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MULTIPORT FUEL INJECTION(MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <3.0L> 13B-233 STEP 1. Check the spark plugs. CAUTION Do not attempt to adjust the gap of the platinum plug. Standard value: 1.0 −−−− 1.1 mm (0.039 −−−− 0.043 inch) Limit: 1.3 mm (0.051 inch) Q: Is the plug gap at the standard value? YES : Go to Step 2. STEP 2. Check the spark plug cable. Limit: maximum 22 k Ω Ω Ω Ω Q: Is the resistance normal? YES : Go to Step 3. STEP 3. Check the injector. 21 <No.2 cylinder>, B-19 <No.3 cylinder>, B-17 <No.4 (2) Measure the resistance between injector side connector terminal 1 and 2. Standard value: 13 −−−− 16 ohm [at 20 °°°° C (68 °°°° F )] Q: Is the resistance standard value? YES : Go to Step 4. AKX00383 AKX00383 Platinum AB AKX00382 AK000618 AD CONNECTORS:B-17,B-21,B-30 B-30 B-17 B-21 AK000559 2 1 INJECTOR SIDE AB |