Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - CEL P0351 Ignition Coil "A" Primary Control Circuit/Open

sato · 11-26-2021, 05:05 PM

I read about some adapters to use newer coils (https://www.ftspeed.com/part/coil-ad...t#.YaFDDdDMKUk) but no information regarding if we can actually use a 2015+ wiring harness (complete engine harness btw) on our models.

The Subaru TSB 07-120-17R states different P/Ns for the 2013 and 2014 wiring harnesses, but no additional years are covered under that TSB. I can't find any regarding FR-S for that matter. Reason could make us believe 2015 wiring harnesses might work, but I'm not sure if I'm willing to find out it doesn't work / still have to purchase a new one.

As @whataboutbob stated back in 2015 (https://www.ft86club.com/forums/show...ighlight=P0353), SU003-04463 was the Toyota updated part per TSB 0013-0014. However, it seems to be a 2013 P/N only, same as the SU00304559 supersession. There is no supersession P/N for the 2014 model, or link between the 2013 MY wiring and recent update. Still, the SU00304750 fits the 2013 model.

This is the info for the Toyota P/Ns I found today (26-NOV-2021):

SU00304750 (2013, 2014), SU00305266 (2015) ~$400
SU00307784 (2017+) ~$1500!!!

Still unsure how they compare with the BRZ P/Ns, mentioned in their 2017 TSB.

PS Forgot to update, but it seems that the 2015 part (SU00305266) DOES fit the 2014 model, but might be only because they are ZN6C or ZN6D models (mine is ZN6B)

11-26-2021, 05:05 PM	#469
sato Senior Member Join Date: May 2013 Drives: Dodge Patitas Location: Puerto Rico Posts: 974 Thanks: 1,843 Thanked 371 Times in 265 Posts Mentioned: 6 Post(s)	I read about some adapters to use newer coils (https://www.ftspeed.com/part/coil-ad...t#.YaFDDdDMKUk) but no information regarding if we can actually use a 2015+ wiring harness (complete engine harness btw) on our models. The Subaru TSB 07-120-17R states different P/Ns for the 2013 and 2014 wiring harnesses, but no additional years are covered under that TSB. I can't find any regarding FR-S for that matter. Reason could make us believe 2015 wiring harnesses might work, but I'm not sure if I'm willing to find out it doesn't work / still have to purchase a new one. As @whataboutbob stated back in 2015 (https://www.ft86club.com/forums/show...ighlight=P0353), SU003-04463 was the Toyota updated part per TSB 0013-0014. However, it seems to be a 2013 P/N only, same as the SU00304559 supersession. There is no supersession P/N for the 2014 model, or link between the 2013 MY wiring and recent update. Still, the SU00304750 fits the 2013 model. This is the info for the Toyota P/Ns I found today (26-NOV-2021): SU00304750 (2013, 2014), SU00305266 (2015) ~$400 SU00307784 (2017+) ~$1500!!! Still unsure how they compare with the BRZ P/Ns, mentioned in their 2017 TSB. PS Forgot to update, but it seems that the 2015 part (SU00305266) DOES fit the 2014 model, but might be only because they are ZN6C or ZN6D models (mine is ZN6B) Last edited by sato; 11-26-2021 at 06:26 PM.