Search found 31 matches

by MgFoster
Mon Jun 17, 2019 1:52 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

@russian, could we get support for Idle Up on an input with fan control?
My AC can stall my engine now if it kicks on at idle. Need to idle up when it comes on and turn on the fans.
by MgFoster
Thu May 30, 2019 7:48 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Get it fixed?
by MgFoster
Tue May 28, 2019 7:02 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

New firmware and starting from an older tune seems like as good a place to start as any.
by MgFoster
Tue May 28, 2019 6:24 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

That is very strange.... I think a log would be more helpful than a video in this case. Is it losing trigger sync? Looks almost like a rev limiter. Also, get some gas!!

Take a log and upload that as well as the tune.
by MgFoster
Tue May 28, 2019 3:14 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Ive run manual idle so far and its worked ok. Might venture into tuning PID since i'm about to hook up AC and I bet the idle will fall too low with manual idle. Are you planning on running turbo? Are you going to switch over to RusEfi permanently or are you planning on still running the stock ECU lo...
by MgFoster
Tue May 28, 2019 1:19 am
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

-Coolant temp multiplier looks right. -Cranking advance I would think should be closer to 10 deg. And then I would put the 500 rpm row in your ignition table closer to 10 deg in the 62-99 kpa rows. -I would run 8.0ms of cranking dwell. -2.0 ms of cranking pulse width seems very low for 265cc injecto...
by MgFoster
Mon May 27, 2019 3:03 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

I believe these are the dead times you want to run with stock 265cc injectors.
Courtesy of stefanst's tune, which is what I based my initial tune from.
Screen Shot 2019-05-27 at 11.01.47 AM.png
Screen Shot 2019-05-27 at 11.01.47 AM.png (72.13 KiB) Viewed 429 times
Attached is his tune if you want to try starting from there.
by MgFoster
Mon May 27, 2019 2:56 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

I have not touched accel enrichment and my throttle response is perfectly fine. Having a good VE table is critical. Can you post screenshots of your cranking settings, cranking coolant temp multiplier, ignition advance and VE tables? It should start just fine in 2-3 seconds.. -You want to get it up ...
by MgFoster
Mon May 27, 2019 2:28 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

That's some brave rusEfi usage :) Thank you for trusting this enough. Life is about the journey I suppose :lol: I've had paranoia about thermal shutdown. I'm glad to see that even in a plastic enclosure with relatively low air flow, that you are not experiencing thermal shutdown. I'm glad I was abl...
by MgFoster
Sun May 26, 2019 9:47 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

I have used multiple configs of tacho and dizzy out. Still can't seem to get it to work :(

Glad you found an issue! The engines are pretty durable, I doubt you broke anything, and my starter has taken LOADS of abuse with no signs of dying yet.

Does it run good now?
by MgFoster
Sun May 26, 2019 8:03 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Big Update: Been running for about 4 months since my last post. Car is running good. Starting has gotten better. Took the car on a mountain run in North Ga. Got a little warm, but otherwise fine. MountainRun.jpg Car overheated pretty bad.. Thermostat failure. Centering pin fell out :?: and didnt all...
by MgFoster
Sun May 26, 2019 4:41 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Yes I thought about that too, definitely could work. Give it a shot!
by MgFoster
Sun May 26, 2019 4:06 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Do you mind sharing how your board is configured for the tach? What channel you go in and what jumpers you have installed? I question if Im even using the right pin from the nb2 harness.

Thanks,
by MgFoster
Sun May 26, 2019 2:49 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Question for you Gwendal, is your tachometer working?
by MgFoster
Sun May 26, 2019 2:35 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Gwendal, thats awesome! Notes on checking timing: - Make sure you're on the 10 deg BTDC mark and not 10 deg after. -It shouldn't run THAT rough on 10* fixed timing. I suggest making sure there is no timing corrections on, ie any of these correction tables. Screen Shot 2019-05-26 at 10.18.14 AM.png M...
by MgFoster
Sat May 25, 2019 4:02 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

As far as the crank and cam inputs, I dont remember exactly, and my ecu is tucked up under the dash again, but i did find this pic of how we wired in the crank signal. I dont remember what happened to the cam signal. IMG_2755.JPG As far as getting your trigger right and what not, heres my settings: ...
by MgFoster
Fri May 24, 2019 8:01 pm
Forum: Your car & your engine
Topic: 2004 Mazda MX5 1.8 VVT #50
Replies: 163
Views: 4206

Re: 2004 Mazda MX5 1.8 VVT #50

Gwendal, Congrats on getting it running. I've gone through many of the same issues and it is so rewarding when it finally works! I wish I would have been more active over the last couple months and I probably would have been able to help you on a couple of your previous issues. Heres my thread from ...
by MgFoster
Tue Feb 05, 2019 8:01 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Little bit of an update. Ive been driving it for 5 or so days with boost. I was decently satisfied with how it was running, it just seemed slow. Heres a couple things to note: Cranking: The charge angle setup does not work at all (probably because my trigger wheel doesn't have a high enough resoluti...
by MgFoster
Mon Jan 28, 2019 3:54 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Great news, the offset value was the only thing wrong. I think it was at 110, possibly from stefan's tune, but at 72 (much closer to russians) it worked perfect. Im gonna play with the PID values now and the target table to see if i can make it even better.
by MgFoster
Sat Jan 26, 2019 3:37 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Thanks so much!
I will try all that later today and then post an update.
by MgFoster
Sat Jan 26, 2019 2:00 am
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

@, Car is running good now, and i've compared your settings on engine type 47. I'm a little confused what the VVT Offset value does?

Edit: Good is a generous term. VVT still not working.
by MgFoster
Tue Jan 22, 2019 7:43 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Bit of an update. I will be troubleshooting the everything on the board as far as TPS signal goes sometime this week, but I'm not super worried about it currently. I finished the all my maintenance and of course jumped the gun on turbo install. The car is running. image2 (1).jpeg image3 (1).jpeg Exh...
by MgFoster
Tue Jan 01, 2019 11:02 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Sorry for the delay. I got a little distracted and decided to fix my oil leaks...

F16EF40B-8875-42A2-A76E-6C2C22F46670.jpeg
F16EF40B-8875-42A2-A76E-6C2C22F46670.jpeg (3.27 MiB) Viewed 970 times
87031044-1225-45B2-A1CE-16525FEB23B4.jpeg
87031044-1225-45B2-A1CE-16525FEB23B4.jpeg (3.7 MiB) Viewed 970 times
Tomorrow I will button the rest of this up and start troubleshooting rusefi again.
by MgFoster
Sun Dec 30, 2018 5:15 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

kb1gtt , I have 5V steadily between the ground and power wire at the tps connector 9C4D0115-3C7D-4300-ADAD-1E1DAE1AB45C.jpeg I have 4.8 ish V between the power wire and the signal wire. Does that sound right? 2C63E190-09E0-4685-93DB-35F5FDF6CE64.jpeg Here’s a pic of the back of the board. I went ah...
by MgFoster
Sun Dec 30, 2018 7:03 am
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Tonight was very productive. I have a MAP sensor, IAT, CLT, IAC Valve, fans working, Alternator exciter working, and TPS sort of working. I guess I'll spoil you guys with the good videos first.... https://www.youtube.com/watch?v=bYK3fkSYcsE It runs awesome! I still need to hook up the wide-band :sho...
by MgFoster
Sun Dec 30, 2018 6:29 am
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

I've been noticing that it doesn't stay powered through that cable every time. Can't quite put my finger on what causes it to, but I *think* it might be only after attempting to start, or starting.
by MgFoster
Sat Dec 29, 2018 5:49 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata - Engine #46

Wiki editing is something I would love to contribute to at some point. I think documentation is what’s preventing more people to try rusEfi.

@ do you have any insight to why the board would stay powered through the programming cable?
by MgFoster
Fri Dec 28, 2018 3:36 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata

She does indeed run! Encouraging to say the least. Not without our fair share of issues though. We could not get the Crank signal to work through the dedicated trigger hardware. It was as if it was being filtered way too aggressively, even with the capacitors completely removed. Instead, we used ana...
by MgFoster
Thu Dec 27, 2018 8:19 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata

As for alternator control, like russian has noted, I think you'll need an additional circuit for that. We have developed a small board which can be added to the bread board area of Frankenso. Without this you run the risk of running your battery down. So keep the head lights off, and keep the elect...
by MgFoster
Thu Dec 27, 2018 8:13 pm
Forum: Your car & your engine
Topic: 2001 Mazda Miata - Engine #46
Replies: 54
Views: 2617

Re: 2001 Mazda Miata

Hello and welcome! Have you seen https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_2003 https://rusefi.com/wiki/index.php?title=Vehicle:Mazda_Miata_2001 https://github.com/rusefi/rusefi/blob/master/firmware/config/engines/mazda_miata_vvt.cpp - you can use rusEfi console to get same exact ...