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M_Shumansky 09-02-2008, 01:27 AM had efi live 12 sec tune on, kinda free reved it for 5 minutes at 4500 + rpm, made some bad sounds and now i got engine missfire cyl 1 code and bad limp mode. hopefully warrenty will cover, could it have a bent rod now :confuzeld RI Chevy Silveradoman 09-02-2008, 08:32 AM Moved to EFI Live! Good luck. 4500RPM's with a stock LMM is a little bit high in my book! THe word is that with LMM's, the dealer can see when you reflash the ECM with a tuner. Please keep us posted on your results! stacks04 09-02-2008, 09:22 AM yeah your beat. why is my question? i have done some stupid things but never that bad. i hope you have some pennies saved for a rebuild. look at the bright side, you can build your engine now. camcojb 09-02-2008, 10:24 AM must be a joke. Jody jtaylor11 09-02-2008, 11:41 AM must be a joke. Jody I hope so too. If not kinda like to at the dealership when they scan the truck. :nutkick: DURAtotheMAX 09-02-2008, 11:46 AM yikes, why would you do that?? My rev limiter is set at 4000rpm because I have no need to rev it higher, and thats with a built engine too! ben JC1843 09-02-2008, 12:00 PM WTF reved it in neutral for 5 minutes to 4500 on a brand new truck! :eek: Now you are asking about warranty! You don't deserve any warranty!:mad: M_Shumansky 09-02-2008, 01:29 PM it was my bros truck he must have been showing off, forgot to put a rev limiter on, oh well time for some aftermarket rods i guess. marc23760 09-03-2008, 11:41 AM If it lasted for a solid 5 minutes free reving a stock LMM at 4500RPMs my hat goes off to GM for that stock engine. What a waste. Hopefully your joking. | ||