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I was planning on taking my Corvette out today for a drive and left it idling for about 10 minutes, when i came to drive it i noticed the headers were glowing red. I just recently installed Speed engineering headers and a Borla s type axle back. I have not had anything tuned yet. It was also running slightly rough almost going up and down in rpms and wanting to stall out. Any ideas?? Would a tune get rid of this problem?
Headers should not be glowing like that on an otherwise stock car at idle? Normally at idle the computer should be able to adjust fuel trims for the minimal requirements idle rpm require. What are your short term and long term fuel trims? The going up and down at idle indicate a vacuum leak with the Tps trying to stabilize air coming in.
Headers should not be glowing like that on an otherwise stock car at idle? Normally at idle the computer should be able to adjust fuel trims for the minimal requirements idle rpm require. What are your short term and long term fuel trims? The going up and down at idle indicate a vacuum leak with the Tps trying to stabilize air coming in.
brake booster line was disconnected, looked like this after about 3 minutes of idling....
you can use a can of brake cleaner to spray around your intake manifold etc to listen for an increase in engine speed
you probably knocked a vac line loose somewhere, just have to start chasing hoses in the engine bay
(notice the brake vac line in the lower right corner of the pic?
So in that case the vacuum leak would have given you a high idle speed - the throttle plate would have been as closed as possible and still too much air > high idle. The only way the ECU had to try and drop the idle speed back to target was to reduce the torque, it tried to do that by retarding the spark as much as possible > extremely high exhaust gas temps. No cooling airflow as car isn't moving > cherry pipes
HELP! LS2 C6 Glowing Headers
