that is one huge pipe. 
Biggest MAF
i've been wondering, how does speed density work? It seems like having a maf would be the best way to go since it measures air & SD doesn't, but then again I know nothing about it. Is it good to use on a daily driver or would gas mileage go down. I guess I'll have to 
TECH Senior Member
Joined: Apr 2002
Posts: 6,080
Likes: 17
From: So.Cal.
First you get the VE table dialed in based on wideband O2 data (you need to disable MAF and CL to do this);
When your VE table is dialed in, then the AFR commanded by the OLFA/PE tables shows up as actual AFR on the wideband O2 data;
Then, optionally, you re-enable the MAF and repeat the procedure to get the MAF table dialed in;
Then, optionally, you re-enable CL.
OLSD uses VE to calculate airmass, and uses the OLFA/PE tables for AFR.
CLSD uses VE to calculate airmass, and in CL uses NBO2 feedback for AFR, and in OL uses the the OLFA/PE tables for AFR.
OLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and OLFA/PE tables for AFR.
CLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in CL uses NBO2 feedback for AFR, and in OL uses OLFA/PE tables for AFR.
When your VE table is dialed in, then the AFR commanded by the OLFA/PE tables shows up as actual AFR on the wideband O2 data;
Then, optionally, you re-enable the MAF and repeat the procedure to get the MAF table dialed in;
Then, optionally, you re-enable CL.
OLSD uses VE to calculate airmass, and uses the OLFA/PE tables for AFR.
CLSD uses VE to calculate airmass, and in CL uses NBO2 feedback for AFR, and in OL uses the the OLFA/PE tables for AFR.
OLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and OLFA/PE tables for AFR.
CLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in CL uses NBO2 feedback for AFR, and in OL uses OLFA/PE tables for AFR.
Last edited by joecar; Feb 21, 2007 at 09:02 PM. Reason: Correction...
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Originally Posted by joecar
First you get the VE table dialed in based on wideband O2 data (you need to disable MAF and CL to do this);
When your VE table is dialed in, then the AFR commanded by the OLFA/PE tables shows up as actual AFR on the wideband O2 data;
Then, optionally, you re-enable the MAF and repeat the procedure to get the MAF table dialed in;
Then, optionally, you re-enable CL.
OLSD uses VE to calculate airmass, and uses the OLFA/PE tables for AFR.
CLSD uses VE to calculate airmass, and in CL uses NBO2 feedback for AFR, and in OL uses the the OLFA/PE tables for AFR.
OLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in OL uses OLFA/PE tables for AFR.
CLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in CL uses NBO2 feedback for AFR, and in OL uses OLFA/PE tables for AFR.
When your VE table is dialed in, then the AFR commanded by the OLFA/PE tables shows up as actual AFR on the wideband O2 data;
Then, optionally, you re-enable the MAF and repeat the procedure to get the MAF table dialed in;
Then, optionally, you re-enable CL.
OLSD uses VE to calculate airmass, and uses the OLFA/PE tables for AFR.
CLSD uses VE to calculate airmass, and in CL uses NBO2 feedback for AFR, and in OL uses the the OLFA/PE tables for AFR.
OLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in OL uses OLFA/PE tables for AFR.
CLMAF uses the MAF for airmass above 4K RPM, and VE/MAF below 4K RPM, and in CL uses NBO2 feedback for AFR, and in OL uses OLFA/PE tables for AFR.
some1 translate that into english
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Verdad Gallardo oh, so instead of a maf, you need a wideband O2 sensor, perhaps one for each bank?? well I guess that kinda makes sense, though I didn't really understand a word of your "technical jargon" lol
