Cardone 77-7727 Remanufactured General Motors Computer (Renewed)
A professionally remanufactured GM engine control module engineered to restore factory-level performance and reliability through rigorous testing and precision assembly.
This remanufactured ECM is for various 1988-1993 General Motors vehicles, fitting models like the Buick Regal, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Chevrolet Lumina, plus some early Corvettes, with engines like 2.5L, 2.8L, 3.1L V6, and some 5.7L V8s. Thus EXCLUDES the high-performance 90-95 ZR-1 models.
Compatibility examples:
-Buick: Regal (Base, Custom, Euro, Gran Sport, McLaren, S, SE, SL)
-Chevrolet: Lumina (Base, Euro, LE, International, S, SE, SL) and Corvette (Base, Indy 500 Pace Car, International)
-Oldsmobile: Cutlass Supreme (Base, LE, Limited, International, SE, SL)
-Pontiac: Grand Prix (Base, LE, Limited, SE, STE, GT, International, S, SL)
Years:
1988-1993
Features
- On-vehicle validation testing – Each unit is validated on a vehicle to confirm proper fit and real-world function.
- OE-component replacements – All original equipment components known to have high failure rates are fully replaced.
- 100% electronic verification – Every module undergoes complete electrical testing to ensure it meets OE specifications for the specific application.
- Precision robotic assembly – Advanced robotic equipment is used for consistent, precise manufacturing and repeatable quality.
- Complete unit testing – Every remanufactured computer is 100% tested for quality and reliability prior to shipping.
Benefits
- Restores original performance and drivability
- Reduces the risk of early electronic failures
- Cost-effective alternative to a new OE module
- Consistent quality backed by thorough testing and modern assembly methods
Designed to meet OE requirements for compatible GM applications. Order with confidence knowing each unit has been rebuilt and fully tested for dependable operation.





Tim Biggs –
Bought for 1990 Chevy corvette – says works with model 1227727 but obviously doesn’t , when plugged in – which was stated is plug and play – meaning nothing else needed , the security system is activated , cooling fan runs non stop will crank but nothing happens. I e bypassed the vats system and it still acts the same way! Guess the $100 computer was just that and you get what you pay for , oh and I’m writing this also because there is no contact for any type of customer support lol
Linda Blackie –
Very well re-manufactured part. I never got a chance to actually try it.
The Cardone 77-7727 ECM is compatible with a number of GM vehicles, including some Corvettes. The compatibility information on Amazon indicates this part is compatible with the Corvette ZR-1, 1990 thru 1995. It is not.
Do not purchase this item if you are looking for an ECM for a C4 Corvette ZR-1. You are looking for the AC Delco 16163993 or equivalent.
Amazon Customer –
No problems what so ever. Easy to install since mine is under the hood.
Tero Granlund –
Fast delivery and worked perfectly.
Art Telson –
plug n play
Anthony –
Cardone 77-7727 ECM ECM didnt last for than 4 months.. There was white corrosion inside, and a burnt resistor with a plastic shield on it.. will see what / if there is any warranty and edit this review accordingly..
kev 442 –
1990 ASC MCLAREN TURBO GRAND PRIX
She now runs great. Ran a code 42 during diagnostics (esc electonic spark control)
Tested and checked for ground, replaced knock sensor to no avail.. ECM fixed it.
Thanks. Quality part
John Burke –
I inserted the EPROM from the old ECU. Checked for error codes and found none. Turned the key and my 1990 Corvette roared to life. It worked perfect and solved the problem.
Steph –
Radiator fans no longer work after installation on a 1990 C4 Corvette
Amazon Customer –
Worked perfect!!!