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I was told by the dealership i needed to replace the ignition coil and spark plug wires because my 99 jetta vr6 was misfiring. I did that and now it wont start.
Re: I was told by the dealership i needed to replace the...
You must verify your work.
1. Test for spark. Make sure the coil is producing spark. 2. Did you remove the plug wires one at a time? If not then check to make sure the firing order is correct.
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Here is the firing order below, but you made a grave mistake. You are subscribing to the "let's try replacing this" method of car repair which doesn't work and costs $160. What if it is two $10 spark plugs causing the misfire?
So what you do is remove the plugs from cylinders 2 and 3 and check them for condition and gap. Clean with a wire brush, gap and replace. Is the misfire still there? If it isn't, you have fixed it for free. If the misfire is still there, you take the coil from 2 and swap it with cylinder 1. Does the misfire move to 1? If it does, the coil needs changing. Swap coils 3 and 4 and do the same test.
P1300 indicates: Misfire detected & fuel level too low.
Try changing the fuel filter and / or the fuel pressure regulator...
As for the misfire: Change all of the spark plugs, plug wires and have the coil (s) checked out and if it / they are bad, then you should replce it / them...
The ECM has detected random multiple cylinder misfiring (code p0300). Possible causes are spark plugs,high tension leads injectors ignition coils wiring and low compression As it is random suspect coils and wiring
This is common, the car is misfiring in that cylinder, this is caused by a bad sparkplug or a coil and last a control module will also cause this, a good test is to first swap the coil with another cylinder and run the car a few miles then have it scanned to see if the misfire moves to another cylinder that you switch coils with, if this happens then you will know its the coil, but if it doesnt move then it may be a sparkplug or the module, heres a diagram to show you where # 2 cylinder is, hope this helps, good luck let me know how it goes.
Had the same problem, car was misfiring on cylinder 3 and 4. replaced wires, plugs, and ignition coil. still misfired on the same cynlinders. turned out the main engine wiring harness plug in was coming loose. spent well over $150 on the unneccesary repairs and ultimately fixed the problem wit a $3 bag of wire ties to hold the plug in...
HI!!!!!!! to star .. from the coil pack w/ the engine runiig take off the wire and if you have spark than every wire is sparking the wires and plugs are Ok. the problem is in the ignition control module
Check the distributor cap if it was not included in coil pack.
Also check the fuel filter replace), injectors (cleaner) and fuel pump.
Please let me know if you need more info
Good Luck
You may have a bad coil pack - try moving two of them around and see if the misfire follows the coil pack or stays at the same cylinder. If it follows the coil pack, get a new one. If it stays in the same cylinder, inspect your spark plug wires and make sure the plug is gapped correctly.
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