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No PE mode. Causes?

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Old 04-23-2013, 02:34 PM
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Originally Posted by silverado6.2
They counteract the meltdown threat by pulling more timing out
I guess that's why it runs hot, I threw an appropriate amount more of timing in on my modified tune thinking PE would supply the fuel. I have an EGT gauge for certain reasons and if I pull hard WOT for 10-20 seconds it hits 1500° easily.
Old 04-23-2013, 02:36 PM
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Originally Posted by silverado6.2
They counteract the meltdown threat by pulling more timing out

yep!

less fuel, less timing. no much power.

retune it without the delays and lean out the PE mode some. Ive never fooled with a 8.1 but you would prolly be happy around 12.5afr above 3000rpms.
Old 04-23-2013, 02:37 PM
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I run mine with the timer set to 0, a 160 t-stat and no tm, made a huge difference
Old 04-23-2013, 02:45 PM
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Originally Posted by nonnieselman
yep!

less fuel, less timing. no much power.

retune it without the delays and lean out the PE mode some. Ive never fooled with a 8.1 but you would prolly be happy around 12.5afr above 3000rpms.
12.5 sounds about right. I just dicked around one day adjusting stoic to random amounts and 12.7 ran like a champ, but seemed like I might as well hire a midget to sit under the hood and dump 5 gallon buckets of golden laced fuel down the Throttle Body hahahahaha. Normal cruising sure didn't need all that fuel.
Old 04-23-2013, 02:57 PM
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No PE changes or timing changes?
Old 04-23-2013, 02:58 PM
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Originally Posted by Ender06
12.5 sounds about right. I just dicked around one day adjusting stoic to random amounts and 12.7 ran like a champ, but seemed like I might as well hire a midget to sit under the hood and dump 5 gallon buckets of golden laced fuel down the Throttle Body hahahahaha. Normal cruising sure didn't need all that fuel.
yea thats a wee bit rich for cruising..
Old 04-23-2013, 02:59 PM
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Originally Posted by Ender06
12.5 sounds about right. I just dicked around one day adjusting stoic to random amounts and 12.7 ran like a champ, but seemed like I might as well hire a midget to sit under the hood and dump 5 gallon buckets of golden laced fuel down the Throttle Body hahahahaha. Normal cruising sure didn't need all that fuel.
Wouldn't you just need that afr in pe?
Old 04-23-2013, 03:01 PM
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Originally Posted by nonnieselman
No PE changes or timing changes?
Timing, yes. PE, no
Old 04-23-2013, 03:02 PM
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Originally Posted by silverado6.2
Wouldn't you just need that afr in pe?
Yes!!!! Like I said, just messing around. I was trying to find optimal AFR but PE wouldn't engage. Just a shitty way of testing I guess
Old 04-25-2013, 04:02 PM
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ok guys, good/bad news....delay on PE mode is only 1 second. Sooooo what else should I check??


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