1990 Miata 1.6 5speed, stock engine, GT2560R [GT28] turbocharger with 8PSI wastegate. MegaSquirtPNP MM9093
I’m using TunerStudio registered to tune, and reviewing logs with MegaLogViewer.
MsNS-extra format 029q
EGO 02 Sensor:
Innovate LC1 default
MegaSquirtPNP MM9093 http://www.diyautotune.com/catalog/m...nny-p-154.html
MPX4250 map sensor http://www.diyautotune.com/catalog/m...sor-p-106.html
GM IAT sensor http://www.diyautotune.com/catalog/g...tor-p-116.html
440cc EV1 injectors http://www.diyautotune.com/catalog/d...hiz-p-274.html
Flyinmiata.com 1990-93 FM turbo kit http://flyinmiata.com/index.php?dept...umber=22-10100
3” exhaust http://flyinmiata.com/index.php?dept...umber=06-39200
DIYAutotune EBC electronic boost controller http://www.diyautotune.com/catalog/e...kit-p-285.html
Innovate MTX-L wideband & controller http://www.diyautotune.com/catalog/i...844-p-467.html
Walbro 190lph fuel pump direct fit http://www.diyautotune.com/catalog/1...ata-p-349.html
-The spark table map is the stock DIYPNP map I haven’t made any modifications to it without a knock sensor
-I tuned the fueling for
900rpm idle & 14.7:1 AFR once warmed up
12:1 AFR at WOT
15:1 AFR at cruise
-Spark settings [trigger angle] are stock from megasquirtpnp.com
-No knock settings/sensor
-TPS is stock 5 speed on/off switch
Finished the car a few days ago, so I haven’t done the cold start settings – but while warmed up, I changed a lot of things to get the car to run a lot better, however there are a LOT of things that still don’t work the way I’d like, or maybe they work as intended, and I’m just a big dumb. There are a number of issues that I can’t seem to work out, no matter what I do. The car pulls good all the way to 7000rpm, but has issues here and there or perhaps there’s something I haven’t configured right.
1. The AFR jitters or seems like it’s not steady, very prominent at idle. The sensor is grounded to the block
2. At almost sea level, I have 20 in hg of vacuum at idle, isn't this a little low?
3. Boost won’t go past 9 PSI, though It makes it around 4400rpm - the BCDuty (EBC) cycle goes to 75% as per settings under WOT, are my settings wrong?
4. From 150 seconds to 167 seconds, 2nd, 3rd, 4th gear WOT pulls to redline (& a little 5th) the AFR’s don’t stay consistent – going from 12.1 – 13.5 even though the boost is holds steady.
5. Why is the Gwarm value at 100 in the log viewer at all times despite the car already being warmed up
6. Under acceleration, the idleDC shows 18 – shouldn’t this be off under wot?
7. What are porta, portb, portc, and portd values in this log file?
8. During steady cruising, there seems to be random hiccups where the AFR will lean out for no reason. The only values I can see changing are Engine goes from 1 to 129, and the idleDC goes from 17 to 22.
9. I can’t get ANY voltage at the TPS, is this normal?
10. What should my barometric correction be set to? Is what I have currently correct?
-Any tips/advice/corrections/ideas/pointers on the following would be helpful if anyone could point me in the right direction, my goal is to
reach 12-13 PSI of boost, I can’t seem to get the EBC to do what I want. A GT28 should be able to go past 9psi, even on a 1.6.
-Get the AFR to stay consistent under WOT – it’s going from 12:1 to 13:1 when boost isn’t changing
-Fix the AFR disparity between the gauge, and the tunerstudio readout – the tunerstudio will read 14.0 while the gauge reads 13.4
Using the EBC from diyautotune – why isn’t my boost controller working? My wastegate spring is 8psi, what do I need to change to get it to open at 12?
-My boost KPA target table is full of 70’s still, but I have no vTPS – is this an issue? Do I need to have vTPS to use the EBC to begin with?
Aside from the above listed, and the cold start/enrichment things I haven’t gotten to – this is my first mspnp project and I’m not entirely sure that my MSQ is correct. If someone could go through the config, logviewer, or even take a look at the attached image, I’d love to know if there’s a different way to go about fixing what’s not working correctly, or what I did wrong to begin with.