2000 Volkswagen Jetta Rough idle, running rich.

JDANDRADE

MEMBER
2000 VOLKSWAGEN JETTA
190,000 MILES

Okay, after driving through water, the engine stalled out. After drying all the electrical connections, I was able to get the car to start again.

Now the car is running rich, and barely wants to stay running.

Where should I go next? What could the problem be?

5 Replies

EXOVCDS

MECHANIC
1,883 POSTS

1.8T, 2.0, 2.8L?

Which electrical connections were dried?

How do you know it's running rich? What are the short term and long term Fuel Correction values?
Fuel pressure? Coolant Temperature sensor values?

It's most likely still the after effects of the water on the ignition system. Remove the Ignition Coil Pack and
check for cracks (common).

Thomas

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Friday, September 13th, 2013 AT 5:47 PM

EXOVCDS

MECHANIC
1,883 POSTS

Any update? I can't suggest other options if you don't reply.

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Saturday, September 14th, 2013 AT 9:32 AM

MHPAUTOS

MECHANIC
31,937 POSTS

Check codes and ensure all is clean and dry, we do need feedback to assist with helpful information.

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Saturday, September 14th, 2013 AT 7:31 PM

JDANDRADE

MEMBER
2 POSTS

First off, I would like to thank you guys for the help.

Here is an update.

Everything is clean and dry, I live in Arizona, and I can be assured there is no water left in the vehicle.

I have checked the oil dipstick, and there are no water droplets. Also, I removed the ignition coil, and it is dry and clean, with no damages.

To my guess, I am thinking the MAF could be fried.

Also, my Catalytic converted is shot, it is rattling and reducing my power.

These are easy fixes, but I am just a broke college student.

I guess my next step is to clean the air filter and change the spark plugs.

Hopefully that will help.

Any advice?

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Sunday, September 15th, 2013 AT 7:25 PM

MHPAUTOS

MECHANIC
31,937 POSTS

You will need to replace the cat, even if you get a second hand one from a wrecker will be better that nothing, and run a scan for codes and report them here.