1 Red primary at idle
Thread Starter
Instructor
Joined: May 2013
Posts: 107
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From: Baltimore MD
1 Red primary at idle
Started the car for the first time in a few weeks, last night. When I walk over to the engine bay, I notice 1 header tube is red hot at idle....I've seen a similar issue on other ls cars before after a battery is disconnected, or voltage is low ect, but never isolated to one hole. Usually a whole bank or both banks....but this time it's only at one cylinder? And everytime I've seen it happen in the past, it either works itself out after a bit or an ignition cycle would take care of it. This doesn't seem to be going away. Fuel needs to be getting past the valve and burning in the pipe for some reason...and it must be burning good because I don't see a change in afr on the wideband. Has anyone seen this before?
