wont stay running more than 30 seconds

[ultimatepoghero]

I am Selling this car and trying to Fix it as well either one if you can help me or buy the car from me just Read on. skip to the end for details my email is ultimatepoghero@yahoo.com if you want more info or my home phone is (912) 261-2196

 

i have a black 84 300zx turbo the other day i was testing my window wiper's which haven't been working and after i had no luck fixing that i went to crank the car and after starting it died in like 30 seconds. I've been running megasquirt in my car for a month with pretty much no problems maybe a hesitant start rarely. the FSM told me i had to remove the blower motor under the dash to get to the Time Control Unit to check the signal flow for the wiper motor and i had to remove that and unplug alot of things but nothing that i thought would effect the running of the car just stuff for the airconditioning. I even put all that back together and it still died after cranking. Wierd thing though is i unplugged the vacumm hose for the megasquirt from the car and the car stayed running for alot longer. I had to install megatune on a friend of mine's labtop because mine conveniently died that day to see if anything wasn't reading right on the ecu. The map reading seemed right although i still had to unplug it and increase the ve value at 101kpa so the car would stay running long enough for me to see anything and the only thing i noticed was my ego reading looked super lean i'm not sure because when i installed megatune on my friends labtop i set it up differently than mine. the ego meter reads from 10 to 19.9 i think instead of a percent like .01 to .9 but it read all the way to the left which was lean before but if it was displaying afr then a lower number would be richer i know i probably sound like i don't know what i'm talking about i didn't set up megatune on my labtop someone else did for me and i didn't have a wideband oxygen sensor then so i might have set it up to read differenlty because now i do. I checked to make sure the injectors were firing while the car was still on the main vacumm hose for the megasquirt didn't seem like it had leaks i realy don't know why the car decided to do this all of a sudden and i feel completely in the dark please someone tell me what to do besides check everthing or start over because this car is becoming realy high maintenance for me and i'm thinking about selling it so consider this an add too i put $4000 into this car i guess that or best offer considering it doesn't run sort of it was running great the megasquirt just needed to be tuned somemore and put on a dyno a new e-brake cable because the old one is stretched all the way and the window wiper's don't function obviously other than that i just put new shocks on it and the car is fine. please someone respond to this thread i am screwed right now.

[383 240z]

a little puncuation would help!!! It almost sounds like you have a decent sized vac leak. Keith