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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-258 STEP 5. Using scan tool MB991958, check data list item 69: CAUTION To prevent damage to scan tool MB991958, always turn the 69, Cylinder 1, 4 Heated Oxygen Sensor (rear). • Warming up the engine. When the engine is revved, the output voltage should repeat 0 volt and 0.6 to 1.0 volt (4) Turn the ignition switch to the "LOCK" (OFF) position. YES : It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use − How to Cope with Intermittent Malfunctions . NO : Replace the PCM. Then go to Step 15. AK303804AB MB991910 DATA LINK MB991824 MB991827 |