So I’ve been with the five hundred dollar Monte Carlo this week and I’ve made progress with troubleshooting it I’ve replaced an egr valve and a thermostat and I’ve unplugged the bank one o2 sensor and the throttle position sensor and the misfire has stopped for now and it’s driving better so what’s the two cents boys?


It’s been at my buds house for a week it finally came home today

 

i need some imput here please!

 

What codes is it pulling when you have everything plugged in? Is it one cylinder misfiring or multiple?

 

It’s multiple


Heres the codes it’s pulling

 

What year is the car and which engine? I will see if I can pull the shop data for this codes later.

 

2002 Monte Carlo with the 3.8

 

Here is all the shop book data for your codes. I hope this helps figure things out.