After building my car all winter and just wraping things up, today i figured was the day to start it.

-Microtech
-stock coils

This moring i put my base map on it and started it right up, everything was fine, Oil pressure was great, everything was good. let it run for a couple mins if that then shut it off b/c i don't have my radiator hooked up. so ive started it a few times threw out the day and it was all good. I drive it around back to wash my engine bay and give the car a good bath. After it was all washed i let it dry for idk 3 hours or so and went to try and start it and all it did was crank and maybe every 3-5 rotations it would hit a little. Well i narrowed it down to im not getting any spark on my TRAILING side. LEADING side is good it lite me up pretty hard lol. nothing is working on the "T" side. I put another coil in that i know was good and nothing. Only option is Microtech or the wiring. Am i missing somthing? i know the wiring has to be good theres nothing that could be wrong about it. i have my coils on the inside of my car on the tranny tunnel.

 

OK, so now ive got it narrowed down this far. Turn the ignition on and as soon as you turn the key to START (motor turns over cars trying to start), i mean as soon as you turn the key "T1" sends A spark but only at the click of the key. as soon as you turn to start and everything starts going theres just one spark on T1 and thats all ya get. I held the spark plug wire a little bit out of the coil hole to find this out. Itryed it probably 75 times. i think my microtech is bad or something. are these life time warranty lol.

 

You might want to post something on the Microtech section, if you hadn't already. IIRC, the microtech doesn't spark trailing until it is running, so I don't think that is your issue. Go over everything, recheck connections and possible vacuum issues. I would even go as far as disconnecting and reconnecting everything just to be sure. Good luck.

 

Its your CAS wiring.
My haltech has a trigger wire that wasn't shielded which caused the exact same problem.
I re-did the wire, wrapped it up, and it fired right up.
Hope that helps?

 

I don't think Microtechs have that same trigger issue Haltechs have. Could be worth a look though.

 

dude dude dude hold up. what wire are you talking about. I don't think ive ever been so lost and just so dump founded at something. Your onto something. I took my time and solider every wire and heat shrunk it and everything. i did a crazy wire tuck so i wasn't riggin ****. (hence why the coils are on the inside).

Edit: NVM i over looked the haltech part.

 

There lies the problem. i forget when the trailing is suppose to be used

 

Yea i posted there. I went over everything. dis-reconnected everything. did the battery a couple time, did some fuses. But if the Trailing only works when its running then it should run b/c i have Leading spark

 

If you have leading, but no trailing on crank, that is normal. Could be a fuel issue, do you have a way to check if you have pressure to the rail?

 

I have fuel, I have spark, And timing is dead on. this is why im so stumpped. The darn thing just quite running.. I get the yellow (tps calibration) light flashing thats no big deal. but i noticed at one point in time the red light flashed like twice but never came on since. Idk what to do. I got microtech set on sequental fire so that isn't it, its also set on 4cyl, so that isn't it. idk im lost

 

This leaves only a few culprits left. Check compression first and foremost, if you have fuel, air, and spark and it ran before with these it's about the only thing that'd be missing. Check your cranking map, it could be too rich given you a 'hot start' effect.

 

my compression is amazing for what the housings looked like lol. i have very good compression and very strong stroke. i checked my map over and over and over again b/c i figured something might have went haywire but no everythings the way it should be

 

Crank the snot out of it with the leadings out and the MT disconnected, see if you can clear any fuel out. Let it sit for about 30 minutes, put the leadings back in and give it a go. Unless something changed/happened it last ran or the block really didn't like the no coolant running, it should fire up. Have you checked your water thermo map? It could be that when the block warmed up it's compensating a bit too much or something.

 

I took the spark plugs out already cleaned it all out and did all that jazz many times. I checked the map but it looked ok

 

pretty sure your trailing coil has nothing to do with the engine starting

 

Roger that.

 

Are you saying that you are running the engine without coolant or a radiator?! If so, STOP. You are creating massive uneven hotspots in the block and have probably already done considerable damage. There is no amount of runtime where this is a safe practice. And if you literally let it run a couple of minutes, you have probably cooked the engine.

The Microtech doesn't fire trailing while cranking.

The stock maps are very rich. You need to lean them out, clean your plugs, install a damn cooling system and try again.

 

aaron, i just ran it enough to see if it would run. not a couple mins. If there was coolent in it the temp gauge wouldn't have even budged. Im sure everythings fine. but on the other hand im a dumbass. seriously. i would say what the problem was but im to embarrassed. i feel like an idiot. I know it dosn't fire trailing on crank, and i don't have a "stock" map, but it is very very rich.

 

arron u can lock or delete this thread. no good information in it.

 

You should tell us what happen

 

dont worry about the trialing, it will run fine on leading only. also, if you TPS isnt working/calibrated, and if decel fuel cut is enabled, it may be cutting fuel

it sounds like your crank map need some work. are you reading any RPM?