being checked because of a error with the roof failing to open (they could not find the problem and not its intermittent) friday i got the exhaust gas error appear (little yellow engine) have been asked to take it back for a check and pay £45 for an inspection just been out to check the car and the lights still on plus a little vibration :(

Picked up my Eos 2 weeks ago as it was being checked because of a error with the roof failing to open (they could not find the problem and not its intermittent) friday i got the exhaust gas error appear (little yellow engine) have been asked to take it back for a check and pay £45 for an inspection just been out to check the car and the lights still on plus a little vibration :(


This is becoming a common problem due to failure of the exhaust gas pressure sensor as detailed elsewhere in this forum, see following link:

http://www.vweosclub.com/forums/showthread.php?t=4269

This is a warranty item and you should not be charged for this replacement. Note, recalibration of the engine management electronics is mandatory when the sensor is replaced.

Just for reading codes, you don't needs VCDS (VAG-COM)... This little unit if sine for pulling off simple codes...

http://www.gendan.co.uk/product_GDVAGPRO.html

However, it did seem to report the wrong code when I disconnected the MAF sensor... OBD2 picked it up correctly though, so if you use it, always check both for engine fault!