Diesel sound on takeoff at WOT after installing tune

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Jul 17, 2006 | 01:04 PM
  #1  
Installed my 89 Octane Perf tune from Troyer this weekend and now get a diesel sound on WOT takeoff. Is this normal or will this clear up as the PCM "learns" its new programming?

Can't wait to drain this tank and fill back up with 93 Octane and load the 93 Perf tune...the 89 Octane Perf already kicks butt!!
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Jul 17, 2006 | 03:12 PM
  #2  
Quote: Installed my 89 Octane Perf tune from Troyer this weekend and now get a diesel sound on WOT takeoff. Is this normal or will this clear up as the PCM "learns" its new programming?

Can't wait to drain this tank and fill back up with 93 Octane and load the 93 Perf tune...the 89 Octane Perf already kicks butt!!
Call Mike and discuss this with him.
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Jul 17, 2006 | 03:15 PM
  #3  
Sounds like predetonation, you do not want that. The octane is probably not enough for the ignition timing. Get on the phone with Mike.
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Jul 17, 2006 | 03:21 PM
  #4  
Quote: will this clear up as the PCM "learns" its new programming?
Maybe. Call Mike. If he can't help you, then add some 93 octane to the tank. It will probably help. Or just quit going WOT!
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Jul 17, 2006 | 09:31 PM
  #5  
WHAT?!?! Quit going WOT?!? Hush your mouth!

I'll call Mike tomorrow. I need to schedule a slot for Dyno Day anyhow...
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