Can Auto Technicians be Trained to Repair IM240 Emission Failures?

Paper #:
  • 960091

Published:
  • 1996-02-01
Citation:
Glover, E., Croy, B., and Hall, B., "Can Auto Technicians be Trained to Repair IM240 Emission Failures?," SAE Technical Paper 960091, 1996, https://doi.org/10.4271/960091.
Pages:
17
Abstract:
Eleven experienced commercial automotive technicians were recruited and trained to repair IM240 emission failures using a specially developed 30 hour course. The training course emphasized the use of an oscilloscope and a flow chart and wave form strategy to repair vehicles. Each technicians' performance was evaluated based on the repair of three or four in-use Arizona IM240 failures. Pre-training and post-training written tests were also administered.Results from this limited study were encouraging. After the technician training, HC and CO emission levels were reduced by 69% and NOx by 58%. More importantly, most of the technicians learned some new and useful diagnostic and equipment skills which they can immediately apply to their businesses. They also became more motivated to tackle the challenge of repairing vehicles to low transient emissions, and aware of the existence and use of new sophisticated diagnostic tools such as oscilloscopes. This is manifested dramatically in the decision of six out of eleven participants to spend (out of their own pockets in some cases) $2,000 to $3,000 on new equipment such as oscilloscopes.
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