|
1990 Chev/GMC Truck 1500 454SS 7.4L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, MIL Flashes
multiple problems....no communication at ALDL with snap-on scanner have ohm tested wires between ALDL and puter tested ok...have no control for IAC at puter and IAC is open causing high idle...no 5V ref. from puter to module replaced module improved runnin...
FIX posted 5/8/2000
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle |
Message Closed
|
| VIN | 16CDC14N3L |
| Engine | 7.4 L / 8 cyl |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, MIL Flashes |
| Occurs | Always |
| Misc. | Prom Id# 16151508 |
Message Closed
Vehicle Data
1990 Chev/GMC Truck 1500 454SS
| VIN | 16CDC14N3L |
| Engine | 7.4 L / 8 cyl |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, MIL Lamp on, MIL Flashes |
| Occurs | Always |
| Misc. | Prom Id# 16151508 |
Video