Question about 2002 Volkswagen Passat

1 Answer

Misfiring under load

The car has 1.8t and i put in new plugs and 2 coils and it still misses. The milage has dropped alot. If you drive it easy, it doesnt seem to miss, but if a little throttle is applied, it misses and then it seems to miss even at idle. It also misses then even at cruising speeds on the e-way and the car shakes! After it sits for a while, it starts and idles ok until you gass it, then the miss comes back!. I did change the plugs twice to make sure i didnt get a bad plug or 2. Any help I would love. Thanks, Dan

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 9 Answers

Im an independant mechanic with a customer who appears to have exactly the same fault as yours. I carried out a thorough service initially to cover all areas. The fault remains. His symptom is of massive over boosting from the turbo combined with very loud induction roar. The diagnostic results I ran also confirmed this. However, a new and needless to say very expensive turbo had been fitted prior to my customer purchasing the car last year and unbelievably he had been quite happy living with the extreme symptoms. As yet I am unsure if the correct type turbo had been fitted before hand and dont want to suggest a second replacement. its a very tricky fault to diagnose but Im sure the answer is out there? Fingers crossed. P.S Certain models have a unique mass air flow meter, which are prone to failure. Has yours been checked? Regards Chalky 'Boa Rebuilds' Southampton

Posted on Jan 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2000 ranger 4.0 misfire and running lean bank 1 and 2


What config motor? I'm confused is it a 4 litre straight 6 or a V configeration. If straight 6 spray aerostart around nr 1 intake manifold to head if idle picks up you need a new intake gasket this is very common. is it missing at idle, under load (up hill) or both. does it have coil overs (coil on each plug or old leads set up?

Oct 15, 2012 | Ford Ranger Cars & Trucks

2 Answers

Motor will miss at times can see volt meter will drop 1-2 volts when at idle at 35-65 mph a miss or **** off and on fuel new plugs & wires,added fuel treatment,had analized shows no falts


The battery could be gone or you have an
Alternator issue

Any thing added to the fuel tank is not necessary
& just a waste of money. Those products are not
a subsitute for a repair

You do not need new plug wires every time you visit
a repair shop. They last for 15 years if handles correctly

Jul 26, 2012 | 1994 Ford Econoline

1 Answer

Whats causing my truch to vigoriously shake when idoling and between 50 to 60?


A misfire should have Coded on the check engine light. You have 2 systems for each cylinder. Gas and spark. A dirty injector can cause a miss. A bad plug, wire, or coil on plug (if this truck has the newer system) can cause a miss.

You can try a new injector for the one cylinder and see if that helps. Really depends on which engine you have for difficulty in getting to the plugs. The 5.4 series had deep boring for plugs and there are books about this problem. I believe the coil on plug type coil has a resistence of 10,000 Ohms from the top terminal to the base of this coil. It may need to be benchchecked.

As your service light did not work, perhaps you should find out if its lightbulb is missing. I hope my solution is helpful.

Mar 28, 2012 | Cars & Trucks

1 Answer

My engine misses when accelerating and when rpm exceeds 2,000. Check engine code was for cylinder #2 misfire. I replaced the sparkplug and wire on #2, #4, & #6 but, have not figured out how to


Maybe try waiting untill dark ,fire it up,open the hood (kill the hood light)
spray the plug wires with windex(not water) and look for sparks ,if any ,put a set of wires on it. I suppect this is the only problem,bad wires will kill coil packs

Jan 27, 2012 | Oldsmobile Cutlass Supreme Cars & Trucks

1 Answer

Missing under load, number three cy,inder was


Next step is the camshaft position sensor.

Mar 21, 2010 | 1999 Suzuki Vitara

1 Answer

Have a 1999 Toyota Tacoma with a 3.4. Vehiclw was brought in 4 pinging under acceleration. Check engine light was on with a TPS code. Upon diag we found the plugs very worn. 140K on vehicle so we did a...


Most likely I a would suspect the fuel rail had moisture in it. If you checked emissions it would most likely show no HC and alot of 02 and no CO. If it does show alot of HC then I would suspect sticking valves intermittantly . The pinging really points to no fuel issue tho. If you pull the injector connector off and no change then I would remove the fuel rail and inspect. Also make sure the wires are in the correct locations. It easy to get them wrong.

Sep 03, 2009 | Toyota Tacoma Cars & Trucks

2 Answers

Miss fire on cylinder 1 and 2 coils replaced


Get a scanner on it. You save time AND MONEY.

Jun 21, 2009 | 1996 Audi A4

1 Answer

2000 VW Passat misfire


Gasket need replacing and New Spark Plugs (NGK Orginal). May need Coils! If any, replace all at once, My 2000 Passat Wagon runs Great, 1,8T Wagon!

May 15, 2009 | 2000 Volkswagen Passat 4Motion

1 Answer

1994 s10 misfire on number 2 cylinder


You have coved all angles i would have looked at maybe it has droped a valve?

Feb 14, 2009 | 1994 Chevrolet S-10 Blazer

Not finding what you are looking for?
2002 Volkswagen Passat Logo

180 people viewed this question

Ask a Question

Usually answered in minutes!

Top Volkswagen Experts

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

yadayada
yadayada

Level 3 Expert

60960 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Volkswagen Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...