ok... so for no reason at all the car lost spark overnight.



it has three MSD's 6s'a (one on leading, two on trailing) and a Microtech LT8s. no fuses are blown anywhere and i doubt all three 6a's would die at the same time. how would i go about testing the Microtech to see if this is the problem. this is the only thing i could think would be wrong.



also, i have another Microtech LT8 with a completely stock base tune. should i just plug it in and see if it works? whats the difference between the LT8 and the LT8s?

a bad CAS or wiring

how would i check the CAS? ive never heard of one going bad though.



and the wiring seems to be good. all grounds are still in place. no burnt or loose wires.

since its got an ecu in it, fire up the dash or the laptop and spin the CAS, and see if it reads rpm, if it does not, than the cas or wiring is bad somehow.



if it does, than you have to go the other way. since its either the ecu, MSD's or coils, i think id start with the ecu, and work your way down the chain



i dunno if an lt8 and l8ts plug in with either other, but if they do, try it, all you're looking for is spark, you dont need to run the engine for that

ok... fixed the spark already. but the damn car isnt starting still.



my brother has the Microtech program on his computer and were going to switch the maps over to the other ECU to see if it works. it has the same plugs and everything. i think one is just an American version, and ones an Austrailin version. at least i read that somewhere. who really knows?

What was the spark problem?

i think i just checked it wrong the first time. i did it by myself. cranking the car while looking to see if the screw driver in the spark plug wire was arking. lol... kinda hard checking by your self.



i had someone crank it for me the next day while i checked it correctly. havnt had a chance to check the ECU yet. no time, but im off the next few days.



im just going to load all the maps onto my other LT8 and see if it will start it up. its not an LT8s. but i think theres no real difference. if there is, we'll notice it while loading the maps.

Is the other ECU set up for an RX-7?

yes. it was on a TII.

ok