Hello i have a 1982 tras-am with the crossfire inj. looks brand new nice car but having computer problems, when i pulled it out of storage did not run good, code 44 came up, so i started replaceing parts, o2 sencer, map sencer, fuel filter, check the fuel presure, its ok, tci senser, cap, roater, plugs, wires, coil, modulator, check the pickup coil, its ok. lets see $400 dallors or more, now my codes say 34-44-45,???? and runs like crap. hope someone can help me ,...

oh when i disconected the map sencer it runs good on top end, but realy hard to get it going.... sorry about the typing. my 4th day working on the car and im burned out...

 

code 34 says - vacuum sensor circuit (I assume this is for a carb'd car)- Check the wiring leading to terminals 20, 21, & 22 of the ECM, Check the connectors at the ECM & check the vacuum sensor wiring and connections. Replace vacuum sensor (lovcated in engine cpt.).

TBI & PFI cars, it referrs to low voltage at the MAP sensor meaning the ECM is seeing an impossibly high manifold vacuum
conditions to meet this are
-RPM less than 600
-manifold press is less that 13kPa (whatever the h-ll that is)
or
-RPM greater than 600
-throttle angle is greater the 20%
-manifold press is less that 13kPa
one or other condition is met for more than 1 second

44 is lean exhaust (the code will be carried over from last time if you never cleared the codes from it throwing it the 1st time)

45 is rich exhaust.

Make sure the timing and idle speed is correct. Make sure the FP is staying good at more than just idle and TPS voltage should be o.525±.o75v at 400 rpm (minimum air).

Depending on how long it's been in storage... it could be something as simple as the gas just being bad too...