Braineack

iTrader: (62)

youll adjust the accel-pump settings to fix the "delay"

Oochi

I messed with them to no avail hah. I don't know what any of it means, or any basics of tuning in general. Do you have a good reference I could read on specifics?

Oochi

I got it to delay less but it still shoots lean when I tap the throttle. It also does this when I keep my foot barely on the throttle, think it could be from the tps? I have a wells to throw in it but haven't yet

Braineack

iTrader: (62)

For one think I know my TPS threshold for the accel-pump is really high, i have a weird grounding issue on my car that's keeping my TPS noisy. On that window while idling smoothly, you should watch the max the tpsdot peaks to, then adjust the threshold just above that...or you can set it to 0 and tune the curve in a way that the noise spikes on your tpsdot are just in the 0% range.

wait don't you even have a vtps yet? if not you need to change it to mapdot enrichments. You have a lot of settings that relay on the tps. you need to turn the blend 0% to zero and under accel enrich settings you need to turn off EAE. you also need to get rid of any tps threshold for closed loop idle...


the video you posted looks to show that you need more fuel in your fuel map. the best thing to do is post datalogs, then i can see what's actually going on.

Oochi

Hello again, my car had a falling out for a while. put my stock ecu back in because I was scared to drive it while it was acting weird and ordered a wells tps. My idler pulley busted a couple weeks ago and I ordered a new one and a new timing belt tensioner. I installed those without removing the timing belt, I ghetto'd up the wells tps according to the diagrams and how-to's on the site.

Now I have my car back together, put the megasquirt back in, calibrated the tps which seems to be working (numbers sound a little high though: 156 0% and 900 100%) and now it wont start. It cranks a couple of times and then it just stops. Ill attach a log of what it's doing. Hopefully it's something I just overlooked. Thanks all

Oochi

Any ideas?

Oochi

Well I managed to get it started. Now it idles all crazy. It tries to idle around 1800rpm iirc and it loses fuel and drops down to 1k and repeat over and over. I'll attach the log, keep in mind I'm not familiar with tunerstudio just yet.

Oochi

I really need some insight here. Im about to set the thing on fire and go back to stock ecu.

Here's the low-down:

• Using Brain's basemap (provided in this thread) edited for my setup, I got a guy to come help tune who said he was experienced with MS, the car was running ok, but misfired very often. The idle would go up and down with overrun fuel cut on.
  
• I registered my tuner studio and hoped that autotune would help with the issue and it didnt.
  
• I started to think maybe the timing was off somehow, so like typical me, I set it the old fashion way moving the CAS not even thinking about setting it in MS like an idiot and it made it 100x worse. Misfiring like crazy. It was basically running on pure misfires.
  
• I did some reading and realized I never set the timing in tunerstudio, so today I did that. Used the fixed angle to 10' and adjusted the 'Trigger angle/offset' until it hit 10' on the crank with a timing light. It's value started at -16 and to get to 10', i had to adjust to -30. I switched it back to use the spark table and the idle shot up again to like 2300, turned the idle adjustment screw down all the way and it still sat at 2K. Then I get a message on tunerstudio that it cant be any number above or below -20/+20. Still doing a lot of misfiring, even when idling. Even more when I tap gas.
  
• I want to think it's about the timing, but i don't know what to do from here. I'm tired of messing with the thing. Haven't been able to drive the car all summer because I don't know what to do.

Im attaching everything and anything that could possible help. .msq, datalog of idle and gas taping, pictures of my settings.

stefanst

iTrader: (1)

Something's wrong there methinks. Maybe +/- 10* but 30* seems a HELL of a lot to me. Make sure you check properly how to read the timing mark on your engine. There's a howto somewhere in the stickies IIRC.

soviet

iTrader: (10)

sounds like your timing belt is off. I don't think you can get 30* from the CAS adjustment.

Oochi

I just aligned the dot with the 10 using a timing light. 30 IS alot lol.

I did just replace the tensioner and idler pulley though I'm 99% sure I set the belt up right and aligned. I guess I'll check it again though. Thanks for the responses.

soviet

iTrader: (10)

your crank pulley could be all fucked up, too, and not actually at 10*

Oochi

How would that happen? It looks like my intake cam is a tooth off

Oochi

Reset my timing belt and it still runs like crap and 2k idle. Timing is a tad better at -19 trigger angle at 10* but still high. I'm stumped.

soviet

iTrader: (10)

like this - What a slipped crank pulley looks like - MX-5 Miata Forum

Oochi

I might just try to return it to stock and make sure its the ecu. Only thing is I wired in a wells tps so what would happen if I ran that tps on the stock ecu? Could I just unplug it?

Oochi

My crank gear is tdc when the pulley timing mark is on the 'T' line so I don't believe it's slipped

Oochi

Do my ignition settings look right?