1500 miles on BR7EF plugs, rough idle almost stalled

[sbelyo]

Originally Posted by tartagliazl1

Depending on your pulley combination you should be seeing negative pressure at idle. I have an aggressive pulley setup 2.5/9.55 and idle pressure is -10psi.

That's what I thought, but wasn't sure. I run a 2.5" upper and stock lower.

It's got to be the sensor fingers crossed

[sbelyo]

looks like it was the sensor... I replaced it with a new AC Delco part and the coded didn't come back. Car now idles and sounds like before. Throttle response is back to normal. I did some part throttle rips with no issues. This is what the readings were when I pulled back in to the driveway. Car is in park and idle is what you see there. Not sure why the supercharger inlet pressure would show that 5.5 psi unless that's not the reading I should be looking at.

[sbelyo]

Originally Posted by Dega Man

The way ethanol contracts water, have you just tried some fresh fuel first?

That was next, but it seems back to normal after a new pressure sensor

[Little Walter]

Thanks for sharing the fix, this is one to remember just in case.

[tartagliazl1]

glad you got it fixed.

[sbelyo]

Originally Posted by Little Walter

Thanks for sharing the fix, this is one to remember just in case.

indeed...

[sbelyo]

Originally Posted by tartagliazl1

glad you got it fixed.

Thanks! couldn't sleep last night. The next step is to do the blower spacers and a DSX aux pump. I might hold off and upgrade the brick and port the blower at the same time. I also want to build a new DAC for my audio stack too so something will have to give in the next year lol