Evo 1 GSR not starting, odd situation yet similar to countless others.
- Thread starter Celeb3000
- Start date
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4piknup
master of none
Sweet. Both have it.
The second pic is just left of top centre
The first is just right of bottom centre.
Either should work fine.
You have the technology, measure away...
As I said on last page. Measure any other ic and get a reading of 0.694 (or similar) with red lead on pin1 and black on pin8 of the ic.
Thats the setting you need, then with that setting measure as listed previous
The second pic is just left of top centre
The first is just right of bottom centre.
Either should work fine.
You have the technology, measure away...
As I said on last page. Measure any other ic and get a reading of 0.694 (or similar) with red lead on pin1 and black on pin8 of the ic.
Thats the setting you need, then with that setting measure as listed previous
So computer is back, clean as a whistle. All of the scorching and corrosion is gone and upon close inspection looks fantastic.
Didn't make a dent............
I've tried rereading your post on testing the ecu, is there more of a dummies guide. I can't understand and I forgot to print it for my friend to test it.
**side note**, i've been told that the vehicle was in a passenger side pole accident. Not major but has been. Is there anything that would disable the car from running because of this? The one persons point of a previous alarm, or a disabler got stuck in my head. I count it out because of the original question, why would it just randomly die.
Didn't make a dent............
I've tried rereading your post on testing the ecu, is there more of a dummies guide. I can't understand and I forgot to print it for my friend to test it.
**side note**, i've been told that the vehicle was in a passenger side pole accident. Not major but has been. Is there anything that would disable the car from running because of this? The one persons point of a previous alarm, or a disabler got stuck in my head. I count it out because of the original question, why would it just randomly die.
4piknup
master of none
Dunno why. These things happen. I had a blown one that didnt even make a mess.
This is your ic driver chip. Pin1 is on left, pin 8 is on right.
Select diode check on your multimeter. Put the red lead on pin1 and the black lead on pin8. You should get a reading like 0.694, measure ic108 and measure the one next to it to compare.
Unplug ecu and take it to a well lit workspace.
You will need to remove the ecu from its case completely and work from the bottom of the board where the solder is. Dont touch any metal parts with fingers, handle by the edges of the board or the plug block. Be careful with the probes that you dont slip with them and short something out
Is that better?
This is your ic driver chip. Pin1 is on left, pin 8 is on right.
Select diode check on your multimeter. Put the red lead on pin1 and the black lead on pin8. You should get a reading like 0.694, measure ic108 and measure the one next to it to compare.
Unplug ecu and take it to a well lit workspace.
You will need to remove the ecu from its case completely and work from the bottom of the board where the solder is. Dont touch any metal parts with fingers, handle by the edges of the board or the plug block. Be careful with the probes that you dont slip with them and short something out
Is that better?
Thanks
4piknup
master of none
Once you do that combination. Do these and post results:
jack of all said:
This is IC108, hope that is correct
normal - reversed
Pin1-pin8 - no reading / 010
Pin7-8 - no reading / 010
Pin4-1 - 005 / no reading
Pin4-7 - no reading / 010
Pin4-2 - 006 / 015
Pin4-3 - 007 / 041
Pin5-3 - 014 / 056
Pin4-5 - 011 / 011
Pin4-6 - 011 / 012
Pin5-6 - 016 / 025
Pin4-8 - no reading / 012
Measure them again with the leads reversed and post results. Done
Also need to measure from ic108 pin1 to ecu pin22 (aircon wire)
And ic108 pin pin7 to ecu pin8 (fuel pump)
This checks the trace from the ecu plug to the ic108
normal - reversed
Pin1-pin8 - no reading / 010
Pin7-8 - no reading / 010
Pin4-1 - 005 / no reading
Pin4-7 - no reading / 010
Pin4-2 - 006 / 015
Pin4-3 - 007 / 041
Pin5-3 - 014 / 056
Pin4-5 - 011 / 011
Pin4-6 - 011 / 012
Pin5-6 - 016 / 025
Pin4-8 - no reading / 012
Measure them again with the leads reversed and post results. Done
Also need to measure from ic108 pin1 to ecu pin22 (aircon wire)
And ic108 pin pin7 to ecu pin8 (fuel pump)
This checks the trace from the ecu plug to the ic108
4piknup
master of none
Yea mine has 6 I think. Just depends on the car..
Something is not right.
Try pin 1 to pin 8 on the other ics.
Pin 1 to pin 8 measures 1 diode inside the ic. It should read 0.694 or close (other one here is 0.677)
Try the other multimeter.
Something is not right.
Try pin 1 to pin 8 on the other ics.
Pin 1 to pin 8 measures 1 diode inside the ic. It should read 0.694 or close (other one here is 0.677)
Try the other multimeter.
4piknup
master of none
Reading pin 1-8 red-black should show 0.694, reversed should show no reading as the diode blocks the power flow
Pin 7-8 should be the same reading as it measures another diode 0.694 or so, and reversed should be no reading.
You have the same numbers on your tests (good) and no reading when reversed (good) but the numbers are wrong and the leads are wrong way around. ??
Pin 7-8 should be the same reading as it measures another diode 0.694 or so, and reversed should be no reading.
You have the same numbers on your tests (good) and no reading when reversed (good) but the numbers are wrong and the leads are wrong way around. ??
4piknup
master of none
In the board or out makes no difference.
I did all of them. Same result -/+ 10 if I have the red terminal on pin 1 and the black terminal on any of the 7 ics pin 8's.
I reverse the terminals and I get no reading when I put black on pin 1 and red on any of the 7 ics pin 8's.
Other meter is not reading anything anywhere, assuming it is broken.
I reverse the terminals and I get no reading when I put black on pin 1 and red on any of the 7 ics pin 8's.
Other meter is not reading anything anywhere, assuming it is broken.
4piknup
master of none
So the first 2 have the results reversed then. Has a reading forwards and no reading reversed?Celeb3000 said:
Is the result for pin 4-7 reversed too?
4piknup
master of none
This part looks good. I read this on 200ohm scale and read 0.4 ohm resistance. Often the ecu blows a trace and can be expensive to replace.Celeb3000 said:
ic108 -
normal [black/redl - reversed [red/black] [as in black is always on the lowest number, red always on the highest] [vs. red always on the lowest number, black always on the highest]
Pin1-pin8 - ` no reading / 003
Pin7-8 - no reading / 004
Pin4-1 - 004/ no reading
Pin4-7 - no reading / 006
Pin4-2 - 007 / 011
Pin4-3 - 008 / 030
Pin5-3 - 017 / 044
Pin4-5 - 023 / 009
Pin4-6 - 014 / 010
Pin5-6 - 015 / 022
Pin4-8 - no reading / 011
normal [black/redl - reversed [red/black] [as in black is always on the lowest number, red always on the highest] [vs. red always on the lowest number, black always on the highest]
Pin1-pin8 - ` no reading / 003
Pin7-8 - no reading / 004
Pin4-1 - 004/ no reading
Pin4-7 - no reading / 006
Pin4-2 - 007 / 011
Pin4-3 - 008 / 030
Pin5-3 - 017 / 044
Pin4-5 - 023 / 009
Pin4-6 - 014 / 010
Pin5-6 - 015 / 022
Pin4-8 - no reading / 011
ic 109
normal [black/redl - reversed [red/black] [as in black is always on the lowest number, red always on the highest] [vs. red always on the lowest number, black always on the highest]
Pin1-pin8 - ` no reading / 014
Pin7-8 - no reading / 014
Pin4-1 - 014/ no reading
Pin4-7 - no reading / 015
Pin4-2 - 015 / 022
Pin4-3 - 016 / 058
Pin5-3 - 031 / 080
Pin4-5 - 042 / 016
Pin4-6 - 021 / 018
Pin5-6 - 027 / 034
Pin4-8 - no reading / 018
normal [black/redl - reversed [red/black] [as in black is always on the lowest number, red always on the highest] [vs. red always on the lowest number, black always on the highest]
Pin1-pin8 - ` no reading / 014
Pin7-8 - no reading / 014
Pin4-1 - 014/ no reading
Pin4-7 - no reading / 015
Pin4-2 - 015 / 022
Pin4-3 - 016 / 058
Pin5-3 - 031 / 080
Pin4-5 - 042 / 016
Pin4-6 - 021 / 018
Pin5-6 - 027 / 034
Pin4-8 - no reading / 018
4piknup
master of none
Im sorry this is frustrating. I asked for the red on the first number and the black on the second.
This is not for fun, this is the order inside the chip. The logical progression of things (in my head anyway).
Anyway, the numbers are still wrong for me to read effectively. I can see by you testing the ic109 as well that at least they are consistent. Any diode should be reading 0.6 or so. Without this I cant help much.
The ic looks ok but I cant really tell. The burnt board says its stuffed, the testing doesnt confirm it without a baseline from pin 1-8
Google diode testing and you will see your reading is off.
Maybe the battery is nearly pooped in your meter or the leads are stuffed (do they read 0 when leads touch together, on the ohm scale)
This is not for fun, this is the order inside the chip. The logical progression of things (in my head anyway).
Anyway, the numbers are still wrong for me to read effectively. I can see by you testing the ic109 as well that at least they are consistent. Any diode should be reading 0.6 or so. Without this I cant help much.
The ic looks ok but I cant really tell. The burnt board says its stuffed, the testing doesnt confirm it without a baseline from pin 1-8
Google diode testing and you will see your reading is off.
Maybe the battery is nearly pooped in your meter or the leads are stuffed (do they read 0 when leads touch together, on the ohm scale)
Sorry man, misunderstood. I will do correctly for you. Im trying to read on what the numbers for this multimeter relate to for you.
Leads read 00.1 on ohm scale when touched.
Unit is brand new.
ic108
Pin1-pin8 - ` 003/ 1~
Pin7-8 - 003 / 1~
Pin4-1 - 004/ 1~
Pin4-7 - 004 /1~
Pin4-2 - 005 / 008
Pin4-3 - 006 / 014
Pin5-3 - 013 / 032
Pin4-5 - 006 / 018
Pin4-6 - 008 / 011
Pin5-6 - 020 / 021
Pin4-8 - 010 / 1~
Leads read 00.1 on ohm scale when touched.
Unit is brand new.
ic108
Pin1-pin8 - ` 003/ 1~
Pin7-8 - 003 / 1~
Pin4-1 - 004/ 1~
Pin4-7 - 004 /1~
Pin4-2 - 005 / 008
Pin4-3 - 006 / 014
Pin5-3 - 013 / 032
Pin4-5 - 006 / 018
Pin4-6 - 008 / 011
Pin5-6 - 020 / 021
Pin4-8 - 010 / 1~
Red/Black - Black/Red
Pin1-8 = .669 - N/A
Pin7-8 = .669 - N/A
Pin4-1 = .520 - N/A
Pin4-7 = .517 - N/A
Pin4-2 = .515 - .696
Pin4-3 = .586 - N/A
Pin5-3 = .N/A - N/A
Pin4-5 = .489 - N/A
Pin4-6 = .642 - N/A
Pin5-6 = N/A - N/A
Pin4-8 = .482 - N/A
IC108 pin 7 to Pin 8 - .001
IC108 pin 1 to pin 22 - .001
Pin1-8 = .669 - N/A
Pin7-8 = .669 - N/A
Pin4-1 = .520 - N/A
Pin4-7 = .517 - N/A
Pin4-2 = .515 - .696
Pin4-3 = .586 - N/A
Pin5-3 = .N/A - N/A
Pin4-5 = .489 - N/A
Pin4-6 = .642 - N/A
Pin5-6 = N/A - N/A
Pin4-8 = .482 - N/A
IC108 pin 7 to Pin 8 - .001
IC108 pin 1 to pin 22 - .001
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