MAF translator
Thread Starter
Pro
Joined: Jan 2004
Posts: 626
Likes: 2
From: Nashville
MAF translator
I found a MAF translotor that says it can modify your fuel curve without software and takes only pluging it in. Can these be used on a LT-1 96 I would think so but haven't heard of anyone using one here???
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: MAF translator (96BLKTN)
The 255 limit? Hmm with just a 52mm TB and a modified MAF I seriously doubt that you could ever hit the limit of the stock MAF. Even stock engines with blower kits on them have not maxed out a GM MAF.
If you modified your MAF the output (air flow vs Gms) to the PCM has probably changed. That means that with the same airflow the MAF now outputs a different frequency to the PCM which in turn fuels for that output. If its high then the PCM adds more fuel than is needed which the O2 sensors will see, which in turn causes the PCM to drop the long term fuel trims to get the system back in line. And if the calibration is way off, then the PCM can only correct to a point. Beyond that it just hits its limit and can't correct any more.
If you modified your MAF the output (air flow vs Gms) to the PCM has probably changed. That means that with the same airflow the MAF now outputs a different frequency to the PCM which in turn fuels for that output. If its high then the PCM adds more fuel than is needed which the O2 sensors will see, which in turn causes the PCM to drop the long term fuel trims to get the system back in line. And if the calibration is way off, then the PCM can only correct to a point. Beyond that it just hits its limit and can't correct any more.
Thread Starter
Pro
Joined: Jan 2004
Posts: 626
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From: Nashville
Re: MAF translator (tjwong)
Yea I know I'm not near the 255 limit. I would need a turbo or somrthing. Is this a good idea or waste of money? I have read that this was the only way to mod the LS1 until LS1 edit came out and a lot of GN Buicks use them I also know that the OEM MAF for those were discon. I was looking around the Camero forums and see people using them. I was wondering if the o2's would learn and run fine? I know that a Dyno tune would be best but I don't know of one here in Memphis. Thanks for the input....
Drifting
Joined: Apr 1999
Posts: 1,261
Likes: 6
From: Middletown New Jersey
Re: MAF translator (96BLKTN)
Are you sure that the limit applies to the 96? I thought the only motors with this issue were the 85-89 MAF(analog) cars due the fact that they have ECM's with 8 bit processors. It was mot an issue with the MAP cars and when the the newer MAF/MAP cars came out (94?95-96 I believe) they used digital MAFs and had 16 bit processors.
Pro
Joined: Jul 2001
Posts: 557
Likes: 0
From: Taxahoma
Re: MAF translator (GlennS87)
Are you sure that the limit applies to the 96? I thought the only motors with this issue were the 85-89 MAF(analog) cars due the fact that they have ECM's with 8 bit processors. It was mot an issue with the MAP cars and when the the newer MAF/MAP cars came out (94?95-96 I believe) they used digital MAFs and had 16 bit processors.
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Thread Starter
Pro
Joined: Jan 2004
Posts: 626
Likes: 2
From: Nashville
Re: MAF translator (Black87c4)
I could get this for $100 and the ODB2 edit tool is like $500 but a new cam is in the future so maybe I should just save my $$$$? Just wondering before I dropped the cast on one....
