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Old 05-09-2011, 12:45 PM   #21
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OK I downloaded the link and installed it. There were errors generated of incompatibility which on review of the error log, looked mostly like conversion. I used English units. I hope that it otherwise installed. Uunfortunately it still did not start. I need to go to work soon, so I can't do any more this morning (it is past 1130 AM here).
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Old 05-09-2011, 10:15 PM   #22
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OK I swapped the old OEM ECU into the car. It started up and ran, a little rough, probably due to the 460cc injectors. So nothing is broken. I will put the MS back in, but I'm not sure what's wrong with the tune yet.
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Old 05-09-2011, 11:04 PM   #23
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This is my most recent data log. I don't think I'm getting spark, but I can smell some unburned gas. Thoughts?
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File Type: msl 2011-05-09_21.56.25.msl (187.6 KB, 46 views)
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Old 05-10-2011, 05:17 AM   #24
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Let's test a few things. Pull out your plug wires and fit them with a set of test spark plugs. They don't have to be good, they can be your old spark plugs or anything. Once fitted on the wires, leave them on the valve cover, so that they ground through it.

Now go in Advanced -> Output test mode. Type in 12345 in that first box and hit Burn.

First test your fuel pump. Set it it on - you should hear the pump relay clicking on and the fuel pump should be audible in a quite garage.

Next, test your coils. Set the fuel pump to off, and then in the "test mode" drop down list, select "Coils". Then in "Coil output to test", select "CoilA". You should see the spark plugs on cylinders 1 and 4 sparking. Then on "CoilB", you should see the spark plugs on cylinders 2 and 3 sparking.

Try that and report back!
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Old 05-10-2011, 05:44 AM   #25
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ok, but it did start and run with the original computer a few hours ago!
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Old 05-10-2011, 06:51 AM   #26
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I did the tests. I did not hear the relay click on and off but I did hear a fairly loud whine that I assume is the fuel pump. The coils sparked appropriately. I only heard the whine when the fan turned off.

The fan cycles on and off every few minutes and that makes a lot of noise. That is new with the Megasquirt. I assume that is normal?
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Old 05-10-2011, 07:41 AM   #27
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If you try to start the car while fully pressing the throttle, does it try to catch? I'm trying to establish whether this is a too much fuel issue.
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Old 05-10-2011, 09:51 AM   #28
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That shuts off the gas doesn't it? I tried that the other day. I will try it again in a few minutes just to be sure, and unless I report otherwise, we can assume it didn't help.
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Old 05-10-2011, 11:08 AM   #29
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I was going to re-check that as I left for work this morning (where I am now) but I forgot that I left the plugs out on the engine! I did the work last night between 4:30 and 5:30 AM when I couldn't sleep.

Dimitris, if we can get this solved, I will owe you some serious Ouzo! I like Ouzo, hope you do too. Also Metaxa. But not Greek wines so much, what is served here at least is not so great compared to French and Italian wines. (Rambling: my brain is fried from lack of sleep.) Thanks for your help so far. I will retest that in about 8 hours.

This seems out of the ordinary for starting issues. I am assuming that I am at fault somehow as it should have worked. I appreciate your patience. I am confused though as when I tried to load the msq you sent, error messages of incompatibility occurred in two different ways. One sounded like mostly unit conversion problems, and I changed mine to celsius but that did not seem to correct it. Another was a problem with the "prolog" not being compatible. I was unable to copy and paste these reports though. I included the above data log to check whether your msq did in fact load.
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Old 05-10-2011, 11:57 AM   #30
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As weird as it may sound, I don't like ouzo at all, nor do I like any of the other greek drinks. I like beer, liqueurs and rum.

Anyway, have a try again with the plug wires in place. It may be necessary to give it a few cranks first without touching the throttle - this will let some fuel inside the cylinders to ignite. Then try with full throttle.
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Old 05-10-2011, 12:07 PM   #31
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Quote:
Originally Posted by Reverant View Post
As weird as it may sound, I don't like ouzo at all, nor do I like any of the other greek drinks. I like beer, liqueurs and rum.

Anyway, have a try again with the plug wires in place. It may be necessary to give it a few cranks first without touching the throttle - this will let some fuel inside the cylinders to ignite. Then try with full throttle.
That is what I did before to test this very thing. I will do it again deliberately to see but I am not hopeful....
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Old 05-10-2011, 10:34 PM   #32
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So it did not work. This is a datalog of the effort. I tried it off the datalog with just depressing the accelerator from the start. There was no sign that the engine started to catch.
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File Type: msl 2011-05-10_21.28.29.msl (17.0 KB, 48 views)

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Old 05-10-2011, 11:27 PM   #33
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You've probably already covered this, but your IGN output wires haven't been accidentally swapped have they? What happens when you swap IGN1 and IGN2?
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Old 05-11-2011, 12:17 AM   #34
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I have been going on the assumption that the MS wiring is set up correctly. Testing the coil output via Tuner Studio suggested that the spark output was correct. I could easily try switching spark plug wires.
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Old 05-11-2011, 03:59 AM   #35
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Do test that...even though you said that it was correct when you tested it through TunerStudio.
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Old 05-11-2011, 10:07 PM   #36
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Switching around plug wires did nothing. I have not considered working on the MS unit itself. I am beginning to wonder if that might be the problem? Could there be something wrong with the MS wiring? This would be a challenge if so!

At this point I am completely at a loss.

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Old 05-12-2011, 04:10 AM   #37
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Do you have access to a test light? The ones used to test if a wire in the car is live. You can use one of these to test if the injectors are getting their signals properly. Remove all of the injector connectors, and test each connector individually, using the output test mode.

InjA = Cylinder 1
InjB = Cylinder 3
InjC = CYlinder 4
InjD = Cylinder 2

Make sure to set the injection pulsewidth to a large number (ie 30ms), and number of injections to something also biggish, like 500.
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Old 05-12-2011, 08:36 AM   #38
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I don't have a test light, but I have a multimeter. I haven't used this kind of setting before, but I think it works that way on one of the settings.

How would you suggest I do it? Have the ignitition on? Not cranking though, right?
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Old 05-12-2011, 12:48 PM   #39
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You need a test light or something to that effect, not a multimeter. If you try to use a multimeter to measure the current, you will burn the injector drivers (transistors) inside the ECU. Connect the test light to both pins on the connector pins (on the harness obviously, not on the injector itself). Do this for each injector individually.

Then follow the same procedure as for the coils, only select Injectors instead of Coils in the test list, then select InjA for the first cylinder, InjB for cylinder 3, etc (as noted above).
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Old 05-12-2011, 10:05 PM   #40
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OK I got a test light. I made sure the test light worked. I used the procedure outlined above. There was no evidence of input to the injectors. I did not test the coils independantly. I must admit I am getting discouraged.
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