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I am getting the following misfire codes on my 06 tib. P0302, P0304, P0306, P0300. The first three are misfire codes for cylinders 2, 4 and 6; the last code is multiple cylinders misfiring.
I did have the dealer run a diagnostic test on the car when I first had this problem about a month or so ago - they also came up with a couple of 02 sensor codes; but that issue has been resolved. Now I am just getting the 4 misfire codes. I called the dealer again and they said there would be a charge for the labor to run a diagnostic test again if they find that the problem is not something that can be covered under warranty.
I have been searching for some info on NT and found a similar situation where a member had these same codes. A suggestion was made to replace the crankshaft position sensor. Unfortunately, there was never any update on the topic to confirm whether that solved the problem. I have considered buying a new sensor and replacing it myself, however there is a specific code that would come up if the CKP sensor were actually bad...so I don't want to throw money at something that may not be the problem. Would there be two of these sensors on the motor? One on the front and one on the back? If the sensor on the front was bad, I guess that would be a logical cause of my problem.
Another possibility that I am wondering about is my AFC NEO - I did the install on this and had the first misfire codes come up soon after installing it. Is it possible that there is something related to the install that would be causing only 3 cylinders to misfire?
Would an exhaust leak cause only three cylinders to misfire?
I have read a few threads that mention the coil packs and how they could be bad, but cylinders 2,4 and 6 spark plug wires go to three different coils. So I have ruled out that possibility.
What about injectors?? Again, it seems odd that the injectors would all be causing a problem on one side of the motor.
Fuel pump? I am guessing this is not likely to affect only three cylinders. Fuel filter - also doubtful.
Vacuum leak? If this is a likely cause, where would I check for this?
Gas cap - suggested in previous threads - but again, would this cause a misfire in only three cylinders?
MAF sensor - I removed it yesterday and did clean it with MAF sensor cleaner - I did not touch the inside with anything. I swear, that thing looked brand new when I removed it - when I cleaned it, there was absolutely no dirt that came off of it.
My CAI filter seems to be fine. I had it installed 7-8 months ago and it does not seem to be dirty - only about 6K miles since the install.
So, I am in a bind here...does anyone else have any similar situations that they have encountered and successfully resolved the problem? If so, what worked for you? A crankshaft position sensor runs about $50 at the dealer; is this worth a try?
Any possible solutions would be appreciated.
I did have the dealer run a diagnostic test on the car when I first had this problem about a month or so ago - they also came up with a couple of 02 sensor codes; but that issue has been resolved. Now I am just getting the 4 misfire codes. I called the dealer again and they said there would be a charge for the labor to run a diagnostic test again if they find that the problem is not something that can be covered under warranty.
I have been searching for some info on NT and found a similar situation where a member had these same codes. A suggestion was made to replace the crankshaft position sensor. Unfortunately, there was never any update on the topic to confirm whether that solved the problem. I have considered buying a new sensor and replacing it myself, however there is a specific code that would come up if the CKP sensor were actually bad...so I don't want to throw money at something that may not be the problem. Would there be two of these sensors on the motor? One on the front and one on the back? If the sensor on the front was bad, I guess that would be a logical cause of my problem.
Another possibility that I am wondering about is my AFC NEO - I did the install on this and had the first misfire codes come up soon after installing it. Is it possible that there is something related to the install that would be causing only 3 cylinders to misfire?
Would an exhaust leak cause only three cylinders to misfire?
I have read a few threads that mention the coil packs and how they could be bad, but cylinders 2,4 and 6 spark plug wires go to three different coils. So I have ruled out that possibility.
What about injectors?? Again, it seems odd that the injectors would all be causing a problem on one side of the motor.
Fuel pump? I am guessing this is not likely to affect only three cylinders. Fuel filter - also doubtful.
Vacuum leak? If this is a likely cause, where would I check for this?
Gas cap - suggested in previous threads - but again, would this cause a misfire in only three cylinders?
MAF sensor - I removed it yesterday and did clean it with MAF sensor cleaner - I did not touch the inside with anything. I swear, that thing looked brand new when I removed it - when I cleaned it, there was absolutely no dirt that came off of it.
My CAI filter seems to be fine. I had it installed 7-8 months ago and it does not seem to be dirty - only about 6K miles since the install.
So, I am in a bind here...does anyone else have any similar situations that they have encountered and successfully resolved the problem? If so, what worked for you? A crankshaft position sensor runs about $50 at the dealer; is this worth a try?
Any possible solutions would be appreciated.
