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2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 11-05-2007, 11:05 PM   #11
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Haven't tried without the belt but I really don't think it'* false knock.

I do notice now with the temps cooling into the 40 F'* that there is no KR until the engine heat soaks up to 160 F ie. out of closed loop. Takes about 10 minutes of driving time before the part throttle KR is evident.
I'm sure it'* tuning.

Hoping PDad with mail me his HP Tuner so I can set things straight.
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Old 11-06-2007, 09:19 AM   #12
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I think that our knock sensors don't "turn on" until the 150'* but I'll have to check the code.
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Old 11-06-2007, 11:20 AM   #13
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Quote:
Originally Posted by 2000SilverBullet
Haven't tried without the belt but I really don't think it'* false knock.

I do notice now with the temps cooling into the 40 F'* that there is no KR until the engine heat soaks up to 160 F ie. out of closed loop. Takes about 10 minutes of driving time before the part throttle KR is evident.
I'm sure it'* tuning.

Hoping PDad with mail me his HP Tuner so I can set things straight.
Knock sensors don't turn on until coolant temp is 163* I believe in 2000 L67'*....

My guess is you need more fuel added in your AE. AE adds fuel when you first step on the gas, so it probably just isn't getting enough with the extra airflow that the Gen V gives. I would probably add fuel to that and see if it helps it any.

I am doubting it is false knock, false knock is more rare than people make it out to be.

Also, when this happens, how much timing advance do you actually have? It could be a point in your timing table where you have a lot more timing than you really should with the mods you have and that could be part of why its knocking.
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Old 11-06-2007, 02:35 PM   #14
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on a 2001 and 2003 stock files...

the engine must be running longer than3 seconds
the coolant must be above 158*
the RPM must be above 600
and the MAP has to be above 50 KPA..

for the Knock sensors to be active
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Old 11-06-2007, 05:48 PM   #15
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Quote:
Originally Posted by dbtk2
My guess is you need more fuel added in your AE. AE adds fuel when you first step on the gas, so it probably just isn't getting enough with the extra airflow that the Gen V gives. I would probably add fuel to that and see if it helps it any.
Could be but I think more likely the combination of -7 LTFT and a stock PE_vs_TPS% that is highly condusive to part throttle KR are the culprits.

Quote:
Originally Posted by dbtk2
I am doubting it is false knock, false knock is more rare than people make it out to be.
Yep, I agree with you there!

Cheers,
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Old 11-06-2007, 11:07 PM   #16
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Thanks for the input. I can hardly wait for the tuner to arrive.
Foghorn, I may be speaking with you for help with the tuning.

I have absolutely no clue how to use the HP tuner software.
I do have a spare PCM that I can experiment with while saving the INTENSE burned unit just in case I really mess it up.
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Old 11-06-2007, 11:17 PM   #17
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Quote:
Originally Posted by 2000SilverBullet
Thanks for the input. I can hardly wait for the tuner to arrive.
Foghorn, I may be speaking with you for help with the tuning.

I have absolutely no clue how to use the HP tuner software.
I do have a spare PCM that I can experiment with while saving the INTENSE burned unit just in case I really mess it up.
Did you buy the DHP PT or the HP Tuners? Boosty owns an HP Tuners, I think he'* hooked on it Either way, could be good now that you have the time

Cheers,
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Old 11-06-2007, 11:26 PM   #18
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I priced out the HP tuners at $500 + $150 for the wideband O2 input, so I shyed away from buying it. :(
Going to borrow O'Neils (PDads) for a month or two. Just waiting for him to mail it to me. I will pay whatever it costs for shipping and rental.
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Old 11-07-2007, 08:24 AM   #19
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I picked up the HP Tuner with MPVI at $650, need to add a wide band for about $200, although the MPVI version comes with input ports for a couple sensors and WBO2 can be included into the data stream. Other nice features are built in histograms, graphs etc and the abilty to take that info and paste by half, full etc etc.

Doesn't O'Neil have DHP?
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Old 11-07-2007, 02:10 PM   #20
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Quote:
Originally Posted by Foghorn
Could be but I think more likely the combination of -7 LTFT and a stock PE_vs_TPS% that is highly condusive to part throttle KR are the culprits.
He has a stock PE vs. TPS% table? I thought that would be changed in the Intense PCM. Hrmmm....thats dumb.... Did he post a scan of it, if so I must have missed it...I didn't know about the fuel trims or anything. Sounds like it needs a little bit of tuning work...

FWIW I have a powertuner only because its significantly cheaper than an HP tuners and it does pretty much everything I need it to do. (I paid $360 shipped for it with the wideband input over a year ago) Its awesome and I wouldn't ever try to put around resolving issues with these cars with mini-afc'* and all that BS ever again.... With a lot of work and a good base PCM you can make the mini-afc'* work pretty well, but nothing like some PCM programming. I like the HP tuners more but for the $ that it costs its not worth it to me. (its only like $100 more to get it but it costs x amount per car and I do LOTS of cars....)
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