whats the difference between AMUL and ANLU
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Car: 89 RS, 93 Z28
Engine: Vortec 350 TBI, Lt1 6 Speed
Transmission: 700R4
whats the difference between AMUL and ANLU
I did a search but didn't find much information about the AMUL chip. I recently acquired a AMUL chip from a 1990 Caprice with a 350 TBI engine for a 8746 ECM and was wondering what the difference between this chip and the popular ANLU chip was. Is it just the speed limiter is on the AMUL chip or something else all together?
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Car: 89 RS, 93 Z28
Engine: Vortec 350 TBI, Lt1 6 Speed
Transmission: 700R4
Re: whats the difference between AMUL and ANLU
Everything I have read says it came from a L05 with "7" in the VIN and 8746 ECM and came in 89 and 90 caprice's with TBI. I know it was in a 8746 ECM because I pulled it out myself since I didn't need another ECM because I already have two 8746 ECM's
This is a CP from one site
1228746
Schematic
Application:1989-90 5.0 V8 TBI “E” L03
1991-92 5.0 V8 TBI “E” L03 (“F” body)
1989-90 5.7 V8 TBI “7” L05MEMPAK IDs:“E”: APFN, AXKS, …
“7”: ANLU, AUML, …
CALPAK IDs:16060837
Program ID:97 ($61)
Pgm ID Addr:$D004
Scan ID Addr:$D002:$D003
EPROM type:2732
EPROM offset:$D000
This is a CP from one site
1228746
Schematic
Application:1989-90 5.0 V8 TBI “E” L03
1991-92 5.0 V8 TBI “E” L03 (“F” body)
1989-90 5.7 V8 TBI “7” L05MEMPAK IDs:“E”: APFN, AXKS, …
“7”: ANLU, AUML, …
CALPAK IDs:16060837
Program ID:97 ($61)
Pgm ID Addr:$D004
Scan ID Addr:$D002:$D003
EPROM type:2732
EPROM offset:$D000
Last edited by 89RSTBI; 03-31-2010 at 01:26 PM.
#4
Re: whats the difference between AMUL and ANLU
I've gotten two ANLU ECUs out of '89 and '90 Caprices. One was a cop car ('90) and the other was a civi ('89). Both were 5.0L w/ TH200-4R
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Car: 89 RS, 93 Z28
Engine: Vortec 350 TBI, Lt1 6 Speed
Transmission: 700R4
Re: whats the difference between AMUL and ANLU
I've gotten two ANLU ECUs out of '89 and '90 Caprices. One was a cop car ('90) and the other was a civi ('89). Both were 5.0L w/ TH200-4R
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Re: whats the difference between AMUL and ANLU
You are correct! sometimes my fingers do not want to work along with my brain since I do the hunt and peck type of typing. I am sorry for the confusion. it is the AUML. now that we all know what I am talking about, can anyone tell me the difference lol
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Car: 89 RS, 93 Z28
Engine: Vortec 350 TBI, Lt1 6 Speed
Transmission: 700R4
Re: whats the difference between AMUL and ANLU
is there any difference? I looked on here and from what I could tell the speed limiter is the same on both chips https://www.thirdgen.org/forums/tbi/...code-real.html so I am guessing they are both are at least close but I am sure there has to be a difference somewhere to have different part numbers. Maybe fed/cali emissions thing?
#9
Re: whats the difference between AMUL and ANLU
well, if you are at all computer savvy, I would download the $61 dis from moates, and find a hex compare program. Then compare the ANLU and AUML bins. you can then look at the locations in the disassembly to see the differences. Be warned that it will be time consuming. I just got done editing a $0D asm file to match the bin I wanted and it took me a month working 2-3 hrs a night. On the other hand, you end up knowing the code fairly well. If you don't understand code, the easier thing to do would be to use TUNERPRO RT and load the correct XDF. Then load each bin and go thru all the tables and constants to see the differences. It is also time consuming, but a lot easier for a non-programmer to understand
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Car: 89 RS, 93 Z28
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Re: whats the difference between AMUL and ANLU
find a hex compare program
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Re: whats the difference between AMUL and ANLU
The ANLU calibration is for the 1989 MY. And the AUML calibration is for the 1990 MY. Most likely the differences are for emissions purposes. As the years went on emissions got tighter.
RBob.
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Re: whats the difference between AMUL and ANLU
There is a difference tool built into TunerPro. Read ANLU in, then set up AUML as a compare BIN. Then use the difference tool to show the differences between the cals.
The ANLU calibration is for the 1989 MY. And the AUML calibration is for the 1990 MY. Most likely the differences are for emissions purposes. As the years went on emissions got tighter.
RBob.
The ANLU calibration is for the 1989 MY. And the AUML calibration is for the 1990 MY. Most likely the differences are for emissions purposes. As the years went on emissions got tighter.
RBob.
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Car: 89 RS, 93 Z28
Engine: Vortec 350 TBI, Lt1 6 Speed
Transmission: 700R4
Re: whats the difference between AMUL and ANLU
Thanks for the information. RBob I am sorry again for the typo and the confusion it caused
#15
Re: whats the difference between AMUL and ANLU
Sorry guys, I should have checked my notebook. ANLU IS the 5.7L from the cop car. The 5.0L one I am talking about above is APFN... Hopefully didn't cause to much confusion.
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