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Please reload this page to view the 200+ new activity items that have been created.
Older Activity
3 Minutes Ago
Sledhead2
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
Do some research on the thumper cams, they are noted for being a POS. Look online and you will find they are known for being all sound and no go....
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10 replies | 255 view(s)
7 Hours Ago
steveo
replied to a thread
New 350 build leaking
in
GM EFI Systems
that's really fresh oil, buddy. you must have pinched or damaged a gasket during installation, mistorqued something, missed some RTV'd corners that...
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6 replies | 104 view(s)
7 Hours Ago
steveo
replied to a thread
Greetings from S.W. Pennsylvania
in
Introductions
welcome. i know both mercruisers and the 7747 moderately well, maybe i can help. TBI with stern drives was a really short lived thing, yours was...
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1 replies | 27 view(s)
7 Hours Ago
steveo
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
most old 160 baud slow ass old tbi ECMs (which are probably older than the original nintendo entertainment system and have about the same processing...
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10 replies | 255 view(s)
8 Hours Ago
steveo
replied to a thread
Flashhack and $eehack issues
in
GM EFI Systems
it's weird for sure. i have like 1/100 users eventually report weird interface issues. maybe it's just a crap interface with a counterfeit chip...
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3 replies | 56 view(s)
13 Hours Ago
Vettepilot
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
Thanks guys. Is Megasquirt any good? But then I'm not sure what I would use for the TBI itself... Vettepilot
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10 replies | 255 view(s)
20 Hours Ago
clm2112
started a thread
Greetings from S.W. Pennsylvania
in
Introductions
Just saying Hi! Working on a TBI Mercruiser based on a GM 305 V8 Using TunerCat and wanted to check some stock eprom bin files for the 1227747
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1 replies | 27 view(s)
21 Hours Ago
355z28
replied to a thread
Flashhack and $eehack issues
in
GM EFI Systems
Yes, verified several times. Also Uninstalled all coms and went to com 3 as my numbers were getting up there. When I click test interface it says...
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3 replies | 56 view(s)
21 Hours Ago
steveo
replied to a thread
Flashhack and $eehack issues
in
GM EFI Systems
and you're sure the correct com port is selected?
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3 replies | 56 view(s)
22 Hours Ago
355z28
started a thread
Flashhack and $eehack issues
in
GM EFI Systems
First I should say I've used this software in the past with great success on dozens of cars utilizing a moates cable. Earlier this year I tried...
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3 replies | 56 view(s)
1 Day Ago
p.whiteman
started a thread
Hi everybod and greeting from Germany !!!
in
Introductions
Hello folks , I'm Phil from Germany and a proud owner of a late 86 350 Corvette TPI with Z51 option. More or less complete stock. in order to...
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0 replies | 35 view(s)
1 Day Ago
cookie 70
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
i see what you mean, i lucked up and finally found the proper ECM from a heavy duty salvage yard up north (im down in the bible belt) and they are...
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17 replies | 396 view(s)
1 Day Ago
steveo
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
with the old slow ECMS i had usually run open loop, disable AE, lock down timing outside of operating range, and just do my best. results have been...
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10 replies | 255 view(s)
1 Day Ago
steveo
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
if your IAC is too slow, throttle follower doesn't fix it or settings not available, and you want your idle to drop quickly, you can play with your...
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10 replies | 255 view(s)
1 Day Ago
Stevewarden0
started a thread
Hi All First Post and I need help!!!
in
Introductions
I am new to this! its not as easy as it looks... I have a 1971 Buick Riviera Boattail with a somewhat fubared engine, so I picked up an LM7 I...
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0 replies | 50 view(s)
1 Day Ago
dave w
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
I'm thinking the main difference between the 19186079 and the 16147525 is obviously the hexadecimal address in the chip and the associated...
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17 replies | 396 view(s)
1 Day Ago
cookie 70
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
What are the main differences?
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17 replies | 396 view(s)
1 Day Ago
stackz
replied to a thread
1988 tbi harness wiring/plug questions
in
GM EFI Systems
Thanks, didn't even notice you modified the quoted text on my phone lol
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8 replies | 118 view(s)
1 Day Ago
MO LS Noobie
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
On the later OBD 2 cars this is called throttle follower, it mimics the old dash pots on carbureted vehicle. You can adjust it for more or less delay
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10 replies | 255 view(s)
1 Day Ago
MO LS Noobie
replied to a thread
1988 tbi harness wiring/plug questions
in
GM EFI Systems
Keep Alive, Memory Power, B+ all mean it is fused battery positive. Hot in run/crank is the ignition/injector power that is only hot with key in...
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8 replies | 118 view(s)
1 Day Ago
Vettepilot
replied to a thread
CAM LOBE SEP & EFI??
in
Fuel Injection Writeups Articles and How to New and Old
Ok, thanks. One thing I hate about IAC is how slow it is to return to low idle. (On all cars with EFI.) I know it's to resist stalling, but I...
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10 replies | 255 view(s)
1 Day Ago
dave w
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
Interesting thread: http://www.gearhead-efi.com/Fuel-Injection/showthread.php?7284-Looking-for-a-ECM-for-a-old-GMC-Topkick&highlight=16147525
see more
17 replies | 396 view(s)
1 Day Ago
stackz
replied to a thread
1988 tbi harness wiring/plug questions
in
GM EFI Systems
Yeah I get that,I can't tell if the hot in run by ecm b is for that or the hot fuel module. If it's not then that would be 10a memory power
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8 replies | 118 view(s)
1 Day Ago
MO LS Noobie
replied to a thread
1988 tbi harness wiring/plug questions
in
GM EFI Systems
"ECM 1" is only hot in start/crank. Make sense?
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8 replies | 118 view(s)
1 Day Ago
Solomani
started a thread
Hello from Nevada
in
Introductions
Hi Everyone, Glad to find your site.
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0 replies | 35 view(s)
1 Day Ago
dave w
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
The installation of the GM2 likely OK. The soldering required for the GM2 is basic through hole soldering. An ohm meter can be used to test for...
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17 replies | 396 view(s)
1 Day Ago
Resin
replied to a thread
New 350 build leaking
in
GM EFI Systems
I used a composite gasket from Enginetech.
see more
6 replies | 104 view(s)
1 Day Ago
cookie 70
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
current ECM# 19186079, which i was told was an updated replacement for the 16147525. when purchased that was all i could find in stock. The adapter...
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17 replies | 396 view(s)
1 Day Ago
Tom B.
started a thread
Anyone have an 08-10 Hummer H3 .Cal file?
in
TunerCat OBDII
Anyone have an 08-10 Hummer H3 .Cal file?
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0 replies | 36 view(s)
1 Day Ago
dave w
replied to a thread
scratching my head on this one.. 1991 kodiak no start
in
GM EFI Systems
ECM 16147525 Uses a 4K chip, 24 pin. Is this original computer part number and chip for your Topkick? The 27SF512 chip is a 64K chip, 28 pin. What...
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17 replies | 396 view(s)
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