- Diego Alonso Lazo Olivos pleaded guilty to fake emissions tests on June 1. - He received 18 months probation and must pay $250 monthly restitution for 20 months. - Olivos can't conduct emissions tests or seek certification and must testify if subpoenaed. OREM — The third of four Orem auto repair shop employees accused of giving fake emissions tests to vehicles that would have otherwise failed a regular test has been convicted, and a motion has been filed to dismiss the charges against the fourth. Diego Alonso Lazo Olivos, 28, of Saratoga Springs, pleaded guilty on June 1 to 10 counts of attempting to violate the Air Conservation Act, a class A misdemeanor. He was immediately sentenced to 18 months of probation and ordered to pay $250 a month in restitution for the next 20 months, according to court records. Olivos was also ordered not to conduct any future emissions testing or seek certification as an emissions technician and must testify if subpoenaed in the case of the remaining defendant. In November, Olivos, Benjamin Louis Nielsen, 52, of Pleasant Grove; Matthew Neil Lerud, 41, of South Jordan; and Christian Valdovinos, 27, of Provo, were each charged in the 4th District Court with multiple counts of violating the Air Conservation Act, a third-degree felony. Nielsen pleaded guilty in February to three counts of attempting to violate the Air Conservation Act, a class A misdemeanor. He was sentenced to 18 months of probation and ordered to pay a little over $700, court records state. Valdovinos pleaded guilty in March to two counts of attempting to violate the Air Conservation Act, a class A misdemeanor and received a similar sentence to Nielsen. Leurd, was charged with 10 counts of violating the Air Conservation Act, a third-degree felony, and had a pre-trial conference