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12425 - Established June, 2013 - all GRiSO, all the time...
 
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 GuzziDiag (I know, you've seen this a thousand times)

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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

GuzziDiag (I know, you've seen this a thousand times) Empty
PostSubject: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 8:08 pm

I bought my 2012 8v, rollerized GRiSO with low miles, and a Quad D exhaust with Power Commander. I recently removed the Power Commander, and replaced the Quad D with the factory Termignoni that came with the purchase. It's got a bung plug rather than the O2 sensor, and there was no baffle included. I had downloaded the GuzziDiag software and bought the cables from Lonetec, and I bought a map from Beetle for an 8-valve GRiSO with Termignoni today, and did the reflash. All went smoothly, and I followed up with the TPS and Autolearning reset

Then I took the girl for a ride. She accelerates hard at higher RPMs, but there's a bit of stuttering and stumbling at constant throttle lower-RPM riding. Any thoughts? 12K on the clock now. Might I need to resync the throttle bodies? Or is the missing O2 sensor or baffle possibly and issue?
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beetle
GRiSO Capo
GRiSO Capo
beetle


Posts : 9537
Join date : 2013-09-30

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 8:40 pm

Missing baffle will be the cause.




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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 9:00 pm

You think? I tried ordering a baffle a year ago, and after being on back-order for nine months I cancelled the order. Anybody got a Termignoni baffle for sale?
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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 9:02 pm

Since I can't seem to procure a baffle, are there any tweaks I could make to the mapping that would compensate?
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beetle
GRiSO Capo
GRiSO Capo
beetle


Posts : 9537
Join date : 2013-09-30

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 9:15 pm

You could try setting the CO trim to +5 or more. Maybe even +10.




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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Wed Jun 27, 2018 9:26 pm

Thanks, I'll give that a try tomorrow
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davem
Tiradritto
Tiradritto
davem


Posts : 309
Join date : 2013-12-17

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Thu Jun 28, 2018 6:36 am

Measure the hole and have a look on ebay there are hundreds of dbkillers/baffles on there.
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Ekimyrf
Grignapoco
Grignapoco
Ekimyrf


Posts : 166
Join date : 2015-06-06
Age : 62

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Thu Jun 28, 2018 4:28 pm

I can whip mine out and measure it if you want ...... oooerrr missus !
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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Thu Jun 28, 2018 5:10 pm

Thanks, but it shouldn't be a big deal to measure the pipe
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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Thu Jun 28, 2018 6:23 pm

Well, I raised the CO Trim from 0 to +10, and it may be running better now, but I can still get it to stumble. It's not bad, and I think it mostly happens when i'm going downhill with just a slight bit of throttle. Guess I'll keep playing around with it.
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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Thu Jun 28, 2018 7:24 pm

The ID of the angled Termi exhaust is 57 mm---I'm not finding a db killer for that ANYWHERE
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davem
Tiradritto
Tiradritto
davem


Posts : 309
Join date : 2013-12-17

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Fri Jun 29, 2018 9:30 am

oediehl wrote:
The ID of the  angled Termi exhaust is 57 mm---I'm not finding a db killer for that ANYWHERE

They are available in the UK.



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oediehl
Montanarolo
Montanarolo
oediehl


Posts : 12
Join date : 2017-02-05

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PostSubject: Re: GuzziDiag (I know, you've seen this a thousand times)   GuzziDiag (I know, you've seen this a thousand times) Icon_minitime1Fri Jun 29, 2018 4:31 pm

Thx, I just ordered one
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