billr wrote:I have to be blunt... if the MS is bad and gets repaired it will not go bad right away if your install is correct. Many thousands of MS users will attest to that. Although it is possible your MS was bad as-delivered new, my perception is that most problems are caused by a faulty install; and they don't always cause fatal damage to the MS, so maybe you will get lucky even if it is the install causing the problem. If I am annoying you (or anyone else), then please advise and I will become a silent observer of this thread. I don't want to add to anyone's frustration, but have some ideas of how you might get back on track.
You can be as blunt as you want. This isnt the first car i ever wired nor the last. This is the first computer ive ever had mind boggling situations with. My car has an electromotive tec3r that i personally installed. I know the in's & out's of that like the back of my hand. There are as we speak 11 standalone cars running that i personally wired myself. 4 were from scratch. 2 holding very very reputable numbers and are cars that "everyone knows". This MS has never seen the road, No other automobile, was bought brand new from DIYAutotune. Since the very FIRST day the MS was installed and the car was turned "on" i have not gained any ground with it. It still suffers from the EXACT same problems since the first time the key was turned "on". Ive tore the wiring harness down multiple times, swapped injectors, swapped distributors, swppped distributor wheels, got new alternatorS. new plug wires, plugs, pretty much everything trying to see a little change in something. Wiring the injectors is the easy part of the whole system exp. with a MS3 due to the resistor fact. The WIRES are labeled and i hope i know were #1 cyl is. Think about this for a second. You verify the car gets spark, verify the injectors are pulsing, by either listening to the injectors when cranking, pulling the distributor out and spinning it by hand, or using the "test mode" function in the MS. Make sure the fuel pump works by the ecu. This is all before you want to "start" the car. Now your set to start it and the car dosnt fire. Probably think it needs more fuel possibly, timing situation or some other settings need alterd. SO you spend months changing settings, using different maps that you get from people with running vehicles. Nothing changes. Time to test/ change parts. Change d*** near every part and still nothing changes. Go back to the drawing board. I never would have thought to put any number for the deadtime in the MS over 4. Why? because theres low Z injectors. Getting down to tons of confusion as to why nothing is happening, im going to dump tons of fuel, and why not up the deadtime to 5. As soon as i plugged 5 in it hit, plugged 7 in and fired right up. Thats were i stand.
The injectors are wired
Now, if there is a way i can test the board with a meter beacuse i cant get my hands on a scope and someone knows what the readings are im supposed to get to verify the pwm circuit is faulty, that would be nice. I really dont want to send the ecu out because i can do whatever here as anyone can do where ever its sent to soldering socketing wise. I just have to figure out what would be bad. This is not my car, its my brothers. Im trying to help him out with it.