158 Auto Engine Performance and Driveability Copyright by Goodheart-Willcox Co., Inc. 5. Th e waste spark fi res on the _____ stroke. (A) intake (B) compression (C) power (D) exhaust 6. Technician A says that the ignition control module may be part of the ECM. Technician B says that the ignition control module may be mounted under the ignition coil. Who is correct? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B. 7. Which of the following wire gages is most likely to be used for ignition primary wiring? (A) 0 (B) 6 (C) 10 (D) 22 8. Some spark plugs used in distributorless ignition systems have special _____ to prevent misfi ring. (A) insulators (B) threads (C) resistors (D) electrodes 9. Th e input from the knock sensor helps the ECM to compute _____. (A) waste spark (B) ignition timing (C) ignition dwell (D) coil output 10. Technician A says that the ion-sensing ignition system can determine if complete compression has occurred in the cylinder. Technician B says that the spark plug serves as the ion sensor. Who is correct? (A) A only. (B) B only. (C) Both A and B. (D) Neither A nor B.