SES Light+High Idle Code=Problem Help
SES Light+High Idle Code=Problem Help hey guys. I was driving my car aout 5 days ago and my SES Light came on. I had a buddy of mine check it out with his scanner and said it was a code P0507(High Idle). I am new to the LSX world, and am just askinf for some help/advice on where to begin on checking things out? I was told at a local shop by me that is code was created by a Vacuum Leak. I would rather be able to fix this problem myself, rather going to take it to a shop and pay whatever they would charge. So again any help or advice would be great.? I have been trying to look up this problem off of older thread but, I dont seem to find what I need to know.
Sounds like you have air bypassing the MAF somewhere aka vacuum leak. You can spray carb cleaner, brake cleaner, propane or something else around the engine while listening for an idle change with the engine running. When you hit your leak, you'll know it. In rare instances, I have seen the diaphragm in the brake booster leak, causing this problem. You can also try plugging or pinshing off all of your vacuum lines, one at a time to see if the problem disappears. There is one on the back of the intake that goes to the ventilation system to change levels from dash to vents to floor. If that's not working then there's your vacuum leak. Loose intake or throttle body bolts will also cause the issue.
Sounds like you have air bypassing the MAF somewhere aka vacuum leak. You can spray carb cleaner, brake cleaner, propane or something else around the engine while listening for an idle change with the engine running. When you hit your leak, you'll know it. In rare instances, I have seen the diaphragm in the brake booster leak, causing this problem. You can also try plugging or pinshing off all of your vacuum lines, one at a time to see if the problem disappears. There is one on the back of the intake that goes to the ventilation system to change levels from dash to vents to floor. If that's not working then there's your vacuum leak. Loose intake or throttle body bolts will also cause the issue.
