420A 2gNT P0300 misfire code help

[bboyroxas]

Okay I have a 98 eclipse non turbo and I am getting the random misfire code. I have already replaced the plugs ngk, wires, and coil. I am still getting this code every like 1 hour the light might start flashing but that is it. I don't know what else to check because the car runs so good. I'm to the point that I want to take it to a mechanic for a diagnostic because I can fix anything once I know what it is but this is hard the car has 180k miles on it I that helps. But I know the timing belt has been replaced.

 

[boostinRWD]

Crank sensor be my first guess

 

[Josh97eclipse]

Mine does the same thing, and the only thing I have not checked is the crank sensor. Unplug yours and see if there is oil in there. I know when they get wet they act funny.

 

[boostinRWD]

I had the same deal,,,changed it and bam. All was swell.

 

[bboyroxas]

I ordered it!!! That would make send because I had an oil leak from the valve cover a while ago

 

[Josh97eclipse]

I had oil in mine from a defective vc that had a chunk missing out of it when i built my motor, oil got in there and I never cleaned it out. I Just blew my hg and now I am going to clean everything. But the oil in that sensor was the misfire cause on my buddies car.

 

[bboyroxas]

How Easy is this to change

 

[Petro99]

Crank sensors an easy quick job. It's on the back side of the motor and you need to do it from under the car.

 

[Josh97eclipse]

Its one 10mm bolt

 

[bboyroxas]

O I see can you get to where it plugs in from under the car

 

[bboyroxas]

I hit this in the mail I think it's the wrong part

 

[Colt4G63 also]

That's the one for a turbo car. Don't forget to check for vacuum leaks; those always cause random missfires too, but they would be accompanied by high LTFTs.

 

[bboyroxas]

Where would the vaccine leaks be coming from honestly I have never checked for those

 

[bboyroxas]

Okay I got the part in the mail today and I know where it goes the old one does look wet from oil or water do I hope this works

 

[bboyroxas]

Fixed it was the crank sensor!! Thankyou guys

 

[Colt4G63 also]

Awesome! It's good to hear your vaccine wasn't leaking.

 

[bboyroxas]

Hahaha that's funny