Just got MS running and everywhere works except my LC-1
#1
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Just got MS running and everywhere works except my LC-1
Just got my (1993 5spd w/ a MS1 v2.2) running with all sensors (vtps, map, iat, etc.) working except my wideband reading (through my LC-1). The LC-1appears to be getting power (hot to the touch.. controller and sensor) and the signal wire is properly attached to the MS but no readings. Ive double checked all the wiring and connections and eveything appears to have good contact.
Any suggestions on things to check?
Any suggestions on things to check?
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I did change the settings to wideband under exhaust gas settings.
I tried hooking it up to Logworks and was unable to get a connection to that either. (thru the headphone style output connector to my laptop)
I tried hooking it up to Logworks and was unable to get a connection to that either. (thru the headphone style output connector to my laptop)
#7
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I got the LC-1 displaying a proper a/f ratio with Logworks but cant get it to display on MS. I changed to my LC1 in settings.ini and changed it over to "wideband sensor" in the MS settings. Im getting a reading of 7.35 (the bottom out number which does not change at all) a/f at idle in MS when thru logworks it is 14.7 and changes accordingly.
The LC-1's both outputs are supplying proper voltage but the MS is not taking it and displaying it thru the display.
The LC-1's both outputs are supplying proper voltage but the MS is not taking it and displaying it thru the display.
Last edited by wrxnova; 07-20-2009 at 10:14 PM.
#10
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hmm, what color wire do you have attached to the MS? yellow or brown?
It could be the WB input circuit is messed up. But the rest of the board seemed built perfect fine.
O2 comes into R1 out the to CPU. It also goes through R29 to ground, C2 is the filter on it, and D11 the flyback diode. Found on page 2: http://www.bgsoflex.com/v22/megasquirt_ShemV2.2.pdf
It could be the WB input circuit is messed up. But the rest of the board seemed built perfect fine.
O2 comes into R1 out the to CPU. It also goes through R29 to ground, C2 is the filter on it, and D11 the flyback diode. Found on page 2: http://www.bgsoflex.com/v22/megasquirt_ShemV2.2.pdf
#13
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I am able to connect and display my A/F in Logworks on my laptop thru the auxilary cable but not able to get a A/F reading thru MS. Im going to try new ground locations as ive read that having the grounds to close to the MS may cause issues.
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I just sent an email to diyautotune to see if I can send them my megasquirt to test its inputs. I think my input on my megasquirt is bad because I am getting voltage from the wideband to the megasquirt a/f input but I am not displaying any reading with any software settings.
#19
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Just realized that I have the old style LC1 based off my serial number and this requires a resistor inbetween the lc1 and ms' signal...adding now
didnt fix problem :(
While installing the resistor I started wondering if my o2 clamp maybe the problem?
didnt fix problem :(
While installing the resistor I started wondering if my o2 clamp maybe the problem?
Last edited by wrxnova; 08-16-2009 at 07:25 PM.