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yes. wherebh first put the camera in the bid there is a huge sucking hissing sound. maybe its pressure coming out? maybe its air sucked in. check alllll those vac hoses that are right there. u might have a crack or tear in the rubber boot. also the throttle body gasket/and hinge loints. and check the exhaust gasket you fixed.
Originally Posted by 9T3VETTE
From your video there is clearly a leak somewhere. It sounds like a manifold gasket to me. Have you checked all around the exhaust manifold gasket with a rubber hose to your ear?
Do you still have the AIR system and is it working properly? It's possible the diverter valve is not working properly introducing fresh air into the system.
Well took my car to a corvette specialists shop. If they can't find anything wrong, I don't pay anything. Dropped it off last Saturday. Called today, owner couldn't find anything wrong. Told me to give him one more day to see. Let's hope they find the issue.
Well they couldn't find the culprit. I'll figure it out one day. I searched for people that had almost same problems as me, with no updated results. I'll see if there's anything in the FSM that mentions what will cause the IAC to be at zero with a warmed up engine. I'm hoping that by fixing that, it will make the car less lean.
Here are some screenshots of datalogs I recorded. I'll get some screen shots today, where you can view everything. This one is part throttle, with AC off
Watch a few more of my videos I cover it. Its not a direct comparison 10in Hg on the scan tool=20 in Hg in the intake if Barometric pressures 30 in hg.
Watch a few more of my videos I cover it. Its not a direct comparison 10in Hg on the scan tool=20 in Hg in the intake if Barometric pressures 30 in hg.
. Told me to give him one more day to see. Let's hope they find the issue.
