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1.1  HFM Sequential Multiport Fuel Injectin/Ignition System (HFM-SFI)   >   12 Diagnosis - Complaint Related Diagnostic Chart

Complaint/Problem Possible cause Test step/Remedy 1) Engine starts poorly and accelerates poorly Injector (Y62) control and injection time. Hot film MAF sensor (B2/5). ECT sensor (B11/3). 23 19.0 - 24.0 23 4.0 23 8.0 Engine does not start No voltage supply from base module (N16/1), overvoltage protection relay module (K1/2) or relay module (K40). CKP sensor (L5) defective. FP relay module (K27) defective. Fuel pumps defective. Injector (Y62) control and injection time. Malfunction of drive authorization system (DAS) in all models as of model year 1996 23 1.0 - 3.0 24 7.0 23 6.0 34 2.0 23 19.0 - 24.0 Test see DM, Body and Accessories, Vol. 1 (RCL) Engine has uneven idle Injector (Y62) control and injection time. EGR valve defective. 23 19.0 - 24.0 23 40.0 Engine has uneven idle and insufficient engine output Camshaft timing adjustment defective. 23 31.0 - 32.0 1) Observe Preparation for Test, see 22 .