Engine starts and then stalls while driving?

A mechanic scanned it, no codes.
It just shows that the BCM is shutting off the injectors after two seconds. No clues as to why it does this.
The way I understand it passlock doesn't use a special key:
Passlock
This system allows starter operation, then kills the injectors one to two seconds after startup. This is a “Hall-Effect” system. The key cylinder housing has a small magnet that rotates past the Pass-lock sensor. The sensor is powered and detects the rotation. The voltage on the sensor then drops to a specified value (there are ten different values). There’s no pellet in the key. So basically this system is checking to see that a thief has not popped the lock cylinder to steal the vehicle. You have to perform a Power-train Control Module (PCM) relearn procedure (need a programming scan tool). The Pass-lock system was used on:

Buick
Skylark 96-98

Chevrolet
Cavalier 95-on
Impala 2000-on
Malibu 97-on
Monte Carlo 2000-on

Oldsmobile
Achieva 96-on
Cutlass 97-on
Intrigue 98-on

All GM trucks 98-0n

It was the passlock sensor. Even though the dash light was acting like there was no passlock problem.

I did a 30 minute pass lock relearn and it started right up. Thanks for the help

My truck has the 6.0L Gasoline engine. About a month ago my truck started dying when the engine was warmed up. There was no check engine light. After discussing the problem with a mechanic, he suggested that it may be the fuel pump. Being that it is not uncommon for Chevy fuel pumps to go out at 80000 miles I took his advice and changed the pump. Once again the truck died when the engine warmed up. I thought that it may have been an electrical problem, so I had my battery and alternator checked. The battery was bad, however, this did not cure the problem. At this point I had no clue so I took it to the dealer. They told me that the ignition switch was bad and I had them change it. At last the truck ran. I drove the truck to and from work for a few weeks, about 16 miles per day with no problems. The engine did seem to miss just a little at an idle. This weekend I was taking a trip of about 200 miles. At almost exactly 100 miles and 75 miles per hour with the cruise control on the engine shut off and the battery light came on. Then it restarted on its own. I drove the next 10 miles with no problems. Then it started shutting off about every 5 miles, sometimes restarting and when it didn't I was able to shut the ignition off and restart with no problems. A local mechanic told me that I might have water in my fuel. I put the recommended conditioners in my tank and filled it the rest of the way up with High octane fuel. The problem did not reappear at slower speeds but after driving almost 100 miles once again the engine started the same problem. Any help would be greatly appreciated. I am desperate and broke from trying so many solutions. Thank You.

Thanks for your reply. The battery light did not come on while the engine was still running. The engine would quit, the light would come on and then the light would go back out if the engine restarted. As for reading the computer, I did have it read the first time this was happening. It did not return anything at that time, but I will try it again.

My 2000 Silverado did the same thing. Turned out to be some kind of crank sensoir as indicated above. Have not had a problem since changed out.

I was plowing my driveway, everything was fine, I was backing up and the engine stopped running. No bang, clunk, noise of any kind, interior light works, head lights work, no radio, no dash instument, engine doesnt turn over with key.

I'm sorry it's a 1994 chev trk. I dont know if it matters, where abouts is the power distribution center on this truck? On fender by battery?

I have the truck listed above 5 speed.
Was driving and the truck just shut off no warning had been running great. Well I checked and I have no spark the fuel pump runs when key is turned on and do have fuel PSI the cap rotor plugs and wires have been replaced about 2 weeks ago just for preventive maintenance. So a friend told me it might be the crank sensor so I replaced it but still crank but no start. I checked and I have power 12 volts to the module and coil but no spark at plug wire or no spark at coil. Any ideas would help. Thank you

I have tried a ignition module, but I will try a cam sensor and let you know. Thank you very much.

Thanks. I have checked the crank sensor and it seams to be working. Can I check the cam sensor the way I did the crank sensor or is it checked a different way?

Okay, thank you. I’ll check it and let you know. Thanks again.