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Performance Chips????

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Old 03-24-2013, 08:19 AM   #41
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The reason diesels get good results is because it alters boost levels along with fueling and timing maps. There is some power to be pulled from the factory maps based on the fact that they are safe maps. Programmers will be able to tune maps for optimal results, which isn't always a universal thing. Running a "chip" is like throwing on someone elses tune and running it blindly.

Urd has made a map with the MAF cal and pulled 15-20hp from a stock Tacoma.
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Old 03-28-2013, 07:20 AM   #42
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Quote:
Originally Posted by Mr. Brown View Post
MAF is good but it only works at WOT. If you're trying to get better gas mileage around town, you should look into regearing. It's the best way to achieve your goal.
Only because this old thread was revived, will I address that this is an incorrect statement.

Open loop does not equal only WOT. As well, the MAF Cal works a little in Closed loop as well as Open loop.
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Old 03-28-2013, 07:31 AM   #43
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Quote:
Originally Posted by Torspd View Post
Only because this old thread was revived, will I address that this is an incorrect statement.

Open loop does not equal only WOT. As well, the MAF Cal works a little in Closed loop as well as Open loop.
I concur............incorrect info has been given in the past concerning the maf calibrator, but Gadget has shed some light on the subject and Tor is on point as usual.
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Old 03-28-2013, 07:37 AM   #45
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Quote:
Originally Posted by Torspd View Post
Amen brother.

Do you know where to find that post of Gadget's? I think that once it circulates enough, people will get the right idea.
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Old 03-28-2013, 07:40 AM   #46
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Quote:
Originally Posted by Gadget@URD View Post
There is a lot of tuning the URD MAF Calibrator in closed loop mode. You cannot alter the fuel mixture in closed loop mode with it, but you can do a lot of tuning there. We have other products that are used for altering fuel mixture in closed loop.

There are a lot of intake systems on the market that are not very well designed and cause a lot of significant induced MAF sensor error. For example on the 5vz the K&N Series 63 will cause the engine to run very lean and cause a significant positive fuel trim deviation. The Volant for the 1GR Tacoma makes the engine run very rich and causes a significant negative fuel trim deviation in closed loop from the ECU trying to compensate for it. The there is the new TRD for the 1GR Tacoma that make the engine run lean and a significant positive fuel trim deviation in closed loop.

We use the MAF Cal in closed loop to recalibrate the MAF sensor to the new tube and fix the induced sensor errors caused by poorly designed intake systems. Still tuning closed loop and fixing problems. So, yes there is a lot of closed loop tuning to be done with the MAF Cal.

You can also compensate for injectors that are different size from stock.

Just wanted to clear that up, the rest of the post is on target.

G
.
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Old 04-20-2013, 05:08 AM   #48
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there Junk
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