Author Topic: scanmaster quit  (Read 905 times)

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Offline Shimy87

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scanmaster quit
« on: June 07 2024, 11:57:47 AM »
Back again guys!  SM just quit working other day. Been trouble shooting and heres what I got. Start car and it displays start up info, then shows  --- --- then goes to sleep so its not recieving a signal from ECU. I read where after it goes to sleep you can ground signal wire and it should "recycle" start up display....it dosent.

I also read where som ECU's fail in the area where it send signal to ADL port, and also the low speed fan relay and TCC solonoid. I have some new relays coming, the old ones seemd to work as they should.

Is there a way to test the signal wire to see if it is sending data, or do I need another SM to figure that out?

as always, thanks for any help!
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Steve Wood

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Re: scanmaster quit
« Reply #1 on: June 07 2024, 01:31:35 PM »
I think I would drop a note to Bob Bailey
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Offline ULYCYC

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Re: scanmaster quit
« Reply #2 on: June 07 2024, 03:31:02 PM »
You can also try on Turbo Tweaks site.     https://www.turbotweaksupport.com/index.php
ED BAKER
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Offline Shimy87

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Re: scanmaster quit
« Reply #3 on: June 07 2024, 07:33:38 PM »
Thanks guys!
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline daveismissing

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Re: scanmaster quit
« Reply #4 on: June 08 2024, 10:07:36 AM »
 If you had an oscilloscope you could see transitions on the ALDL wire ( not helpful I know)
Who doesn't have a spare ECM?

My experience is that Bob pretty much fixes them for life.
-Drain plug by Earl Brown, custom oil pan by Rich's Auto

Offline Scoobum

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Re: scanmaster quit
« Reply #5 on: June 11 2024, 06:59:03 PM »
When you get it figured out...hard wire it.
Hard work pays off, dreams come true. Bad times don't last, but BAD GUYS do!

RIP Scott Hall AKA Razor Ramon

Offline Shimy87

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Re: scanmaster quit
« Reply #6 on: June 12 2024, 11:27:19 PM »
It turned out to be the computer wire that goes from the logger to the wiring bar, it was just slightly pulled out and that was it. Strange it came loose on its own.
87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline Steve Wood

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Re: scanmaster quit
« Reply #7 on: June 13 2024, 08:16:57 AM »
Looks like Brad guessed right 😀
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A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline Just a Six?

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Re: scanmaster quit
« Reply #8 on: June 19 2024, 11:30:13 AM »
Glad I took a look at this thread it reminded me that mine has either a bad ground or the chip needs to come out & get re seated. It scrolls thru all the 50's codes then 40's & 30's but always starts with the 50's.
I'll do that & take the PL out & see what it says when it cools down out here it's Hot this week!
David
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Offline Grumpy

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Re: scanmaster quit
« Reply #9 on: June 22 2024, 10:22:16 AM »
I have never had one fail.  :cool;

 

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