Ignition Coil - Radio Frequency Interference
April 1, 19978ULLETIN NO.
97-005
YEAR
1996-97
1996-97
1995-96
MODEL
3.5RL
3.2TL
NSX
VIN APPLICATION
See VEHICLES AFFECTED
Radio Interference From the Ignition Coil(s)
SYMPTOM
With the radio tuned to an FM station, a popping noise comes from all of the speakers when the engine is running.
PROBABLE CAUSE
Weak spring tension on one or more of the ignition coils allows a gap between the coil and the spark plug. Arcing across this gap causes radio interference.
DIAGNOSIS
Check for these conditions:
^ Noise only while the engine is running.
^ Noise when tuned to FM stations, especially those with weak reception.
^ No noise when using the cassette player or the CD player.
^ Noise reduction or elimination when you disconnect the 3P connector from the suspected coil(s).
If all of these conditions are found, perform the CORRECTIVE ACTION.
VEHICLES AFFECTED
1995-96 NSX - ALL
1996 3.5RL - ALL
19963.2TL - ALL
1997 3.5RL - thru VIN JH4KA9...VC007230
1997 3.2TL - thru VIN JH4UA3...VC006061
CORRECTIVE ACTION
Replace all of the ignition coils and the spark plugs with the ones listed under PARTS INFORMATION. For the 3.5RL, refer to section 4 of the Service Manual. For the 3.2TL and NSX, refer to section 23 of the Service Manual.
PARTS INFORMATION
NOTE:
The NSX has different ignition coils for the front and rear cylinder banks, so order three front coils and three rear coils.
Ignition Coil (6 required):
3.2TL, 3.5RL: P/N 30520-P5G-A01
NSX: P/N 30520-PR7-A33 (front, 3 required)
P/N 30521-PR7-A33 (rear, 3 required)
Spark Plug (6 required):
3.2TL, 3.5RL: P/N 98079-5515H or 98079-5517S
NSX: P/N 98079-5615H
WARRANTY CLAIM INFORMATION
In warranty:
The normal warranty applies.
Operation number: 117160
Flat rate time: 0.6 hour (including diagnosis)
Failed part: P/N 30520-P5G-A01
Defect code: 066
Contention code: B06
DESCRIPTION TEMPLATE ID
Replace ignition coils and spark plugs 97-005A
on 3.2TL and 3.5RL (spark plug P/N
98079-5515H)
Replace ignition coils and spark plugs 97-005B
on 3.2TL and 3.5RL (spark plug P/N
98079-5517S)
Replace ignition coils and spark plugs 97-005C
on NSX
Out of warranty:
Any repair performed after warranty expiration may be eligible for goodwill consideration by the District Technical Manager or your Zone Office. You must request consideration, and get a decision, before starting work.