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Re: 1999 volkswagen passat
Not sure where a cheap Rubber elbow is located on a passat. But do take off the coil covers. They are located under the engine cover. They are the 4 square caps. They come off with a allen wrench i believe 5mm. Then pull them off. Due this 1 at a time. Once off look down the hole with a flashlight.
And look at the rubber surrounding the coil. Their should be no moisture.
If their is moisture try blowing it out with compressed air.
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Hi. You have misfires on cylinders 4, 5 and 6. If there are no faults on cylinder 1, 2 and 3 then I would check the power to the left bank injectors. Also check spark plugs and ht leads. If there are running issues then this should be an easy fix. If the faults are very intermitant then it can be a bit tricky to isolate.
You have random misfire codes as well as misfires detected on cylinders #2 and #4. P0011 is likely the root cause of the misfire being detected P0011 VOLKSWAGEN - 'A' Camshaft Position Timing Over-Advanced Or System Performance problems.
Possible causes- Dirty engine oil - Low engine oil level - Camshaft actuator circuit open or shorted - Camshaft actuator circuit poor electrical connection - Faulty camshaft actuator
There may be a factory bulletin on this code, check with the VW dealer on that. Possible defective Camshaft actuator.
typically any flashing light is a misfire, which could create cat convertor failure. codes will be something with 300 via 301 cyl 1, 302 cyl 2 etc. Many things can cause this via plugs, wires, coolant temp sensor, maf and so on. Suggest getting it checked out asap.
Coils and plugs are not the only things that can cause misfires. Misfires can be caused by vacuum leaks, low compression, faulty fuel injectors, clogged EGR ports (on vehicles with individual ports for each cylinder), blown head gaskets, burned valves...you can spend a LOT of money on parts by just going in and replacing things without diagnosing WHY the cylinder is misfiring.
A flashing cel indicates misfiring. A common problem is a bad ignition coil. The easiest route for diagnosis is the check the trouble codes(autozone and some other parts stores will scan for free, or an OBDII code reader is not too expensive to buy). The code should tell you which cylinder is misfiring(PO301 means cyl #1, 302 cyl #2, etc). Once you know which it is, swap the ignition coils around. If you have a #1 misfire, swap coils 1 and 4, clear the codes, then check it again. If the misfire moves, you know you've got a bad coil. If the misfire is air or fuel related, as with an intake leak, other codes should come up as well as the misfire.
Hello you will now need to disconnect the engines battery using the proper sized wrench or socket.Ounce you have disconnect the battery for a couple of minutes now reconnect the battery this should reboot the engines computer keep in mind just like at home on your PC when you install new hard wear you must restart or reboot your computer for the hard drive to recognize the updates and hard ware.
very unlikely to be fuel filter. misfires on petrol engines are usual down to the ignition system,possibly Plugs or leads if fitted. plugs should be replaced every 40,000 miles, not an expensive item either.