natt111337

hi, im trying to get my car running on speeduino but im only getting spark on one coil, ive checked voltage on the ecu and both coils are getting 4.5 volts. one fires and one doesn't. car runs great on stock ecu so my coils aren't fried. what could be the issue ?

acedeuce802

iTrader: (1)

Post tune, log, and details on your setup.

natt111337

i just have the base tune all i did is change the engine size and injector size, it would be nice if you had a startup tune for a 1.8

acedeuce802

iTrader: (1)

I thought Speeduino's were only made for 1.6's?

der_vierte

Interested in this. I retired my speeduino after switching to ms3 mini.
Mine worked for a few days, then suddenly only fired on one channel, had to buy the ms3 to drive home, but I don't regret it.

natt111337

mine is from lowcostracingsolutions, im getting 4.5 v on both channels but only one coil is firing i dont understand why

SpartanSV

I'm waiting.

natt111337

stock 1.8 1997 miata has a S/C runs on stock ecu.

der_vierte

Turn off "new ignition mode" under spark settings, report back. I remember, that in earlier firmware it said "DO NOT turn this on, unless you know what you're doing".
Something like that

natt111337

still nothing

der_vierte

Board layout is 100% correct? I mean, in TS?

natt111337

yes i contacted the manufacturer about it and im using the board layout i was told to use , everything else works fine, fuel, rpm , tps , map , etc.

adam86

your dwell settings are off but the rest looks ok, I am running a speeduino UA4C on my 97 miata and its working good so far. This is what i use for dwell

natt111337

i sometimes get spark on the other coil but mostly it just gets warm.

Alexandre Rebelo

Do you figure out what was wrong?
I recently bought a RM racing eletronics PnP ecu for my bmw e34 and I only get 3 cylinders with spark, the other 3 have no spark, changed to stock ecu, everything works fine