Power Windows,Radio,temp gauge,Oil Pressure Gauge Failure

[TEKPHANTOM]

Ok basic background.

Motor was rebuilt,then a new computer was installed.
Now my oil presure gauge does not work,dealer says I need a new Oil pressure sending unit-this worked fine when I dropped car off,after new computer it flatlined.
#2-Temp gauge not working,Dealer says replace Temp senson on drivers side block-I did that,still will not move,stays in dead flat position.
#3-Both my power windows are not working,all fuses are good,but the switches themselves are not getting power at all,I metered them,and the power going through the wires to the switches is gone,but the 30amp fuse is good.I think the terminal has no positive 12 volts WTF??Just so you know Drivers side has a new motor already,worked great until a new computer was installed.
#4-Radio has no power,odd thing,the radio fuse is good,but some some reason the terminal where the fuse goes into has no +12 volts???
WTF ???
All this happen once I got the car back.Lets review.
2 Power windows-no power(drivers window stuck down,Passenger window is up)
Radio -no power
Temp gauge does not work
Oil Pressure gauge does not work

Anyway Dealer refuses to take responisbility for any of these problems saying all they did was a diagnostic and replaced the PCM Computer and things just stop working sometimes.What a bunch of crap.
I spent 10 hours trying to solve these problems,with no luck,I cannot believe all this stuff is screwed up at the same time.
1 more- seat belt light indicator will not go off either, had this problem for 3 years now,im going to remove dash and put a piece of tape over it so I dont have to look at it anymore.

SO ANYONE GOT ANY IDEAS OR SUGGESTIONS.Dealer wants 335 dollars just to fix oil pressure gauge and engine temp gauge,which sucks,parts are only 45 dollars.power windows they will try to bleed my wallet dry.

Troy-95 Camaro-new motor 3000 dollars invested,and still got too many freaking problems.

[tacoma man.]

was it the same kind of motor that came out of it?
sounds like some thing on your wiring harness isnt plugged in, you may want to check it out.

[DaMoNe6969]

Did you check ALL your fuses?? All of these problems could be caused by one of the ignition fuses in the car.. Make sure they are clean too.. I just went through a similar problem with my 99' silverado.. One of the ignition fuses was greasy and shorting out