|
1999 BMW Z3 Roadster 2.5L Excessive Emissions, Poor Fuel Economy
Negative -28 STFT, both banks. All 4 oxygen sensors are reading full rich at about .93v ECT reads around 200-205 fahrenheit when warm. Vehicle is in closed loop. The crazy part is if the hose connected to the valve cover is disconnected, the fuel trims go ... 
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 7 Replies Received (View Replies)7 Replies Received (Hide Replies)
|
Open Help Request
|
7 Replies Received
7 Replies Received
Related Documents & Media | VIN | 4USCH9338X |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / Fuel Injected |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Open Help Request
Vehicle Data
1999 BMW Z3 Roadster
| VIN | 4USCH9338X |
| Engine | 2.5 L / 6 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / Fuel Injected |
| Emissions | OBD-II Compliant |
| Symptoms | Excessive Emissions, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| P0172 | Fuel System Too Rich (Bank 1) |
| P0175 | Fuel System Too Lean (Bank 2) |
Video