Engine stalls out while driving?

Hello,

This sounds like you have a dirty throttle body these guides will help fix the issue.

https://www.2carpros.com/articles/throttle-actuator-service

and

https://www.2carpros.com/articles/engine-stalls

Please run down this guide and report back.

Check fuel pump fuse !

Also check? SECURITY Indicator Illuminated and Engine Does Not Start
The theft deterrent control module (VTD) or the PCM has detected a problem with the theft deterrent system. The VTD module is unable to measure the ignition key transponder value. The System is in Learn Mode, refer to Programming Theft Deterrent System Components

If only forward rockers are moving, then you may have broken a camshaft. The root cause could still be a bad oil pump. With that many miles, anything is possible. You need to look into it further.

There are some variations between models and engines over which sensor(s) can stall the engine, but in general, crankshaft position sensors and camshaft position sensors tell the engine computer when to fire an injector or ignition coil. With a missing signal, there will be no spark and/or no injector pulses. Usually the fuel pump will also be turned off.

These senors often do not set a diagnostic fault code in the little time they have as a stalled engine coasts to a stop. When you do get a fault code, it only indicates the circuit that needs further diagnosis. They never say to replace a part or that one is bad. In this case you have the luxury of knowing physical damage is the likely suspect. I'd look for a crushed connector plug first. If the sensor is actually cracked, it could have still worked for a while until an internal wire or connection broke. Also, some GM engines will not start with a failed sensor, but if that failure occurs while the engine is already running, it will continue to run until it is stopped, but then it will not restart.

We rarely approve of throwing random parts at a problem. If you have a coil pack with three ignition coils, you know all three didn't fail at the same time. Also, that would cause a crank / no-start due to loss of spark only. You'd smell the unburned gas at the tail pipe. If you don't smell that, you aren't getting injector pulses or spark. That would point to the cam and crank sensors. If there is no fault code related to either of their circuits, you'll need a scanner to see if their signals are showing up at the Engine Computer.

Glad you could get it fixed, Please use 2CarPros anytime we are here to help.

Please start a new post for the Corvette

Cheers, Ken

Symptom Definition
Engine runs unevenly at idle. If bad enough, vehicle will shake. Idle RPM may vary. Engine idles at incorrect RPM.
Check the following items:
Check TP sensor for sticking and binding. Check for correct TP sensor voltage. See FUEL SYSTEMS in appropriate SERVICE & ADJUSTMENT SPECIFICATIONS article.
Check to see if condition is caused by engine running either rich or lean.
Check Park Neutral Position (PNP) switch circuit. Ensure PNP switch is properly adjusted.
Check for poor quality or alcohol contaminated fuel.
Check in-line fuel filter. Replace if dirty or clogged.
Check intake and exhaust manifold passages for casting flash.
Check fuel system for incorrect fuel pressure. See BASIC FUEL SYSTEM CHECKS in appropriate BASIC DIAGNOSTIC PROCEDURES article.
Check fuel injectors. Perform injector balance test. See FUEL INJECTOR BALANCE TEST under FUEL SYSTEMS in appropriate SYSTEM & COMPONENT TESTING article.
Check exhaust system for restrictions, such as a damaged or collapsed pipe, muffler or catalytic converter. See EXHAUST SYSTEM BACKPRESSURE under MECHANICAL INSPECTION in appropriate BASIC DIAGNOSTIC PROCEDURES article.
Check for fuel in pressure regulator vacuum hose. If fuel is present, replace regulator.
Check injector harness locations. Ensure injectors are connected to correct injector/cylinder according to firing order.
If rough idle occurs only when engine is hot, check PCV valve for proper operation. Check evaporative emission control system.
Check PCV system for proper operation.
Check engine compression. Check for incorrect valve timing, bent push rods, broken valve springs or worn camshaft lobes.
Remove spark plugs and check for wet plugs, cracks, improper gap, burned electrodes or heavy carbon deposits. Also, check condition of spark plug wires. Spray spark plug wires with a fine mist of water to check for shorts.
Ensure initial ignition timing is properly set.
Check Knock Sensor (KS) system for excessive retard.
Check engine idle speed (both base and PCM idle).
Check Idle Air Control (IAC) system. Check for foreign material in IAC bore.
Check EGR system for proper operation.
Check Power Steering Pressure (PSP) switch circuit.

We had an '84 "Vette" donated to my Automotive program. I'm an expert on the charging system because I built a lot of bugs into it for my students to find.

First have this checked with a manual oil pressure gauge. Then replace the oil filter iwth a new or good one as well as an oil. If this is a 3800 you shouldh avhave packed thpump with a little vaseline so it would prime. You culd also have bearing wear causing this.

Do below and get back with some testing results:

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if so, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, cap and rotor, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing

If both fuel and spark is present-check the valve and ignition timing, this will lead you to problems
with compression and valves opening and closing at the wrong time/broken or jumped timing
belt/chain.

Try resetting your security system first then if still thee scan for codes and check fuel pressure with a gauge auto parts rent it.