A faulty engine control module (ECM) ground circuit may cause various issues including stalling, loss of air conditioning operation, and illumination of the Check Engine Light. Our technicians tell us that adding another ground wire to the ECM wire harness can often correct this issue.
Driveability Issues Due to Faulty ECM Ground on Hyundai Excel
Average mileage: 150,000 (150,000–150,000)
7 people reported this problem
1991 Hyundai Excel 150,000 mi, Visitor
Car will drive for 10 miles and then stall, let cool and it will start and drive again for like 10 miles. Problem has not been fixed, have replaced fuel pump but that did not fix the problem.