no rpm
 

ok i've searched but i dont seemed to have found an answer.
I have a ms1 v2.2 fuel only right now on a 87 6 port turbo swap
the ms seems to be working right all the gauges are reading but no rpms (cranking or running). I have the tach wire tied to the single black wire on the leading coil w/ sheilded wire grounded in one place. i hope someone can help me pls


any and all help is greatful thx again

Is your 'Squirt configured to take it's tach input from the optical/coil pick up?

dont know where at under settings is that sorry for the stupid moment just been beating head on wall for day about this :wallbash: thx in advance

It's a hardware configuration. You will find the steps in the assembly instructions at http://www.megamanual.com

The megasquirt in question is the same one I had running in my fc a few years ago. Hardware wise, its fine, unless something got damaged when he wired it. But I think his problem lies in the stock ecu he is using for ignition. I talked to him earlier, and he unplugged the stock IAT and CLT senders from the stock ecu and just had them hooked up to the megasquirt.

The ignition should still fire though.

Does the 'Squirt get an RPM signal on the Stim?

Have you also tried connecting to the negative side of the leading coil?

the ing does still fire i don't know about the signal on the stim and if your talking about the green wire on leading coil i have still no signal to squirt :scratch:

sorry i meant the black wire on L coil
I've seen so many differant wire colors there all bleeding together
this is becoming very frustrating

could i have shorted out the tach part of the squirt if i hooked it up to the positive side of the leading coil ? i had a auto gauge tach hooked up to that wire and wired the squirt to it at first.
all i want to know is did i screw something up or could it be some other problem.

btw i don't have a stim and don't have the money right now. been laid off for over a month.

Connect the 'Squirt to the - terminal of the leading ignition coil.

And are you sure the 'Squirt hardware is configured to trigger from the coil?

yes the squirt is connected to the leading coil (-) no rpm signal to squirt !

as far as hardware. i'm taking maxdaspeed7's word that its config right

just G.P. info. I can hook up my stock ecu and it cranks and runs fine

Do you get a signal on the 'Stim?

Are you connecting the center of the shielded wire to the coil?

i don't have a stim and don't have the money right now. been laid off for over a month

yes i'm connecting it to the center wire in the shieled cable

Buy a Stim or make one. I sympathize if you don't have any money, but you gotta' pay to play. :) A Stim is probably the single most useful troubleshooting device.

Have you checked the wiring on the 'Squirt to make sure it's set up to take a coil input?

Ok finaly got stim. No rpm signal

OK, so start tracing the signal. Is the 'Squirt configured to trigger from the Opto/Coil input?

Ok forgot to put jumper wire in. Now I have a rpm sig on squirt

I'd like to point out that I first asked this question in post #2 in this thread. :)

fovige my stupidness i was going off of someone elses word. that won't happen again:icon_no2: also just so i'm understanding this correctly the opti-isolator should not be in the board at all. thx for your help

ok found what i need to do and that is intall a jumper from xg1 to xg2. also maybe a dave cap. if this is correct i hope it is let me know thx again

You're going to want to do both of those things. Also, a series resistor helps to eliminate noise. Start at 10K and then move up until you don't get spikes.

ok thats cool but where does the cap go and the resistor go exactly i cant seem to find it in the manual but im proubly not looking in the right spot

i've got the squirt config right still no rpm is there some where in the settings that i need to set? so that i can run off of the coil

Just look in the Megamanual for "Dave capacitor".

The resistor goes in series with the negative of the coil and the Megasquirts ignition input.

Can you post your MSQ?

You get RPM on the Stim, but not in the car? Is that assumption correct? If so, where do you have the ignition pickup connected?

Yes I have RPMs on stim but not in car. Ignition input is single black wire from leading coil.