Megasquirt Car Starting Problems
#1
Megasquirt Car Starting Problems
Ok, so a few days ago I went about properly securing my megasquirt since it's just been taped to my stock ECU for a while. So I did that, and at the same time I cleaned a bit of surface rust on the floor in the car with POR15 so I had to let the paint dry for a day.
I went to start the car yesterday, and it fired up on like 2... maybe 3 cyl. It was hard to tell but it was definatley not running on 4 and ran like ****. The car would only stay alive with almost full throttle. I let the throttle off and it died.
Now to the frustrating part. I try to start it again thinking maybe the plugs were a bit wet and it needed to be cleared out. It turns over a few times... sounding pretty harsh and turning over slow. Then all of a sudden nothing. NADA. The starter is still trying to turn the car over but all I get is a "CLUNK" once... and the engine is not turning. I can hear the starter though so I don't know what's up.
I didn't make any changes to the Megasquirt, jsut unplugged it and plugged it back in. I'm super frustrated right now. I had to take ******* public transit to work. I DON'T take public transit. FML.
So what do you homos suggest is wrong?
I went to start the car yesterday, and it fired up on like 2... maybe 3 cyl. It was hard to tell but it was definatley not running on 4 and ran like ****. The car would only stay alive with almost full throttle. I let the throttle off and it died.
Now to the frustrating part. I try to start it again thinking maybe the plugs were a bit wet and it needed to be cleared out. It turns over a few times... sounding pretty harsh and turning over slow. Then all of a sudden nothing. NADA. The starter is still trying to turn the car over but all I get is a "CLUNK" once... and the engine is not turning. I can hear the starter though so I don't know what's up.
I didn't make any changes to the Megasquirt, jsut unplugged it and plugged it back in. I'm super frustrated right now. I had to take ******* public transit to work. I DON'T take public transit. FML.
So what do you homos suggest is wrong?
#7
And this is not instilling confidence in Megasquirt for me right now. Since I have a brand new engine with Ocean being built right now the last thing I want is a faulty ECU damaging it.
#8
Take a spark plug out to see if fuel is puddling in the cylinder, that could be why it doesn't want to turn over. It may be that the 2 cylinders that weren't firing got too much fuel in them.
edit: yes, that is exactly what happened to me. I tried everything to get MS to work again, and the only solution that worked for me was to put the stock ECU back in.
edit: yes, that is exactly what happened to me. I tried everything to get MS to work again, and the only solution that worked for me was to put the stock ECU back in.
#14
Word for word as in your engine "CLUNK"'d too? Did the engine end up being OK? I'm just worried that somthing similar happened to me that happened to Wayne_Curr not long ago. He ended up hydrolocking his motor from a faulty MS.
And this is not instilling confidence in Megasquirt for me right now. Since I have a brand new engine with Ocean being built right now the last thing I want is a faulty ECU damaging it.
And this is not instilling confidence in Megasquirt for me right now. Since I have a brand new engine with Ocean being built right now the last thing I want is a faulty ECU damaging it.
Its too hard to speculate on what went wrong without more troubleshooting. Unfortunately i'm working til 10:30 every night til my days off sunday/monday.
I thought you had another car...?
#18
Well I pulled the coils, plugs and unplugged the injectors and turned the car over.
You should have SEEN the amount of fuel that came shooting out of cyl 2 and 3. It covered my engine bay in fuel and half my driveway.
I'm letting it air out overnight. And will pick up new plugs tommorow.
I checked all the connections on the patch harness and they are all fine. No touching of one to another from twisting it.
So the only logical conclusion is a problem with the MS or two of the 4 of my coils happened to **** the bed at exactly the same time I did the re-location of the MS. I am trying to locate a local Stim and if I can't find one I'll head down to Bellingham and throw it on wayne_currs. Since 2 and 3 fire together (I think?) I'm guessing my spark output is messed up somehow.
You should have SEEN the amount of fuel that came shooting out of cyl 2 and 3. It covered my engine bay in fuel and half my driveway.
I'm letting it air out overnight. And will pick up new plugs tommorow.
I checked all the connections on the patch harness and they are all fine. No touching of one to another from twisting it.
So the only logical conclusion is a problem with the MS or two of the 4 of my coils happened to **** the bed at exactly the same time I did the re-location of the MS. I am trying to locate a local Stim and if I can't find one I'll head down to Bellingham and throw it on wayne_currs. Since 2 and 3 fire together (I think?) I'm guessing my spark output is messed up somehow.
#19
Wow déjà vu. I'm not sure what coils you have, but if you have stock, using a multimeter you can check the resistance between the coil towers on the 2 coils. Resistance between the terminals should be 8.7k-12.9k ohms at 20 degrees C. I don't think that's your problem though.
I bet something is up with your spark output on MS. I wish I could help you but I possibly have the same problem myself. I have a thread about it somewhere, but I'm too tired to link.
I bet something is up with your spark output on MS. I wish I could help you but I possibly have the same problem myself. I have a thread about it somewhere, but I'm too tired to link.