general information - Martin Nez

4-22 FI SYSTEM DIAGNOSISFI SYSTEM TROUBLESHOOTINGCUSTOMER COMPLAINT ANALYSISRecord details of the problem (failure, complaint) and how it occurred as described by the customer. For thispurpose, use of such an inspection form such as below will facilitate collecting information required forproper analysis and diagnosis.EXAMPLE: CUSTOMER PROBLEM INSPECTION FORMUser name: Model: VIN:Date of issue: Date Reg. Date of problem: Mileage:Malfunction indicatorlamp condition (LED)Malfunction display/code(LCD)Always ON Sometimes ON Always OFF Good conditionUser mode: No display Malfunction display ( )Dealer mode: No code Malfunction code ( )PROBLEM SYMPTOMSDifficult Starting Poor DriveabilityNo cranking Hesitation on accelerationNo initial combustion Back fire/ After fireNo combustion Lack of powerPoor starting atSurging( cold warm always)Abnormal knockingOtherEngine rpm jumps brieflyOtherPoor Idling Engine Stall whenPoor fast Idle Immediately after startAbnormal idling speedThrottle valve is opened( High Low) ( r/min)Throttle valve is closedUnstable Load is appliedHunting ( r/min to r/min) OtherOtherOTHERS: