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Old 06-20-2014, 06:01 PM   #1
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Default MS3 Basic Tomfoolery

Enclosed is a log of MS3 basic shennanigans. I'm completely at a loss as to what is going on - the CLT is where I went "Mind. Blown. I need help."
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File Type: msl 2014-06-20_13.36.01.msl (1.04 MB, 42 views)
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Old 06-20-2014, 09:15 PM   #2
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I don't know what kind of (if any) proprietary features your MS3 has, but I would first ensure that there's not something goofy in the coolant temp sensor calibration. Recalibrate it (under the "tools" menu). Go from there.
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Old 06-21-2014, 12:39 PM   #3
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Already done, which is what has me going wtf?

Does the temp sensor have a polarity or something?
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Old 06-21-2014, 01:57 PM   #4
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It looks like a broken sensor or a bad sensor ground.
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Old 06-21-2014, 02:02 PM   #5
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Does that include the rpm stuff when I try to start it, Rev?

The sensor is brand new FWIW.

This is for a '94 engine to a '05 VVT swap - I'm not certain I did some parts of the wiring correctly, although I did follow Sav's instructions on the topic of the swap. The log is of several attempts to start the vehicle.

One thing that confuses the hell out of me is while I'm cranking, I can see the tuner studio rpm start at 400ish, then bounce to 100ish rpms up and down, then go to 0, then go back up to 400rpm and rinse repeat cycle while I'm cranking.
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Old 06-21-2014, 02:10 PM   #6
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it appears youre not even really syncing. Your RPMs are always showing a pattern, not true rpms, looks to me like more than a few things are out of whack.
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Old 06-21-2014, 02:29 PM   #7
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I agree with you there, Braineack.

Problem is, however, I'm unsure of where to start - I've followed Sav's instructions on the swap pretty closely, and I've hooked up the bare minimum just to get the car started at this point.

Does anyone have any advice on where to start? I'm at a loss at this point.
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Old 06-21-2014, 03:53 PM   #8
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Did the car work correctly before the swap?
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Old 06-21-2014, 04:32 PM   #9
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Yes.
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Old 06-23-2014, 07:40 PM   #10
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Disconnect everything except your timing input. Check with logger and see of that's OK.
Timing and MAP are the most important inputs to get the engine running. Everything else can wait.
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Old 06-28-2014, 09:19 PM   #11
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Enclosed are logs with only the crank MAP and the water temp sensor connected, the cam MAP and water temp sensor connected, and cam/crank/temp/MAP connected.

Also enclosed is the msq. Any advice?

What could be causing the crank/cam signal to give a false rpm signal? I'm trying to think of what it could be, but I'm at a loss - researching over the past week has given me nil for potential causes.

Even if I fucked up the wiring on the sensors, it shouldn't be doing this.
Attached Files
File Type: msl NoCamOrIAC.msl (116.6 KB, 47 views)
File Type: msl NoCrankOrIAC.msl (163.9 KB, 34 views)
File Type: msl NoTPS.msl (90.2 KB, 38 views)
File Type: msq 2014-06-28_17.15.17.msq (175.9 KB, 52 views)

Last edited by blaen99; 06-28-2014 at 09:46 PM.
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Old 06-28-2014, 09:57 PM   #12
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As I think about it, could it be a bad sensor? The crank and cam sensors are brand new, but..

Or perhaps it's a setting in the msq? I'm at a loss for what else it can be now.

Last edited by blaen99; 06-28-2014 at 10:18 PM.
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Old 06-28-2014, 10:29 PM   #13
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How about a composite log?
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Old 06-28-2014, 10:40 PM   #14
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Composite log is enclosed
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File Type: csv 2014-06-28_18.39.03.csv (10.7 KB, 34 views)
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Old 06-28-2014, 11:33 PM   #15
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Why do you say it's a false RPM signal? It looks like an actual rpm during cranking in the log.
Looks like you are getting good signals from crank and cam.
The weirdest thing I see is your MAP signal right now. Are you using the onboard MAP or an external one?
Without the TPS connected, your coolant temperature seems to indicate correctly. Looking at the NoTPS log, the engine should run, assuming that the MAP is somewhat accurate. Does it fire up?
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Old 06-28-2014, 11:39 PM   #16
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Quote:
Originally Posted by stefanst View Post
Why do you say it's a false RPM signal? It looks like an actual rpm during cranking in the log.
Brainy mentioned it wasn't true rpm.

Quote:
Looks like you are getting good signals from crank and cam.
The weirdest thing I see is your MAP signal right now. Are you using the onboard MAP or an external one?
Onboard MAP is being used. It worked perfectly prior to the new engine going in - I can try a different place for the signal source I guess?

Quote:
Without the TPS connected, your coolant temperature seems to indicate correctly. Looking at the NoTPS log, the engine should run, assuming that the MAP is somewhat accurate. Does it fire up?
The engine does not fire up.
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Old 06-29-2014, 02:35 AM   #17
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his RPM signal is in a pattern. look at each time he tires to crank it- exactly the same rpm pattern.
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Old 06-29-2014, 12:11 PM   #18
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Got any suggestions Brainy?

I'm kind of at a loss, short of something going wrong with the fuel pump install. I am going to check the fuel pump and fuel pressure later today, but I'm at a loss for how to diagnose this.
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Old 06-29-2014, 08:55 PM   #19
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There's fuel pressure, and the fuel pump works.

However, I am getting no spark. I do not know if the injectors are even firing.

I tested the cam and crank sensors for proper wiring, they appear to be correctly wired and a multimeter checks out the expected values.

Is it something in my .msq that is screwing things up?
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Old 06-29-2014, 09:11 PM   #20
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At this point, I would put the MS on the stim and try if it works wiht that.
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