Read man read! Post 6 on first page of this thread!
http://www.gearhead-efi.com/Fuel-Inj...ll=1#post34977
Read man read! Post 6 on first page of this thread!
http://www.gearhead-efi.com/Fuel-Inj...ll=1#post34977
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Read man read!
Post 21 of this thread you started!
http://www.gearhead-efi.com/Fuel-Inj...ll=1#post34996
The change between 94 and 95 is the TCC changed to a PWM version which had much heavier Kevlar IIRC clutches for more slippage and smoother operation and of course programming in the PCM bin file.
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Hey EagleMark
How do I find out the rear/front ratio of a bin file if it isn't in the description? my truck has 3.73 gear ratios
After several hours of combing through my current 1994 bin file I came upon this "TCC PWM 1995 Only" and checked the SET box so now I won't need to rewrite my bin to accomodate my 1995 4L60E right?
Last edited by K1500ss4x4; 02-09-2014 at 08:43 AM.
"When the people find they can vote themselves money, that will herald the end of the republic" -Ben Franklin
Gear ratios in descriptions are just notes someone has added in. There's nothing in this particular PCM that has anything to do with axle ratios. I've found very little to no difference in how the tune is changed because of axle ratios... so don't worry...
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Cool thanks for that I was worried about using the wrong ratio.
Well i"ve used the idle tables to really bring down the idle in park I'm at 700 in D I'm at 600 awesome!!
Now how do I get my Tach in the dash to read the same as the tach in TunerPro? it's about 500 rpm to fast since i switched from v6 to v8.
"When the people find they can vote themselves money, that will herald the end of the republic" -Ben Franklin
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
-= =-
Yeah it might be a electro-mechanical thing (like a resistor change) because the tach is definitely still off by at least 500 rpm the redline goes OVER 5000 rpm and the shift points don't seem right unless I'm completely nursing it and when TunerPro says I'm at 600 rpm my tach says more like 1100 rpm
Last edited by K1500ss4x4; 02-10-2014 at 03:59 AM.
"When the people find they can vote themselves money, that will herald the end of the republic" -Ben Franklin
Oh no! another question!!!
I put in a 180 deg thermostat stock is 195 deg I don't want it running that hot are there any changes I'll need to make in the software to compensate?
"When the people find they can vote themselves money, that will herald the end of the republic" -Ben Franklin
All the aftermarket tachs I have seen have a switch on the back for 4, 6, or 8 cyl engines. They simply count the number of times the coil discharges in a set ammount of time and use that to display rpm.
Not knowing how the factory chevy tach is set up, I do not know if the curent one could be modded to work, or if it would need swapped out for a V8 one. I'm sure a little google searching could find you the answer.
79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy
93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver
99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.
89 K1500 Scottsdale 5.7L 5spd 3:42 RamJet cam Dart iron TBI heads 427 PCM swap
95 C2500 Cheyenne 6.5L turbo diesel 4L80e 4:10 DB2-4911 Manual pump conversion 0411 PCM trans control 2Bar COS
05 Outback XT 2.5L turbo gas auto
Dakota Digital
SGI-8 Tachometer Interface
http://www.dakotadigital.com/index.c...rod/prd127.htm
Do-it yourself articles, the problem is, different years use different capacitor values.
http://www.s10forum.com/forum/f62/ho...-heavy-481326/
http://www.chevytalk.org/fusionbb/pr...php?tid/56905/
Last edited by Woods; 02-10-2014 at 06:07 PM. Reason: added links
Bookmarks