Hi.
Car is 427 LS3 cammed, completely built.
Everything was fine for 2 years but car now behaves weird.
After driving about 10-15min it starts to backfire and bucking. Especially at idle.
No CELs and all ECU parameters seem to be ok.
Again, it was tuned right and was driven w/o problems for 2 years.
Any thoughts?
New plugs? Vacuum leak? Hard to fix over the internet, any logs? What do the fuel trims look like? Tune?
Need more input. lol.
'12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel
New plugs, no vacuum leak, trims near zero.Originally Posted by Iam Broke
Post up the tune and a log so the experts can help.
'12 Camaro T3 2SS/RS LS3 M6, SLP TVS 2300, Flex Fuel
Sounds like it's losing fuel somewhere. I would be checking fuel pressure under load when it starts to act up.
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