ok not sure why but the tps is showing no reference voltage. ive adjusted it before and it did show it. now i decided it needed to be readjusted and it showed nothing. i thought maybe there was a broken wire so i checked it again at the computer and nothing. i than changed the computer still nothing. anyone else that can help?

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DONE: 86gt 5 speed 4.9 complete rebuild with buds outback northstar pistons , delta cams E303 cam , full ported , polished , stronger head springs, and flow tested heads and manifolds. rockcrawl's custom chip , polished crank . too much to list

86 gt 350 4 speed
85 t-top BEING PARTED
86gt 4.9 highly modified
86 and 87 fiero database www.geocities.com/cwandall/fiero.html

Is the ingition key on? Just gotta ask, I've done it before.

Do you have 5v ref at the MAP sensor? TPS and MAP share one wire for ref voltage.
If you really don't have 5v reference at the computer, then its a bad computer.

yes the key was on. didnt check the map but will do that now. and i changed the computer

You might try unplugging the connector from the computer and measuring ohms of resistance between the ref. volt wire and ground.
Something might have shorted out (burned insulation, pinched wire, etc.) and is dragging the voltage down.
Obviously, the key needs to be off.

[This message has been edited by Raydar (edited 06-15-2008).]

ok found the problem i now just need to get the tps. adjusted

NO ya don't. ya gotta let us know what you found.