Greetings,

I've got a 1990 1.6 eunos with a Rev built basic ms3 that I cant get to fire/start/anything but crank

idles nicely with the stock ecu plugged in so I have fuel/spark

modifications
-255 walbro
-stock injectors
-modified greddy kit
-bmw vtps
-gm iat

Attached I included the log of cranking and the tune for it as well.


hoping someone might be able to catch something obvious as to why I cant get it to start.

 

Must be something small in the tune that were not catching.

I see I have a 4g63 sync loss maybe, not sure if that would cause this.

Not enough spark?

 

Have you tried a composite log to make sure all the sensors are outputting properly?

 

Oops I guess I posted a normal log, will post a composite one In a bit.

Also my timing gun doesn't go off, but I've physically checked and I have spark.

 

Tried test mode for spark and fuel ?

 

yeah. the plugs weren't doing anything for whatever reason they would only spark once when I would end the test



update\\\\

got a new battery as my previous one was questionable and dying

got around to doing a composite log and etc.

still unsure of what im doing wrong

 

Bump, open to suggestions and reviews

 

Did I delete the maf improperly? Is that possible?

 

Don't you have to pull some 10a fuse on early Miatas for it to work with Megasquirt?

 

depends how it was built.

looks like it's syncing just fine. is the fuel pump running?

 

instructions said to remove the "st sign fuse" or you might damage it

running during cranking or running at all?

primes when I turn the key and can run when i ask it to in test mode.

had a FPR hooked up to see if that change anything but it didn't.

 

400+ RPM is to high when cranking, but from the later csv the resets look to have disappeared. could you post a new msl.

I'm not sure about the rev built basic ms3, but the regular non ms3x should not be using the ms3x options in inj and ign outputs. Maybe you should check this with rev.

 

haven't asked rev about the ms3x options, a basic ms3 shouldn't have those?


finally have more time to diagnose this.

attached are some logs and etc I took tonight.

 

no, it's not.



looking at that raw log, im going to say it's your tune. I'd have to look at it at home.

 

Appreciate that.

Should be around to punctually respond to your suggestion.

 

Map was really screwed up. I'm not exactly sure how Reverant has built it. But looking at your log is appears you aren't syncing.

This is probably due to cam in going in to js10 and not the MS3x. That's assuming these is even a MS3x.

Otherwise the fuel settings were really messed up and I corrected those.

See if the attached will work.


Take another log of cranking and also a composite log of it. Click the Diagnostics tab in TS and click the save to file check-box and then log cranking for like 15-20sec.

attach both log files.

 

The cam input is indeed on JS10, and not on MS3x CAM in.

 

hopefully there is enough cranking in that log.

looks like I should switch the cam back to js10?

 

didn't you keep the msq it came with?

 

I did. It would be one of the msq's I posted within the thread.

Anything I might be missing here to cause a no start?