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Old 04-26-2011, 05:23 PM   #18
rfmaster
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Join Date: Oct 2003
Location: OC CA
Posts: 1,374
Re: Tbi swap build thread

Steve

1) AIR is only active when engine is cold and operating in open loop (O2 is not providing feedback). If you have 7747 ECM there is no AIR related DTC.

2) EGR function can be easily disabled by increasing EGR Temp On parameter to 155C (255 counts). To completely disable EGR DTC in TunerPro uncheck Malf Flag 32 in your Bin file and save.

3) I use flash chips AT29C256 or 27SF512 with a slightly modified G2-0.6 adapter (with ZIF socket) in my 7747, 8746 ECM's. A29C256 is still available from Future Electronics:

http://www.futurlec.com/Memory/AT29C256pr.shtml

4) For greater flexibility I prefer to use GQ-4X Willem Programmer from MCUmall. It is more than you need and BURN2 Chip Programmer from Moates will work just fine for you.

5) I use 2PRS in my conversions - Dakota digital should work as well. IRC, they have auto calibration capability so that you do not have to worry about having correct speedometer gear combination. It can be a real PITA trying to get a right pair of gears for speedometer to indicate correct speed. However, if you have OE mechanical speedometer (73) you must select correct gears. It is not as bad as it sounds - you need to know:

Drive gear teeth count (inside tail housing)
rear end ratio
tire diameter.

plug into equation

http://www.tciauto.com/Products/Tech...eedo_gears.asp

driven gear tooth count.
//RF
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