Has anyone modified their P3 to read a/f?

M33too · 02-16-2015, 07:41 PM

Quote:

Originally Posted by regular guy

AFR can be derived from Lambda. For gasoline, AFR = Lambda * 14.7.

Here's a table that will help you convert Lambda for various fuel types.

Lambda	0.68	0.80	0.90	1.00	1.10	1.20	1.30	1.36
Gasoline	10.00	11.76	13.23	14.70	16.17	17.64	19.11	19.99
Diesel	9.93	11.68	13.14	14.60	16.06	17.52	18.98	19.86
Methanol	4.35	5.12	5.76	6.40	7.04	7.68	8.32	8.70
Ethanol	6.12	7.20	8.10	9.00	9.90	10.80	11.70	12.24
E85	6.60	7.76	8.73	9.70	10.67	11.64	12.61	13.19
LPG	10.54	12.40	13.95	15.50	17.05	18.60	20.15	21.08
CNG	11.70	13.76	15.48	17.20	18.92	20.64	22.36	23.39

Thanks, it's just that my mind has been programmed over the years for air/fuel ratio. It would just be much easier for me to recognize those numbers while glancing over at 8k rpms

I sent a message over to p3 and they set me up for the upgrade.

Patrón · 02-16-2015, 07:43 PM

Awesome info

whats77inaname · 02-19-2015, 02:15 PM

Ordered today. Price is $40 + $10 shipping. Looking @ the invoice, they're also tossing in a free t-shirt.

Patrón · 02-19-2015, 02:44 PM

Quote:

Originally Posted by whats77inaname

Ordered today. Price is $40 + $10 shipping. Looking @ the invoice, they're also tossing in a free t-shirt.

awesome, do you have a link to how you bought it or did you purchase by phone?

whats77inaname · 02-19-2015, 03:02 PM

Quote:

Originally Posted by Patrón

awesome, do you have a link to how you bought it or did you purchase by phone?

Tim told me to send payment via Paypal to sales@p3cars.com. In the payment "notes" section, I included "As per Tim, this is the upgrade chip for the P3 gauge for my 2008 BMW M3, 4.0L V8 so that I can read AFR. "

Patrón · 02-19-2015, 03:03 PM

Quote:

Originally Posted by whats77inaname

Tim told me to send payment via Paypal to sales@p3cars.com. In the payment "notes" section, I included "As per Tim, this is the upgrade chip for the P3 gauge for my 2008 BMW M3, 4.0L V8 so that I can read AFR. "

whats77inaname · 02-19-2015, 03:05 PM

Quote:

Originally Posted by Patrón

You're welcome

BobS · 02-19-2015, 05:00 PM

That's not a bad price. I'm glad they are upgradeable.

Patrón · 02-25-2015, 07:46 PM

Finally ordered, let's see how it goes...

whats77inaname · 02-25-2015, 08:57 PM

*lol* My chip will be here tomorrow.

whats77inaname · 02-26-2015, 07:57 PM

Not going to put it in until I get ready to install the oil pressure gauge so I can get the P3 to read that, as well.

Patrón · 02-26-2015, 09:57 PM

Please tell me there's some instructions

whats77inaname · 02-26-2015, 10:54 PM

Quote:

Originally Posted by Patrón

Please tell me there's some instructions

Yeah, 4 lines. Sounds pretty simple, though.

Patrón · 03-05-2015, 10:10 AM

Paid on the 25th, haven't received anything.....

02-16-2015, 07:43 PM	#24
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	Awesome info __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
	Appreciate 0 Quote

02-19-2015, 02:15 PM	#25
whats77inaname Banned 825 Rep 3,387 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	Ordered today. Price is $40 + $10 shipping. Looking @ the invoice, they're also tossing in a free t-shirt.
	Appreciate 0 Quote

02-19-2015, 05:00 PM	#30
BobS Colonel 97 Rep 2,002 Posts Drives: M3 Join Date: Feb 2009 Location: Southern NJ iTrader: (0)	That's not a bad price. I'm glad they are upgradeable. __________________ ESS 650 ACM-R Upgrades
	Appreciate 0 Quote

02-25-2015, 07:46 PM	#31
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	Finally ordered, let's see how it goes... __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
	Appreciate 0 Quote

02-25-2015, 08:57 PM	#32
whats77inaname Banned 825 Rep 3,387 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	lol My chip will be here tomorrow.
	Appreciate 0 Quote

02-26-2015, 07:57 PM	#33
whats77inaname Banned 825 Rep 3,387 Posts Drives: when at all possible Join Date: Aug 2011 Location: Tx iTrader: (25)	Arrived! Not going to put it in until I get ready to install the oil pressure gauge so I can get the P3 to read that, as well.
	Appreciate 0 Quote

02-26-2015, 09:57 PM	#34
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	Please tell me there's some instructions __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
	Appreciate 0 Quote

03-05-2015, 10:10 AM	#36
Patrón PAZUZU 545 Rep 2,058 Posts Drives: '15 M4 Join Date: Sep 2013 Location: San Antonio, TX iTrader: (1) Garage List 2015 BMW M4 [0.00] 2009 BMW M3 [10.00]	Paid on the 25th, haven't received anything..... __________________ 2009 M3 DCT ESS625+ SOLD 2015 M4 BSM/Silverstone F4LCON @texasMclub IG @jagemoets
	Appreciate 0 Quote