Megasquirt wont communicate

Discussions relating to Turbochargers, Superchargers, Induction, Engine Mods, Exhaust Mods, and other items specifically to make your MX5 or Roadster put out more power.

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WideOpenThrottle
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Megasquirt wont communicate

Post by WideOpenThrottle » Wed Sep 12, 2012 4:57 pm

Somethings amiss...cant get communication on two of our lap-tops or our home PC :?

Unable to download usb cable drive from the supplied cd or the internet on the two lap-tops.

Our home pc downloaded a driver for the usb but still wont communicate even tho it looks like it is ok!

I'll admit to being fairly un-geeklike but this is driving me to distraction!

Read somewhere i might have to get a better quality usb cable so will hunt one down.
1989 NA 1650
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Donovan
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Post by Donovan » Thu Sep 13, 2012 8:53 am

Are you in Auckland, and if so, whereabouts?

WideOpenThrottle
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Post by WideOpenThrottle » Thu Sep 13, 2012 8:54 am

MuriwaI Beach
1989 NA 1650
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1990 Landcruiser
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WideOpenThrottle
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Post by WideOpenThrottle » Thu Sep 13, 2012 6:46 pm

Here is the pic of the cable- needs to work on windows xp
Attachments
USB cable 001.JPG
1989 NA 1650
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Post by siren676 » Thu Sep 13, 2012 7:56 pm

I got mine from work (DSE) so i could tune the link in my starlet, im running xp and it worked with the included driver cd
1990 NA6C MX5

WideOpenThrottle
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Post by WideOpenThrottle » Thu Sep 13, 2012 8:37 pm

might come to that yet
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last_resort14
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Post by last_resort14 » Thu Sep 13, 2012 11:05 pm

Ive had the same issue in the past connecting to MS.
My Issue was that the USB adaptor had a default setting of port 9.
The MS can only recognise ports 1 to 4.
I had to change the USB Adaptors setting in the device manager to port 1 to get it to connect.

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Post by WideOpenThrottle » Fri Sep 14, 2012 8:13 am

Hi last_resort

Just had an email from DiyAutotune and they said something similar.

Also got another driver cd from Jared [NZ agent] and now the laptop with Windows XP has accepted the install so will be giving it a go on the car soon to see if i can make some headway.

So it does appear at this stage alot of my issues were with the original usb driver cd being semi-kaput!!
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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WideOpenThrottle
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Post by WideOpenThrottle » Sat Sep 15, 2012 3:49 pm

Thanks to to Donovan & his unselfishness in helping me out i now have communication! :D :D
Now to ensure all settings are researched entered before a test start-up.

Cheers Donovan.
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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WideOpenThrottle
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Update

Post by WideOpenThrottle » Wed Sep 26, 2012 5:41 pm

Latest email on tune progress.....

Hi Gary

Just finished tuning the car on the stock boost.
Started out at 140hp at the wheels, which wasn't too bad, But by the time I'd finished managed to squeeze 171hp ATW
The intercooler system is very efficient, and with the lowered compression, was able to eventually bring it to 20' timing on full load with no hint of detonation.
Could probably squeeze another 10hp or so if I wanted to tune it on the ragged edge, but prefer it to be nice and safe.

Just come back from a drive around the block, and it's very impressive, especially in 3rd gear.
Would absolute hose a R34 Turbo skyline that I tuned last week.

Power peaks at 5750rpm then starts to slowly taper off, which I suspect is either the intercooler piping, or most likely just the exhaust housing nearing it's maximum flow.
170hp ATW equates to pretty much 200hp at the flywheel, which is about what we expected.

Ordered a couple of the boost taps, I plan on using one on my Turbo V6 MR2, and good to have a spare in stock, if you decide to keep it at 9 psi. but if you want to crank it up, then they should arrive tomorrow, so should be good for Saturday regardless,

Drives nice and smooth, starts up easily when cold and hot, so we should be able to do the bulk of the economy tuning is less than an hour on Saturday.

cheers
Jared
Megasquirt Engine Management Systems
Tauranga
1989 NA 1650
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Angreal
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Post by Angreal » Wed Sep 26, 2012 6:51 pm

I guess self tuning is somewhat difficult to do? Since I plan to hook my new ecu up when the sc goes in , do you self tune it so its drivable then get it dyno tuned afterwards so its running a lot more efficient? By self tune I mean get some maps which do the job but not very well?

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Post by Snapfrozen » Wed Sep 26, 2012 7:37 pm

Angreal wrote:I guess self tuning is somewhat difficult to do? Since I plan to hook my new ecu up when the sc goes in , do you self tune it so its drivable then get it dyno tuned afterwards so its running a lot more efficient? By self tune I mean get some maps which do the job but not very well?
I'd recommend get the ECU in and fiddle with it before you SC the car. If you have a problem, you've only got 1 thing you've changed at a time. Tuning them isnt too bad if you understand what the tables all look like and what they mean, otherwise maybe leave it to the pros :P :wink:

WideOpenThrottle
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Post by WideOpenThrottle » Wed Sep 26, 2012 7:58 pm

Self tuning for the novice is risky IMHO so to be safe get it done professionally...its worth every penny!
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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WideOpenThrottle
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Post by WideOpenThrottle » Wed Sep 26, 2012 8:09 pm

Latest email.....cant seem to upload read-out :cry:


Hi Gary

Here's the Dyno power/torque readout, also the Air/fuel Trace,
They are in JPEG format so will open up fine in any photo viewer
You can see at 3600 rpm it's making the power of a stock MX5 at 6500, so is very torquey for such a small motor.

Unless you plan on racing the thing permanently I wouldn't go up in size in turbo, as while it would make alot more topend, would feel slower on the road, It gets 7psi at only 2600 rpm, so feels more like a supercharged engine than a turbocharged. Which I like alot.

Regards
Jared
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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WideOpenThrottle
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Post by WideOpenThrottle » Wed Sep 26, 2012 8:31 pm

Try again....na! might figure it out one day :cry:
Last edited by WideOpenThrottle on Thu Sep 27, 2012 1:46 pm, edited 2 times in total.
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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Hiking shoes

WideOpenThrottle
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Post by WideOpenThrottle » Wed Sep 26, 2012 9:47 pm

This time?
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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Hiking shoes

WideOpenThrottle
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Post by WideOpenThrottle » Mon Oct 01, 2012 2:41 pm

Picked up my car and dove back to AK yesterday.All good at the top of the Kaimais but found on the way home it was 'missing' a bit on vacumm [cruise no-load] so Jared sent me through a revised map to try. Power feels similar to my old set-up,definately more torquey & less laggy so all in all more road friendly.Just wish i knew the HP of my old set-up now.

Hi Gary
It's exactly the same tune just with a bit more fuel in the cruise part of the mapping
So just power up the ECU, with the laptop connected
then go to
FILE
OPEN
and click on the tune that I sent, it will load up
Hit BURN TO ECU and you'll be done
Probably a good idea to save it somewhere safe too

Amazing the difference that height can make to a tune, had almost exactly the same thing with a GTR skyline I did a few months back, we had it running perfect here, and the guy used it everyday, so wanted the very best in fuel economy, so we ran it real lean at light load, worked fine, but when he got to auckland, it had just a small surge (overly lean mixture) and would hunt a bit, gave it another 5% fuel and it's been fine ever since.

Don't worry about it hurting the engine the way it is, the mixtures are nice and safe under boost, and overly lean at very light load won't damage the engine.

Hows this for the efficiency of your B6T engine
Ran an old 2L SOHC Turbo Starion up on the dyno yesterday, had a similar sized turbo to yours, maybe a bit bigger,
Even though it had all the goodies, big exhaust, intercooler, etc, we couldn't get more power than 160 at the wheels, even on 10psi
Yet your little 1600 managed to hit 170 on less boost, the starion experienced mild detonation on 18' timing, yet yours had 22' on full load and not even a hint.
Guess size isn't everything, wasn't really that quick on the road either, the mx5 would have eaten it for lunch

Cheers
Jared
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes

WideOpenThrottle
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Post by WideOpenThrottle » Tue Oct 02, 2012 10:45 am

New map loaded,tested & passed! :D .

Talk about a roller coaster ride this car modding lark!

Time for cert!! and the next hurdles [hopefully none - but whats the chance eh!].
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
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Angreal
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Post by Angreal » Sun Nov 11, 2012 11:04 am

Well I'm now in the same boat. My laptop connects intermittently and disconnects randomly after a short period of time. I'm hoping it's the dodgy wire or something...

WideOpenThrottle
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Post by WideOpenThrottle » Sun Nov 11, 2012 11:35 am

I ended up getting a usb cable from Jaycar after Donovans help.
1989 NA 1650
1998 NB 1800
2005 NC 2000
1990 Landcruiser
Surfboard
Push-bike
Hiking shoes

Angreal
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Post by Angreal » Sun Nov 11, 2012 12:15 pm

Excellen. I'll pay them a visit

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