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Old 10-24-2012, 08:33 AM   #4076 (permalink)
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Quote:
Originally Posted by cj7ole View Post
Still trying to get tranny temp to read out.
do you know how to program the x-gauge functions?

Here's the coding to get the scan gauge to read out trans temp:

Trans Fluid Temperature (Exc Allison)

TDX = 6C10F1221940(01)
RXF = 046205190640
RXD = 3008
MTH = 00090005FFD8
Name = TFT

here's the link for the rest of the commands you can pull on GM vehicles.

I found that the O2 readouts are not really useful because the data is a percentage and not a voltage. The short term and long term fuel trims are handy though.

FWIW, I usually see a trans temp that runs about 10 degrees less than water temp. My water temp is about 197f to 207F on average.

Engine is a 2006 5.3l L33 and the trans is a 2003 4L60e.

hope that helps.
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Old 10-24-2012, 09:42 PM   #4077 (permalink)
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Wayne i just shipped you my pcm, can you boost the signal by programing it to do so?
No, I can not. However, I've not heard of many with my tunes have issues with the tach not working. Not sure why that is. Makes me think the ones with issues of the tach actually have something wrong?

I've done about 800 PCM's and I bet I can count on one hand where they said the tach doesn't work.
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Old 10-24-2012, 11:07 PM   #4078 (permalink)
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tac module

using a 2006-2007 tac module on a 2003-2005 computer will cause some really weird and bad issues. but hear is the really goofy part, it wont show up right away, but it will. someday. and at the worst time. the engine will go into reduced power mode. ... the 06-07 module will plug in and work in a 03-05.. but DONT DO IT! there is a softwhere anomaly internal to the 06-07 tac module that makes it not compatable with the 03-05 pcm. heck. there is a pcm update to make the 06-07 pcm more compatable with it. i have personally delt with this a lot in my job. some last a month some longer... i just swaped one out last week that was in there for 2 years.. then left the driver stranded at the top of the mountain pass. 03-05 and 06-07 ...dont swap it... just get the correct part and do it right!!!
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Old 10-25-2012, 10:26 AM   #4079 (permalink)
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No, I can not. However, I've not heard of many with my tunes have issues with the tach not working. Not sure why that is. Makes me think the ones with issues of the tach actually have something wrong?

I've done about 800 PCM's and I bet I can count on one hand where they said the tach doesn't work.
Did the ones with tach issues happen to be a gen iv engine? After some reading online people say the tach signal isn't as strong in gen ivs and like I said now novak is saying that. I may try and boost it with a wire and resistor
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Old 10-25-2012, 04:27 PM   #4080 (permalink)
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I have the Novak tack module. It has always worked fine. All of my guages work. I called Dakota Digital and they said they didn't have one that would work and recommended Novak. They said the Jeep computer looks for the crank and cam signal not just one and I think they have to be out of phase. I used Dakata Digital's shift indicator and it works okay
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Old 10-26-2012, 09:05 AM   #4081 (permalink)
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Did the ones with tach issues happen to be a gen iv engine? After some reading online people say the tach signal isn't as strong in gen ivs and like I said now novak is saying that. I may try and boost it with a wire and resistor
I think most of them were LS truck PCM's. Say 99-07. I haven't kept track, sorry
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Old 10-26-2012, 12:22 PM   #4082 (permalink)
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If you get a Novak harness, i know they use a resistor to strengthen the signal. I have their tach black box and it works like a champ. The gauge doesn't hop or fluctuate any more than it did with the 4.0 pushing it.
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Old 10-30-2012, 08:02 PM   #4083 (permalink)
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I have question i bought what I was told is a 2003 6.0 4l65e and the wiring harness. I sent the harness and computer to wayne. Im trying to plug in all the wiring and on the driver side of the trans by the shifter is a black rectangle plug and on the harness is two round ones. Dose anyone have any ideas or did i get a trans and a harness form different years. Motor and trans came hooked together any help would be great thanks .
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Old 10-30-2012, 09:52 PM   #4084 (permalink)
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Sounds like the harness is a 2003 and transmission range switch is a 2004. Just get a 2003 switch and swap it out
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Old 10-30-2012, 09:57 PM   #4085 (permalink)
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Sounds like the harness is a 2003 and transmission range switch is a 2004. Just get a 2003 switch and swap it out
thanks
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Old 10-31-2012, 11:34 AM   #4086 (permalink)
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What antifreeze is everyone running ? Regular green or Dex cool?
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Old 10-31-2012, 12:10 PM   #4087 (permalink)
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What antifreeze is everyone running ? Regular green or Dex cool?
Dex
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Old 10-31-2012, 12:11 PM   #4088 (permalink)
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No, I can not. However, I've not heard of many with my tunes have issues with the tach not working. Not sure why that is. Makes me think the ones with issues of the tach actually have something wrong?

I've done about 800 PCM's and I bet I can count on one hand where they said the tach doesn't work.
I know mine has needle flutter from idle to around 1200rpm but if you go further up in the RPM's it smooths out and is perfectly fine. I tried putting a pull up circuit in and that didn't seem to make any difference. Not sure if I need to use a different load resistor or what. It has been one of the small detail things I've been meaning to work on.

Last edited by matts88yj; 10-31-2012 at 12:12 PM.
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Old 10-31-2012, 12:40 PM   #4089 (permalink)
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what fitting did u guys use on the clutch master cylinder? My slave has an-4 jic fitting on it?
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Old 10-31-2012, 12:45 PM   #4090 (permalink)
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what fitting did u guys use on the clutch master cylinder? My slave has an-4 jic fitting on it?
Russell Performance - Brake Adapter Fittings

I used -3, the link above has -4 part number 641001.


Hydraulic Hose = Russell 656120 Competition Series Straight -3AN to Straight -3AN Brake Hose - 42" $25.51
Clutch Fittings = Russell 640281 Clutch Fitting w/ Quod Rings -3 AN MALE FLARE $23.88
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Last edited by kmkommes; 10-31-2012 at 12:47 PM.
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Old 10-31-2012, 01:03 PM   #4091 (permalink)
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Russell Performance - Brake Adapter Fittings

I used -3, the link above has -4 part number 641001.


Hydraulic Hose = Russell 656120 Competition Series Straight -3AN to Straight -3AN Brake Hose - 42" $25.51
Clutch Fittings = Russell 640281 Clutch Fitting w/ Quod Rings -3 AN MALE FLARE $23.88
So ur saying that the male -4 an fitting will seal on my-4 jic female?
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Old 10-31-2012, 01:09 PM   #4092 (permalink)
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Yes, I guess that is what I am saying. I consider them the same for most applications.

JIC fittings are dimensionally identical to AN (Army-Navy) fittings, but are produced to less exacting tolerances and are generally less costly.
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Old 10-31-2012, 01:26 PM   #4093 (permalink)
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OK thanks a lot!!
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Old 10-31-2012, 03:34 PM   #4094 (permalink)
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I know mine has needle flutter from idle to around 1200rpm but if you go further up in the RPM's it smooths out and is perfectly fine. I tried putting a pull up circuit in and that didn't seem to make any difference. Not sure if I need to use a different load resistor or what. It has been one of the small detail things I've been meaning to work on.
Glad to see you made it through the storm
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Old 11-01-2012, 01:14 PM   #4095 (permalink)
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Glad to see you made it through the storm
Thank you sir! It was a hell of a time for sure but we managed.

Any ideas on my tach issue? We can take it to PM if you would like. Thank you!
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Old 11-02-2012, 09:05 AM   #4096 (permalink)
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Thank you sir! It was a hell of a time for sure but we managed.

Any ideas on my tach issue? We can take it to PM if you would like. Thank you!
None. Just checking in

How much is it swinging? The motor, at idle, will vary RPM's by ~50 RPM, maybe more normally. That happens because the PCM is causing the motor to switch between rich/lean a lot to test the o2's response. Because of it, it causes the idle to change.
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Old 11-02-2012, 09:29 AM   #4097 (permalink)
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None. Just checking in

How much is it swinging? The motor, at idle, will vary RPM's by ~50 RPM, maybe more normally. That happens because the PCM is causing the motor to switch between rich/lean a lot to test the o2's response. Because of it, it causes the idle to change.
At idle the needle is bouncing from 0-1000 rpm As soon as I get it above 1200-1300rpm it smooths out and reads accurately. Verified with the Tech II I have access to as well. Tach is an Autometer Phantom series and I believe it's set to the 8 cylinder setting. I'll have to double check that. I've had that thing out of the dash so many times I forget what configuration it's in.
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Old 11-02-2012, 10:17 AM   #4098 (permalink)
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At idle the needle is bouncing from 0-1000 rpm As soon as I get it above 1200-1300rpm it smooths out and reads accurately. Verified with the Tech II I have access to as well. Tach is an Autometer Phantom series and I believe it's set to the 8 cylinder setting. I'll have to double check that. I've had that thing out of the dash so many times I forget what configuration it's in.
Set it on the 4cyl setting. I think that's what your tune is set to.
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Old 11-02-2012, 10:49 AM   #4099 (permalink)
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Set it on the 4cyl setting. I think that's what your tune is set to.
I'll give it a go. Thanks!
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Old 11-02-2012, 12:58 PM   #4100 (permalink)
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What antifreeze is everyone running ? Regular green or Dex cool?
My radiator guy said to run that stuff that mixes with anything.
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