Third week of MS troubleshooting
#3
Stock 1994 running a parallel MS1 using the 9495 PNP Base map.
I have NOT set my timing as im having loads of trouble with it. When i keep the car alive at 1k rpm, my timing light says im right at TDC (Not near the factory 10 bracket/plate) . As i adjust the timing on the MS it seems to be working the other way around, the closer it gets to the right setting (10) the worse the engine is running. I really hope i can get this thing sorted out, my turbo kit has been sitting patiently for about a month now.
I have NOT set my timing as im having loads of trouble with it. When i keep the car alive at 1k rpm, my timing light says im right at TDC (Not near the factory 10 bracket/plate) . As i adjust the timing on the MS it seems to be working the other way around, the closer it gets to the right setting (10) the worse the engine is running. I really hope i can get this thing sorted out, my turbo kit has been sitting patiently for about a month now.
#4
Calibrate your TPS. I'd tell you how to do it, but it's probably different since I have MS2 not MS1. But do this.
You have to get base timing correct. I'm no expert with MS1 though. I know you can turn the CAS to adjust it, so do that to get it to 10* BTDC with the timing light sensor clamped on cylinder 1. (the front most one).
And post your MSQ if you can figure out how. Don't tell me what MSQ your running, and don't link me to where you got it. I already know. Actually POST the one you have on your megasquirt. This way people can go through it and make sure everything looks right. I downloaded the **** to read MS1 just to help people like you.
Are ALL the guages in megatune working? Name the ones that are/are not.
And don't answer half my questions. Don't make me ask 3 more times, etc.
You have to get base timing correct. I'm no expert with MS1 though. I know you can turn the CAS to adjust it, so do that to get it to 10* BTDC with the timing light sensor clamped on cylinder 1. (the front most one).
And post your MSQ if you can figure out how. Don't tell me what MSQ your running, and don't link me to where you got it. I already know. Actually POST the one you have on your megasquirt. This way people can go through it and make sure everything looks right. I downloaded the **** to read MS1 just to help people like you.
Are ALL the guages in megatune working? Name the ones that are/are not.
And don't answer half my questions. Don't make me ask 3 more times, etc.
#5
TPS has been calibrated and base timing has been set, the car now idles on its own!
Every gauge in megatune is working (RPM, Coolant, pulse, duty cycle, MAP, Air temp, AFR and spark advance) . The AFR gauge is working and reading the same with my gauge but it always highlighted in red, i think this is because im running to rich.
Including a log file of the car idling and the MSQ straight from the MS.
Thank you Pat for all the help!
Every gauge in megatune is working (RPM, Coolant, pulse, duty cycle, MAP, Air temp, AFR and spark advance) . The AFR gauge is working and reading the same with my gauge but it always highlighted in red, i think this is because im running to rich.
Including a log file of the car idling and the MSQ straight from the MS.
Thank you Pat for all the help!
#10
Yeah don't touch the fuel map yet. If it's running "fine" then odds are it is, and the gauge i megatune is just lying. Like I said it wouldn't run at 7:1. You have go into MS configurator and tell it what type of wideband you have. Have you done this? And LC-1's are finiky. Did you wire it up EXACTLY as the directions specified, or did you do what you thought would work? Gotta follow them to the "T" or it won't work right.
Drive it and make a nice long log and post it up.
Drive it and make a nice long log and post it up.
#12
What reads rich on a stock ecu? The gauge in megatune or your gauge for your wideband?
Also, you can go into megatune and at the top click "basic settings">"engine constants 1" and look at your "req fuel" try making that number smaller. IE-if it's 12, make it 11 and see what the wideband reads.
Also, you can go into megatune and at the top click "basic settings">"engine constants 1" and look at your "req fuel" try making that number smaller. IE-if it's 12, make it 11 and see what the wideband reads.
#13
What reads rich on a stock ecu? The gauge in megatune or your gauge for your wideband?
Also, you can go into megatune and at the top click "basic settings">"engine constants 1" and look at your "req fuel" try making that number smaller. IE-if it's 12, make it 11 and see what the wideband reads.
Also, you can go into megatune and at the top click "basic settings">"engine constants 1" and look at your "req fuel" try making that number smaller. IE-if it's 12, make it 11 and see what the wideband reads.
#14
I'm gonna guess you need to recalibrate your wideband. It would be the next step if I were you. Try letting the car sit overnight and then recalibrate it in the morning before cranking the engine. Most agree letting is sit long enough will make sure it's "free air" enough in the exhaust pipe. Or remove the sensor and then do it.
If you're lucky some of the MS1 people will chime in and help. There may be some simple common thing you need to do that specific to MS1 I don't know of.
If you're lucky some of the MS1 people will chime in and help. There may be some simple common thing you need to do that specific to MS1 I don't know of.
#19
FWIW, Make sure your ground is on the back of the head with the ecu ground. That screwed me up at first. Then when I got that fixed.
My fuel was crazy rich, even after I straightened the WBO2 issue out. I reflashed my firmware and everything turned out fine.
I did have to lean my table out on Idle, and way richen the cruise. The map isn't perfect, but a very good start.
Good luck.
My fuel was crazy rich, even after I straightened the WBO2 issue out. I reflashed my firmware and everything turned out fine.
I did have to lean my table out on Idle, and way richen the cruise. The map isn't perfect, but a very good start.
Good luck.
#20
FWIW, Make sure your ground is on the back of the head with the ecu ground. That screwed me up at first. Then when I got that fixed.
My fuel was crazy rich, even after I straightened the WBO2 issue out. I reflashed my firmware and everything turned out fine.
I did have to lean my table out on Idle, and way richen the cruise. The map isn't perfect, but a very good start.
Good luck.
My fuel was crazy rich, even after I straightened the WBO2 issue out. I reflashed my firmware and everything turned out fine.
I did have to lean my table out on Idle, and way richen the cruise. The map isn't perfect, but a very good start.
Good luck.