I am in need of some advice, i have an 85 omni converted to 87 electronics. And the car rev to 3500 rpm and dies. I have replaced

- fuel pump with fuel rail pressure of 50 psi
- map sensor with from 87 car
- LM brand new from dodge dealer.

Also checked timing, looks good. Checked map sensor solenoid pull vacuum on black nipple under map sensor connection and hit with 12v and vacuum drops.

I am have also tried to disconnect wastegate actuator from swingvalve and same things. I also only have codes 12 and 33 in LM.


I am lost for ideas at this point, any help would be great.