Hi all,

I own a 1992 chevy corvette Coupe with the stock LT1 motor. While driving to see a friend one day I was in a rush and accelerated a bit over the speed limit, I believe I went from 32mph to about 64 mph in a 40 mph zone. Yes, I know I should not rush and speed I'm sorry. I saw a cop driving along the opposite side of the road as he started to slow down and try to turn around in a side street to catch me; however, I do not believe he got me on his radar. I pressed the brake and turned into a side street taking the turn comfortably at about 22 mph. When I went to step on the throttle again the car accelerated a bit to 25 mph then immediately engine shut off. All the lights on the dash remained on even the lights in the car and headlights; however, I had to pull the e-brake to stop and press my foot on the extremely stiff pedal as hard as I could. I went to turn the car on again and while it would crank just fine it wouldn't turn on. Upon examining the engine and battery/alternator on the road the voltage read normally(roughly 12 volts before cranking then 9 volts while I cranked). After waiting about 10 minutes I was able to turn on the car fine and it sounded normal as I drove it back home going about 25 mph. The next day I checked my fluids and even pushed in the spark plugs a bit to make sure there were no issues and I found the car was totally fine but I just needed to add a bit of oil since I was in the middle of the engine oil on the dib stick.I had already changed the oil and even transmission fluid about a month ago(roughly 1000 miles on the car since) I then started the car and it sounded strong and turned on fine. On a typically day the car usually starts up fine and runs fine. However, sometimes after going on a trip and going to turn the car on again it may crack fine once then turn on the second crank and idle at about 1500 rpm before dropping to 600 or 700. It may also do that on the first crank or after successive cranks but this does not happen all the time. I do not believe this is related to my engine shutting off on me but I included it incase it could. I went to read the check engine codes today and here were the results:

Module 1:
H72
H74
Module 4:
H16
Module 9:
NONE

Does anyone know what these codes mean, I jumped pins A and G the ALDL to get these codes. If there are other codes I can cread or find please let me know, I do not have an OBD-1 scanner btw. I do have a new aftermarket radio and speakers in the car. I removed the resinator and put in an X pipe along with magnaflow magnapack mufflers. I also have original c6 wheels on the car with Hankook venus tires.

What could the problem have been and is the car safe to drive? I do not think it is battery or alternator as those were replaced before I started driving the car almost daily this summer; however, during the radio replacement in the winter the battery did die on me twice and I had to recharge it with my battery charger. The distributor, wires, plugs and rotor were supposedly replaced when I got the car and I should have the old parts in boxes in my garage. I am concerned it could be CAM sensor or Fuel pump/injector related; however, I do not know. The car could be totally fine. Any input or advice would be greatly appreciated! Thank you!!.

 

Code 72 is Vehicle speed sensor loss. 2nd or 3rd gear switch was open for 1.5 seconds when speed was above 30 MPH with the RPM greater than 5000 RPM and a throttle angle above 70%.

Code 74 is Traction control system circuit low

Code 16 is Distributor ignition system low pulse.


Clear the codes, and see if they occur again.