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  • 2005 - 2014 S-197 Mustang -General/Talk-

Aftermarket HP coil damage to ECU?

  • Thread starter Thread starter Paleridr50
  • Start date Start date Jan 23, 2020

Paleridr50

New Member
Dec 25, 2011
23
0
1
Eastern, NC
Jan 23, 2020
#1
  • Jan 23, 2020
  • #1
I bought a used 2006 GT 'Vert recently. While having some work done my mechanic noticed that the previous owner had replaced the OEM coil packs wi HI Performance COPs from Accel. He told me that the aftermarket HP coils could ruin the ECU and cause expensive repairs. Has anyone else ever heard this? I could not find anything online to confirm it.
 

don ruggles

15 Year Member
Jan 11, 2013
61
4
8
Jan 23, 2020
#2
  • Jan 23, 2020
  • #2
The thing that stresses the ECM(PCM) is gapping too widely.
 

Paleridr50

New Member
Dec 25, 2011
23
0
1
Eastern, NC
Jan 24, 2020
#3
  • Jan 24, 2020
  • #3
Okay... let's pretend I'm dumb for just a minute. Exactly what gap are we talking about?
 

cbxer55

Active Member
Jan 25, 2020
318
70
38
Oklahoma
Jan 25, 2020
#4
  • Jan 25, 2020
  • #4
Spark plugs have too wide a gap.

I have Accel coils on my 4.0 V-6. And JBA spiral wound wires. Stock plugs gapped stock. Runs great. I've never heard of after market coils causing issues.
 

Paleridr50

New Member
Dec 25, 2011
23
0
1
Eastern, NC
Jan 26, 2020
#5
  • Jan 26, 2020
  • #5
cbxer55 said:
Spark plugs have too wide a gap.

I have Accel coils on my 4.0 V-6. And JBA spiral wound wires. Stock plugs gapped stock. Runs great. I've never heard of after market coils causing issues.
Click to expand...
Yeah, me either. Just wanted to make sure I wasn't missing something. Thanks!
 
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