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LS1 pinging bad Posted By: 3BLACKSS On: 01-04-2008 @ 01:35:51 Reply | Edit I cant get rid of it. it does it really bad in 2nd and 3rd gear only when the throttle is wide open. Starts about 3000 rpm and gets worse as the rpm's get higher. At 6000 rpm's it's almost ear peircing! Car pulls no codes. Did the sea foam today and still does it. Changed fuel filter and serviced k&n. When I run 100 or 101 octane it goes away. But with 91 octane, forget it. Still should not do it. Can someone help please??? Posted By: BlackScreaminMachine On: 09-11-2006 @ 07:32:21 Reply | Top | Edit Any aftermarket tune?? Anything disabled?? All sensors has to be working and if you have a ping, ODB2 PCM's pick up almost ANYTHING so you should have a SES light. let us know. if it does, get it retuned. -- '94 Black Z28, 383 LT1 Breaking 11's SOON! 
"Miles Per Hour is not a distance that you can race"-Ronald Bastura Posted By: 3BLACKSS On: 09-11-2006 @ 21:46:02 Reply | Top | Edit No mods whatsoever. Untouched... Posted By: BlackScreaminMachine On: 09-11-2006 @ 21:51:14 Reply | Top | Edit That doesnt make sense, knock with no SES. Are you the orignal owner?? Check your fuel pressure, run it with the guage on the rail and put a load on it, I wonder if your just loosing flow and when you put a good octane in it, it makes up for the lack of tolerance -- '94 Black Z28, 383 LT1 Breaking 11's SOON!
"Miles Per Hour is not a distance that you can race"-Ronald Bastura Posted By: 3BLACKSS On: 09-12-2006 @ 19:15:08 Reply | Top | Edit I am not the original owner no but I can tell you that it started out as a Washington car and was then shipped to Alaska. After that the car was shipped to Arizona where I purchased it. I am currently still living in Arizona. Is it possible that the factory or the dealer could have advanced the timing for colder climate? When I bought the car it had 24k miles on it. It now has 27k and has had this problem since I bought it. Posted By: CATransam On: 09-13-2006 @ 02:43:28 Reply | Top | Edit Call the dealer to ask them to drop the latest pcm tune in. and see if the problem persists.it should be a minimal shop time fee. or take it for an oil change and ask them to do it and see if they will do it gratis. -- 04 Torrid Red GTO M6 "No way dude...i saw an LS1 fight godzilla and the LS1 beat godzilla and it looked in the air and was like what do you think of that god? And god was like bring it bitch, so they fought and the LS1 beat god and now the LS1 is god because its the greatest thing ever" what I once thought was, is now no more. Garage, Arcade, and more: http://www.mainstreamtopics.com/ Posted By: CATransam On: 09-13-2006 @ 02:50:51 Reply | Top | Edit I just read that you serviced the K&N, some times if to much oil is inadvertantly applied to the filter, it can transfer that oil onto the MAF. This can cause bad readings on the air coming into your engine. If that is the case it could throw off just about everything since the tune is looking for one air volume and receiving another. Go get some electical contact cleaner, take the MAF out of the car, and clean it out realy good. reinstall and see if the problem persists. Posted By: BlackScreaminMachine On: 09-13-2006 @ 15:05:08 Reply | Top | Edit 
We did that on RSM's car, it ran shitty for a few miles but cleared, but ive heard more extreme cases messing up the MAF which can determine the driveability -- '94 Black Z28, 383 LT1 Breaking 11's SOON!
"Miles Per Hour is not a distance that you can race"-Ronald Bastura Posted By: BlackScreaminMachine On: 09-15-2006 @ 07:46:42 Reply | Top | Edit this is one of the situation that Arm Chair diagnosing doesn't help, Go to a dealer, get a tech 2 and record/scan the car, it may not be detonation/ping.... -- '94 Black Z28, 383 LT1 Breaking 11's SOON!
"Miles Per Hour is not a distance that you can race"-Ronald Bastura Posted By: CATransam On: 09-15-2006 @ 10:34:00 Reply | Top | Edit it also doesnt help if the guy never comes back. -- 04 Torrid Red GTO M6 "No way dude...i saw an LS1 fight godzilla and the LS1 beat godzilla and it looked in the air and was like what do you think of that god? And god was like bring it bitch, so they fought and the LS1 beat god and now the LS1 is god because its the greatest thing ever" what I once thought was, is now no more. Garage, Arcade, and more: http://www.mainstreamtopics.com/
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