Brain trust,
I have installed a turbo and I am very happy with the results. Only running 5-6 pounds boost. Everything is stock. So the question I have is about the A/F ratio. In the attached link I have a short video of me driving on the highway showing my A/F gauge. It seems I am running lean at idle but its ok at speed and WOT??? I am also including a picture of the spark plug from #2 cylinder. It looks good to me. I pulled cylinder #1 and it was not quite as good(looked lean) but did not take a picture before I put it back in. I have about 15k miles on a complete top end rebuild that included a full injector cleaning. I have the feeling I am running lean on some cylinders but not others. May need to replace some injectors. No codes. I also pulled the plug on the o2 sensor and it did not make any noticeable difference. I tought it was odd that I did not get any codes when I unhooked the sensor. Should it throw a code?
The A/F gauge is all over the place, is that the way it is suppose to be? Would clogged/bad injectors cause it to very like that? Truck starts and runs great.
One last question, my turb is about 750 degrees. I have read that between 700 and 1000 is typical. Is that correct?
Thanks in advance
I have installed a turbo and I am very happy with the results. Only running 5-6 pounds boost. Everything is stock. So the question I have is about the A/F ratio. In the attached link I have a short video of me driving on the highway showing my A/F gauge. It seems I am running lean at idle but its ok at speed and WOT??? I am also including a picture of the spark plug from #2 cylinder. It looks good to me. I pulled cylinder #1 and it was not quite as good(looked lean) but did not take a picture before I put it back in. I have about 15k miles on a complete top end rebuild that included a full injector cleaning. I have the feeling I am running lean on some cylinders but not others. May need to replace some injectors. No codes. I also pulled the plug on the o2 sensor and it did not make any noticeable difference. I tought it was odd that I did not get any codes when I unhooked the sensor. Should it throw a code?
The A/F gauge is all over the place, is that the way it is suppose to be? Would clogged/bad injectors cause it to very like that? Truck starts and runs great.
One last question, my turb is about 750 degrees. I have read that between 700 and 1000 is typical. Is that correct?
Thanks in advance