I've got some major MS1 HARDWARE issues
01-02-2011, 06:19 PM
#21
I measured them at the clip. On prong in each wire. The injectors were unplugged and put the key in I guess it woudl be RUN. Sorry I got ACC and RUN confused. The key was as far into the on position without the engine actually running.
- .00/.01 (fluctuated) injector 1
- 11.56 injector 2
- .01 injector 3
- 11.56 injector 4
Cyl 2 and 4 are the ones that keep flooding.
So it would seem to me that when the key is in RUN, I am measuring both the 12V and the ground wire on the clip and getting almost 12V of power as a reading meaning the circut is grounded. Both cyl 1/3 are not getting any power when it's in RUN meaning those circuts are not being grounded IE not injecting.
- .00/.01 (fluctuated) injector 1
- 11.56 injector 2
- .01 injector 3
- 11.56 injector 4
Cyl 2 and 4 are the ones that keep flooding.
So it would seem to me that when the key is in RUN, I am measuring both the 12V and the ground wire on the clip and getting almost 12V of power as a reading meaning the circut is grounded. Both cyl 1/3 are not getting any power when it's in RUN meaning those circuts are not being grounded IE not injecting.
Reply
0
0
01-02-2011, 06:47 PM
#23
If your voltmeter can read resistance odds are it can be used to check continuity as well. From the diagram above the signal for the injectors comes out at the end of either q14 or q15. Not sure which is which injectors though. Backtracking the circuit is probably the best thing to do. Take the MS out of the car and check for continuity between the signal outputs and ground. If there is continuity then there is a short on the board somewhere.
When I built my last one I had a solder bridge across q14. It didnt hold the injectors open but held them closed instead. Still may be related though.
Reply
0
0
01-02-2011, 06:51 PM
#24
I have the board sitting in front of me right now. So I should figure out what pin on the output is injector 2/4 and do what with it? Sorry man, I hate to sound so incompetent but I'm pretty lost. My meter can check continuity, but I'm at a loss to how I do that here? Touch one mutimeter pin to the ouput of the board and the other to where the circut starts (Q14/Q15)? And see if it completes a circut?
Reply
0
0
01-02-2011, 07:03 PM
#26
Elite Member
iTrader: (10)
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,976
Total Cats: 355
I measured them at the clip. On prong in each wire. The injectors were unplugged and put the key in I guess it woudl be RUN. Sorry I got ACC and RUN confused. The key was as far into the on position without the engine actually running.
- .00/.01 (fluctuated) injector 1
- 11.56 injector 2
- .01 injector 3
- 11.56 injector 4
- .00/.01 (fluctuated) injector 1
- 11.56 injector 2
- .01 injector 3
- 11.56 injector 4
Reply
0
0
01-02-2011, 07:35 PM
#35
I just checked again to be sure. With the ignition OFF, I get zero readings on all four clips on the ground wire to the chassis.
With the key in ON, I get -.19 on clips 2/4 and zero reading on clips 1/3.
So that would make me belive that the grounding issue is not in the chassis wiring or it would give me a reading regardless if the the car was set to ON or OFF? Since it only gives me a continuity reading when the key is ON, that means it's something inside the box? Am I right in thinking this? Also, if the grounding issue was in the wiring, then the injector would be completing a circut even without the MS box in the car when the key is in ON? Since it dosen't do that, again... makes me belive the problem is in the box not the wiring.
I got a reading from Q3 to injector 2/4 pins on my board while checking continuity. No other pins gave a reading except the middle one on Q3.
With the key in ON, I get -.19 on clips 2/4 and zero reading on clips 1/3.
So that would make me belive that the grounding issue is not in the chassis wiring or it would give me a reading regardless if the the car was set to ON or OFF? Since it only gives me a continuity reading when the key is ON, that means it's something inside the box? Am I right in thinking this? Also, if the grounding issue was in the wiring, then the injector would be completing a circut even without the MS box in the car when the key is in ON? Since it dosen't do that, again... makes me belive the problem is in the box not the wiring.
I got a reading from Q3 to injector 2/4 pins on my board while checking continuity. No other pins gave a reading except the middle one on Q3.
Reply
0
0
01-02-2011, 09:28 PM
#38
Cpt. Slow
iTrader: (25)
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 14,175
Total Cats: 1,129
Is this a bump or your version of deleting a post? Either way I'm deleting them.
If it's a bump, you need to chill the **** out. Hell, either way you need to chill the **** out. Make sure you know what you're talking about before posting. You have the equivalent of about 60 years electronic experience between JP, Reverent, and others that are chiming in, and they're having difficulties understanding you. Don't waste their time or patients, you can't afford it.
Put your MS in Anton's car, my bet is his car will run fine. Because if I have this right, your car ran fine until you did a wire tuck, and now you're blaming the MS.
If it's a bump, you need to chill the **** out. Hell, either way you need to chill the **** out. Make sure you know what you're talking about before posting. You have the equivalent of about 60 years electronic experience between JP, Reverent, and others that are chiming in, and they're having difficulties understanding you. Don't waste their time or patients, you can't afford it.
Put your MS in Anton's car, my bet is his car will run fine. Because if I have this right, your car ran fine until you did a wire tuck, and now you're blaming the MS.
Reply
0
0
