3.
Monitor sensors related to fuel trim(Ex. HO2S,MAFS,MAPS,TPS,MAPS,TPS,ECTS,PCSV,Injectors etc.) with scantool
Connect scantool to DLC(Data Link Connector)
Warm up the engine to normal operating temperature.
Monitor sensors related to fuel trim(Ex. HO2S,MAFS,MAPS,TPS,MAPS,TPS,ECTS,PCSV,Injectors etc.) with scantool
Are those parameters displayed correctly ?
YES
▶ Fault is intermittent caused by poor contact in Sensor’s and/or PCM’s connector or was repairedand PCM memory was not cleared. Thoroughly check connectors for looseness, poorconnection, bending, corrosion, contamination, deterioration, or damage. Repair or replaceas necessary and go to "Verification of Vehicle Repair" procedure
NO
▶ Go to "Terminal and connector inspection" procedure.
