|
1989 Chevrolet S10 2.5L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, MIL Lamp on
The vehicle runs much better when I created a vacuum leak by unplugging the MAP. PCM shows 25 in/hg with MAP vacuum unplugged. Engine vacuum at idle is 18-20 in/hg, but PCM only shows 9 in/hg with MAP plugged in. The truck is hard to start, hesitates when the ...
FIX posted 12/21/2010
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 16 Replies Received (View Replies)16 Replies Received (Hide Replies)
|
Message Closed w/FIX
|
16 Replies Received
16 Replies Received
Related Documents & Media | VIN | 1GCBS14E5K |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / TBI |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, MIL Lamp On |
| Occurs | Always |
| Misc. | Pikc Up Truck |
Trouble Codes
| 33 | MAP Sensor Circuit Signal Voltage High |
Message Closed w/FIX
Vehicle Data
1989 Chevrolet S10
| VIN | 1GCBS14E5K |
| Engine | 2.5 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / TBI |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, MIL Lamp On |
| Occurs | Always |
| Misc. | Pikc Up Truck |
Trouble Codes
| 33 | MAP Sensor Circuit Signal Voltage High |
Video