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#1
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HFM Code 21 95 E320
Have been gone for about a week.
Started the car up yesterday and it is running very, very rough. I have a code 21 on the HFM which Alldata says is "ignition output 3 or ignition coil". Just put new coils in about 6 months ago. Any suggestions as to how to troubleshoot this will be appreciated. |
#2
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Did you replace the boots?
Usually a misfire problem is caused not by bad coil wires but by the boots.
__________________
Paul S. 2001 E430, Bourdeaux Red, Oyster interior. 79,200 miles. 1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron". |
#3
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Yes, I replaced the boots when I replced the coils.
Thanks. |
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