So my buddy bought this truck and dropped it off at my house 6-8 monthes ago. I messed with it a little and got to busy to deal with it. So today we decided to work on it. Bare with me here we used what we had. . Fixed a fuel leak on bowl. I posted on here earlier this year when we worked on it. I could get it to start with but it ran really rough and smoked bad. So we pulled injectors, swapped with known good ones from a 96, truck has an adreniline hpop. Truck had all AA injectors but cyl 2 and 3 had AB injectors. I used the old injectors out of 96 old orings and all. The truck started and ran well good enough we got to drive it for the first time. Trans was not shifting so we got to my shop topped off fluid and off we went. Truck seem to be clearing out starting to smoke less. Let of the fuel to go around a curve and she died. Turns over but wont hit a lick. Put my scanner on and oil pressure would not get over 40Psi. Any ideas. Think I blew an oring on injector?