Question about Cars & Trucks

1 Answer

07 Volkswagen passat. Diagnostic codes 301 ? 302 ? 303 replace the coil pack spark plugs the light still comes back on what could it be

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 256 Answers

It has to be cleared with a scranner after the work has been done on the car,

Posted on Dec 06, 2012

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 94 Answers

SOURCE: Check engine light flashes sometimes and runs rough

A flashing check engine light is a critical indicator. That usually means that something went wrong that will damage the emission control system... and that is usually an ignition issue. First off, the OEM plug your car calls for is an NGK irridium... NOT BOSCH and not anything with more than 1 prong. Those NGKs are like 2 bucks and they are the proper plug. Make sure you have these plugs and make sure they are gapped to .028. Next, my suggestion is put all the new stuff on again. Drive it to autozone and have them delete all the codes. Drive it around until the check engine light comes on again, then immediately go back and read the codes. The ECU is smart enough to know which cylinder is misfiring. On these cars, I think they have three banks of two... meaning one "coil" inside the coil pack operates two of the cylinders. So if you get multiple misfires, it's the coil. If you get one misfire it's probably an individual plug wire or plug. Good luck.

Posted on Jul 15, 2009

  • 6 Answers

SOURCE: 2001 tiburon has no spark. replaced coil pack and

You have crank sensor problem . No signal to computer if no signal to computer no ejector pause

Posted on Jul 14, 2009

garputo22
  • 127 Answers

SOURCE: random misfire code changed plugs,coil pack,wires

Random engine misfire is very hard to diagnose as there are alot of things that can cause this. I would check the PCV system first replace the pcv valve and inspect all lines going to the pcv valve for leaks. The other thing to do is replace the gas cap as this can also cause the code. Most likely cause is a fault in the emissions system.

Posted on Aug 08, 2009

  • 110 Answers

SOURCE: i have a 99 grand am SE 2.4 4 cylinder and my

A misfire doesn't always have to be ignition... it's just the most common cause. Faulty or plugged injector, low compression. You need to check fuel pressure and test the fuel injector flow. Then check compression. If you don't have tools for these tests, take it to someone who does. Testing is much cheaper than throwing parts at the problem.

Posted on Feb 25, 2010

  • 6 Answers

SOURCE: 1997 CAMARO TURNS OVER BUTVWONT

the icm, coil, and crank sensor all read off the opti. Chances are you have a bad optispark (distributor). I just went thru the same issue and found it to be the problem.

check your fuel pressure as well, you may have anissue with your fuel pump and or relay

Posted on Oct 19, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

How to fix diagnostic code for 1999 vw passat po304 po305 po306


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.

May 18, 2014 | 1999 Volkswagen Passat

1 Answer

How u fix code po303 passat 2001


i still have same code po303 i have change spark plugs and coil i add a ground wire i can resat end drive for 20+ milages no check enigine light
turn off start up runs for minute or so then coms back on check enigine light same po303 enigine runs very smoth no vibration what so ever I AM LOST

Feb 16, 2013 | 2001 Volkswagen Passat

1 Answer

We have a 03 Passat GLX 4Motion, we have replaced spark plugs with NGK V Power Resistor, replaced spark plug wires with BWD Wire Set, and replace the coil with an after market don't remember the brand. We...


p0301 p0302 p0304 p0306 these are all misfire codes im gonna put his in simple words for you is the vehicle running good if it is have the codes removed there stored in the computers memory a parts store has a ob2 scan gun they can erase codes have you tried to have them erased now if the light comes right back see what codes its reading now i looked up all the codes there all refering to the work that was done on your car im not saying the work was done wrong but unless you reset the codes now if they come back the p0351 and p0352 has to do with the ignition coil but i promise you this if your car isnt missing with all theses codes then all that has to be done is erase codes get back with me tell me how it turns out some parts are not compatable with foreign cars

Dec 11, 2010 | 2003 Volkswagen Passat

1 Answer

I have a p0303 trouble code on my 1999 Passat. Missfire on #3 cylinder. Coil is ok, I'm lost.


coil packs very prone to failing... check compression for good readings (at least 100 - 120psi) if okay try new spark plug as these can fail under load and its the cheapest part to replace to eliminate. if misfire still present swap cylinder 3 coil with cylinder 1 coil and see if fault code moves to cylinder 1. hope this advice helps

Jul 17, 2010 | 1999 Volkswagen Passat

2 Answers

Oil got to spark plug because a hose got burned and broke 2002 passat


Change all your Spark Plugs and check the condition of your coil wires or packs and clean them if they are soaked with oil.

Jun 18, 2010 | 2002 Volkswagen Passat

2 Answers

I have a 1999 VW Passat 1.8l turbo. It has codes P0300 and others


They may not be firing. I would check spark from coils. You may have a bad coil pack. Do check for any vacuum lines. You can go to autzone.com and register for full free online repair manual

Sep 23, 2009 | 1999 Volkswagen Passat

1 Answer

Check engine light flashes sometimes and runs rough


A flashing check engine light is a critical indicator. That usually means that something went wrong that will damage the emission control system... and that is usually an ignition issue. First off, the OEM plug your car calls for is an NGK irridium... NOT BOSCH and not anything with more than 1 prong. Those NGKs are like 2 bucks and they are the proper plug. Make sure you have these plugs and make sure they are gapped to .028. Next, my suggestion is put all the new stuff on again. Drive it to autozone and have them delete all the codes. Drive it around until the check engine light comes on again, then immediately go back and read the codes. The ECU is smart enough to know which cylinder is misfiring. On these cars, I think they have three banks of two... meaning one "coil" inside the coil pack operates two of the cylinders. So if you get multiple misfires, it's the coil. If you get one misfire it's probably an individual plug wire or plug. Good luck.

Jul 15, 2009 | 2001 Volkswagen Passat

3 Answers

99 vw passat sw 1.8t #3 cyl not firing. Compression good & even,replaced plugs #3 wet, fuel fouled. Replaced coil pack,still misses,all connections look good. Any suggestions?


ihad the same problem.. its not the coils or anything like that.. and any reg mechanic wont know the prob unless they under vw.. u need to replace ur power output stage.. thats what cylinder 3 misfire is.. after i fixed it my car is good as new. i

Jun 26, 2009 | 1999 Volkswagen Passat

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

66 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

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

Answer questions

Manuals & User Guides

Loading...