smokes black,no tuning helps

[89gtar]

hi! iam running ms2 ver3.0 and 2.35 code. new build, all sensors seem ok rpm,02,iat,clt,tps,and map on a tuned port 355 cubic inch transam 89'. it starts right up and idles but when i touch the gas it wants to die. it smokes black constantly(rich) and no matter what table i change it doesn't help. i set the timing it got better idling but same problem. o2 reads .9+ volts constantly one the o2 sensor heats up. i can still plug in factory ecu and runs perfect so i know all components are ok. is there a way to adj inj. pulse width independantly? any help on the situation would be great thanks, doug

[Bernard Fife]

89gtar,

How does MegaSquirt run on the stim? Do the injector LEDs respoond appropriately to the rpm pots, etc.?

Lance.

[89gtar]

yes the ms 2 works perfectly on the stim and all the wiring between the ms2 and my car has been triple checked for errors. have researched a great deal to make sure all is right. i am going to look at some of the signals i/o with my o'scope and see if any are abnormal. also i will datalog

[MegaScott]

Is your MAP sensor working?

[460stang]

Sounds like MAP sensor, I had one install where I pinched the MAP sensor hose in the firewall groumet. Acts just like you say.

Check your Map sensor values at idle.

[89gtar]

PROBLEM SOLVED, I DISCOVERED THAT THE VACUUM HOSE CONNECTION POINT WAS NOT APPROPRIATE AND INSTALLED ON REAR OF TPI PLENUM. WORKS GREAT NOW JUST HAVE TO FINISH TUNING!