swegs430

Hi all! really need xperts in here.

Ive had some issues with the car before by randomly starts missfire and have started more and more!

I get p0300 / multiple random missfire

p0302/p0304- Cyl 1 and 2.

We have checked for bad coils by switching places, No luck
We have changed the sparkplugs, No luck

We are now in the process of trying to switch the injectors to see if those are bad.

Here are the funny part that im having hard time to grasp. It says missfire on 2-4 the cylinders on left side facing engine towards the front of the car, But the 2 closest firewall 6-8 is black. I first thought 2-4 were the closest to the wall due to the black sparks but no.

Whats ur aim on this?

also hade some readings on oxygensensors

1bank1- 0-5%
2bank1- 99% after cat
3bank2- 10-35% and it goes up and down
4bank2- 99% after cat

So that tells me that a sensor might be faulty aswell..

I need this fixed asap.

/S