01 ws6 ls1 help
Hey guys I have an 01 ws6 I've been having pinging issues with. The car has 90k on it now. Stock engine with larger throttle body with true cold air with removed baffles a cat back exhaust and a predator tuner. The car has a new trans with a 2400-2600 stall anti balloon locking converter with a minor shift inprovemt kit with heavy duty clutches and bands. I recently did a tune up with Delco plugs and wires. I notice under heavy load or wide open throttle it seems like its only in closed loop. I've tried to reduce the spark advance and add fuel to the mixture but it doesn't seem to go away. Does anyone else seem to have this problem or know of a fix? I've performed a few fuel injection services and ran a top end decarbon services from BG products.
Any help would be appreciated!
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