boot loader & crank sensor

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jrods2
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boot loader & crank sensor

Post by jrods2 »

Tuner Studio MS v3.0.18
(MS2/Extra 3.4.2 release 20160431 11:50BST(c)KC?JSM?JB MS2)
390 CID v8 ford 47LB Injectors 36/1 crank Missing tooth, Hall Crank sensor, Batch fuel injection,
ECU is a MS2 v3
I was having a problem with reading the crank sensor, At first was just getting 19 of 35 teeth reading. If I tried to save a tooth log it wouldn't record anything so the file was empty, same with Composite Logger. I then ran the coil and injector tests. the coil was firing. Only 4 injectors were working, had 2 injectors on each wire. Started doing voltage tests and found I had 1.3 milli volts going to body ground. added another ground wire(10 guage) back to the battery & totally separated the MS from any other fused systems on the car ie: accessories, Now I have no feedback. Done some voltage test per manual assembly and all OK. Sent the ECU to a repair shop and when I got it back I got NO reading using composite or tooth logger, coil won't fire, and injectors activate when ever they want to. Inquired about how to test Crank Sensor and it was Bad so I ordered another and checked it right out of the package and it's good, Further snooping I found a test to check to see if Boot Loader was getting the Right voltage and found 5 volts across the terminals which indicated a bad processor. As of now I can't get the ecu to read on the Jim Stem or to connect to TS.
I've had some serious issues with connecting to ECU using FTDI ( Brian at EFI was connected to my system for a couple hours & he couldn't get it right so my hat off to Brian) but I've put that aside due to the bad Daughter card(I assume).
Anybody got any idea's where to start testing? I plan to purchase another unit to assemble but would like to see if I can find out why this unit failed.
jrods2
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boot loader & crank sensor

Post by jrods2 »

Tuner Studio MS v3.0.18
(MS2/Extra 3.4.2 release 20160431 11:50BST(c)KC?JSM?JB MS2)
390 CID v8 ford 47LB Injectors 36/1 crank Missing tooth, Hall Crank sensor, Batch fuel injection,
ECU is a MS2 v3
I was having a problem with reading the crank sensor, At first was just getting 19 of 35 teeth reading. If I tried to save a tooth log it wouldn't record anything so the file was empty, same with Composite Logger. I then ran the coil and injector tests. the coil was firing. Only 4 injectors were working, had 2 injectors on each wire. Started doing voltage tests and found I had 1.3 milli volts going to body ground. added another ground wire(10 guage) back to the battery & totally separated the MS from any other fused systems on the car ie: accessories, Now I have no feedback. Done some voltage test per manual assembly and all OK. Sent the ECU to a repair shop and when I got it back I got NO reading using composite or tooth logger, coil won't fire, and injectors activate when ever they want to. Inquired about how to test Crank Sensor and it was Bad so I ordered another and checked it right out of the package and it's good, Further snooping I found a test to check to see if Boot Loader was getting the Right voltage and found 5 volts across the terminals which indicated a bad processor. As of now I can't get the ecu to read on the Jim Stem or to connect to TS.
I've had some serious issues with connecting to ECU using FTDI ( Brian at EFI was connected to my system for a couple hours & he couldn't get it right so my hat off to Brian) but I've put that aside due to the bad Daughter card(I assume).
Anybody got any idea's where to start testing? I plan to purchase another unit to assemble but would like to see if I can find out why this unit failed.
jsmcortina
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Re: boot loader & crank sensor

Post by jsmcortina »

I'm confused.
Why did you send your ECU away? Sounded like it was working??

Then when it came back it doesn't work at all? If that's the case it sounds like you need to discuss this with whoever worked on it.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

2017-03-22_09.50.48.msq
After I got it back the comms problem surfaced again and with it getting 5 volts across the Boot loader I figured I'd try my luck here.
Near as I can figure is to either buy another Daughter card &/or buy another unit to assemble since I don't have the smarts or equipement to research this one.
Thanks for the help.
I'm posting the msq on the ECU when I got it back.
jsmcortina
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Re: boot loader & crank sensor

Post by jsmcortina »

Which boot jumper are you talking about - the one on the MS2 card? It is correct to see 5V across it.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

jsmcortina wrote:Which boot jumper are you talking about - the one on the MS2 card? It is correct to see 5V across it.

James
manual says 2 volts
jsmcortina
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Re: boot loader & crank sensor

Post by jsmcortina »

Different jumper. That's "H1 boot" on the mainboard.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
grom_e30
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Re: boot loader & crank sensor

Post by grom_e30 »

1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

grom_e30 wrote:http://www.msextra.com/manuals/ms2manuals/ those manuals??
yes these are the manuals
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

jsmcortina wrote:Different jumper. That's "H1 boot" on the mainboard.

James
yep that's the puppy
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

sorry, I'm talking about the one on the Daughter card. H1. Manual states it's supposed to have 2 volts not 5v. It's used to load firmware. Since the Daughter card contains the comms I believe it is the source of the problem. So all I'm asking is if there are some things I can do to disprove it?
Thanks for your help
P.S. I've also noticed that the tune is changing without making changes. I have the msq's if you'd like to see them. the difference reports varies it.
Again thanks.
jsmcortina
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Re: boot loader & crank sensor

Post by jsmcortina »

That's incorrect. Please post a link to the part of the manual that says the daughtercard bootloader should be 2V.

James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk

My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
grom_e30
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Re: boot loader & crank sensor

Post by grom_e30 »

isn't boot on the ms2 card jp5? and h1 is the boot on the main board.
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

BOOT LOADER.jpg
dis is B/LD
I hate when you guys get confusing me. ha ha
If yun read me first post it refrences ye daughter card, nutin said bout the main board.
her's a pic of da Boot Loader on daughter card
I'm might be just as well off to put da carb back on & go to the Goodguys show in Del Mar this comin weekend.
cheeryoh mates, see ya delmar
grom_e30
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Re: boot loader & crank sensor

Post by grom_e30 »

The voltage across "Boot" jumper H1 should be one sixth (1/6) of the main voltage supply. i.e. with a 12V
supply you will see 2V there.
2v on the main board good, 5v on the ms2 card good as its a 5v processor.

it does not mention jp5 the boot jumper on the ms2 card at all.

the tune changing by its self sounds like serial corruption prob a bad serial adaptor
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

grom_e30 wrote:
The voltage across "Boot" jumper H1 should be one sixth (1/6) of the main voltage supply. i.e. with a 12V
supply you will see 2V there.
2v on the main board good, 5v on the ms2 card good as its a 5v processor.

it does not mention jp5 the boot jumper on the ms2 card at all.

the tune changing by its self sounds like serial corruption prob a bad serial adaptor
Dat sound bad news.

The usb DIY adapter was tested by independent, worked great for them so that problem is resolved.

Got any where else to look at.
jrods2
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Re: boot loader & crank sensor

Post by jrods2 »

jsmcortina wrote:I'm confused.
Why did you send your ECU away? Sounded like it was working??

Then when it came back it doesn't work at all? If that's the case it sounds like you need to discuss this with whoever worked on it.

James
Where in my post does it say my ecu was working?
hybrid
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Re: boot loader & crank sensor

Post by hybrid »

Do you have a stim?
Do not load someone elses tune and expect it to work for you!
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