Browse Publications Technical Papers 920822
1992-02-01

Effect of Engine Condition on FTP Emissions and In-Use Repairability 920822

Twenty in-use vehicles that had failed the I/M test in the State of Michigan were inspected for engine mechanical condition as well as the state of the emission control system. Mass emission tests were conducted before and after repairs to the emission control system. The internal engine condition (i.e., high or low levels of cylinder leakage, or compression difference) showed little effect on the ability of the repaired vehicles to achieve moderate mass emission levels. Nine of the twenty vehicles were recruited after three years, and with the exception of tampering, the original emission control system repairs proved to be durable.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Impact of Computer Aided Engineering on Ford Motor Company Light Truck Cooling Design and Development Processes

932977

View Details

TECHNICAL PAPER

The effect of engine misfire on catalytic converter and vehicle emissions

2000-05-0325

View Details

TECHNICAL PAPER

Vehicle Onboard Control of Refueling Emissions — System Demonstration on a 1985 Vehicle

861551

View Details

X