mtx-l compared to lc-1 questions
11-06-2011, 05:28 PM
#22
MFz Regular
Join Date: Oct 2011
Location: Charlotte
Posts: 248
Hey scott, I was thinking, (which usually doesnt end well, lol) Is there any way to get the lc-1 controller to output just a specific value?
Like have it put out lets say 10 afr, so you can compare it with what tunerstudio is seeing, and then do the same for something around 16 afr. That way you could get a more accurate linear progression line. and be more accurate in the area you need the MS to see most accurately?
Cause I know my MS is seeing differently than my gauge, and i know its about an afr off, in the most important spot, around 14 afrs. but everywhere else im not sure,
PS I am going to try your voltage values as well and see if i cant get something more reasonable.
Like have it put out lets say 10 afr, so you can compare it with what tunerstudio is seeing, and then do the same for something around 16 afr. That way you could get a more accurate linear progression line. and be more accurate in the area you need the MS to see most accurately?
Cause I know my MS is seeing differently than my gauge, and i know its about an afr off, in the most important spot, around 14 afrs. but everywhere else im not sure,
PS I am going to try your voltage values as well and see if i cant get something more reasonable.
11-06-2011, 05:32 PM
#23
MFz Regular
Thread Starter
Join Date: Jul 2011
Location: Elkhart, IN
Posts: 60
your lc-1 will read much more steady when the motor is not running. and make sure to start the car first so there are exhaust gases in the tail pipe
11-07-2011, 12:19 PM
#25
Hey scott, I was thinking, (which usually doesnt end well, lol) Is there any way to get the lc-1 controller to output just a specific value?
Like have it put out lets say 10 afr, so you can compare it with what tunerstudio is seeing, and then do the same for something around 16 afr. That way you could get a more accurate linear progression line. and be more accurate in the area you need the MS to see most accurately?
Cause I know my MS is seeing differently than my gauge, and i know its about an afr off, in the most important spot, around 14 afrs. but everywhere else im not sure,
PS I am going to try your voltage values as well and see if i cant get something more reasonable.
Like have it put out lets say 10 afr, so you can compare it with what tunerstudio is seeing, and then do the same for something around 16 afr. That way you could get a more accurate linear progression line. and be more accurate in the area you need the MS to see most accurately?
Cause I know my MS is seeing differently than my gauge, and i know its about an afr off, in the most important spot, around 14 afrs. but everywhere else im not sure,
PS I am going to try your voltage values as well and see if i cant get something more reasonable.
for example: make the output as .9v to 1v and 10-20:1, then try 1.9v-2.0v, etc. Sit with the key on like jared suggets and you can compare the various voltage ranges that way.
Really, the issue is simply a voltage offset. The output is linear, as well as what the input is expecting, but when the LC1 is outputting lets say 14.7:1 @ 2.35v, the MS is only seeing 2.15v, so it displays a different value. That same offset is going to be the same through the range.
The best thing would be to do this, and then acutally read your voltage off the LC1 and at the MS cpu. But I found the .22v offset like I've given previously seems to get most installs to match up fairly well.
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