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1998 Lincoln Continental P0354, P0304, P0308 Codes

Tiny
FQCHARLY
  • MEMBER
  • 1998 LINCOLN CONTINENTAL
  • V8
  • FWD
  • AUTOMATIC
  • 152,000 MILES
Out of nowhere, rough idle and low speed hesitaion, etc. 3 trouble codes thrown. I have had a bad coil before, but the P0354 is confusing me. Is there another coil somewhere? I thought each cylinder has its own, but is there some part common to cylinder 4 and 8?
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Saturday, June 12th, 2010 AT 1:58 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
P0354 - Ignition Coil D Primary/Secondary Circuit which pertains to cylinder no. 4 coil

Description: Each ignition primary circuit is continuously monitored. The test fails when the powertrain control module (PCM) does not receive a valid ignition diagnostic monitor (IDM) pulse signal from the ignition module (integrated in the PCM).

Possible Causes:

Open or short in the Ignition START/RUN circuit
Open coil driver circuit
Coil driver circuit shorted to ground
Damaged coil
Coil driver circuit shorted to VPWR

Diagnostic Aids: Use the 12-volt non-powered test lamp to verify START/RUN voltage at the ignition coil harness connector.
Check the coil driver circuit for open, short to VPWR, or short to ground.

P0304 and P0308 misfires

Check the sparkplug/compression/injector for no.4/8 cylinder
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Saturday, June 12th, 2010 AT 2:11 AM

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