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Ignition coil Trailing and Leading wire follow through?
I went to replace the plugs, and I looked at how the ignition system was setup. I do not have OEM as it was swapped to the D858 coils, or LS coils, and it looked like they were matched incorrectly.. as in instead of L1 T1 L2 T1, it was L1 T1 T2 L1. I did not do the swap myself, but I don't have any reference point to go to. The bracket dosen't include the reference as I've read in other posts. I'm honestly at a lost on what are the correct coil placements are. The harness also didn't look like they were in order as they were all.. jangled up. It just almost seems like the previous owner actually preferred to have the coils in that order for whatever reason.. Is there some sort of way I can follow in order to place the right wires into the right plugs? The car also ran fine to my knowledge, but maybe I somewhat unknowingly damaged it. Is it possible I can take it all off and look at the harness? Is it even possible to have that setup? Would that have any reference point? And what's the worst case scenario that a wrong wire is on the wrong plug? I just don't wanna hurt my baby
I feel kinda stupid asking these questions but I'm at a complete loss. Thank you in advance
Last edited by RX-8 40th Anniversary; 12-05-2020 at 11:06 PM.
Thank you again! I'm also assuming you can't have the harness connectors in a different order then the coils, like connector 1 will not be able to cross over to L/R is and vice versa, Thanks again for answering my issues, I do appreciate it!
The harness is delivering power to the coils, the coil to plug order is critical.
You have to be sure they're in the right order.
Be careful you do it right.
The harness is delivering power to the coils, the coil to plug order is critical.
You have to be sure they're in the right order.
Be careful you do it right.
The harness delivers the power to the coils, and the harness connectors determine what coils are leading and trailing, correct? And the coils are there to deliver that power to the plugs via through the coil wires... right? I'm trying to get this wrapped around my head because I think the previous owner had the harness connectors on incorrectly. Unless the harness connectors don't really matter at all, Thank you for also bearing with me, I'm fairly new to the mechanical style of life as I can't find any reputable shops or dealerships around to work on it lol..
Tbh, I never gave the harness order much thought.
I know on the OEM setup, they were wrapped in a way where they stayed in the right order, the BHR kit used the same harness, so if your LS coils are in fact an old BHR kit, it would be hard to mix them up.
I don't remember, but I think my SakeBomb kit harness was either numbered or color coded.
If someone did a DIY harness, then Idk how to figure it out.
Hopefully someone more knowledgeable will give us more insight.
If it was running well that's pretty good indication everything os connected correctly, but maybe not placed in the original order.
If it were my car I'd strip it back to the stock harness (I assume the harness they built plugs into the stock one and they didn't permanently wire it in), and redo everything from scratch.
If it was running well that's pretty good indication everything os connected correctly, but maybe not placed in the original order.
If it were my car I'd strip it back to the stock harness (I assume the harness they built plugs into the stock one and they didn't permanently wire it in), and redo everything from scratch.
Pictures might help.
Haha so I managed to get the wires in the correct order and the car actually seemse to really love the new plugs, I was getting into low 6's for my 0-60 and now I counted atleast late fives.. so I'm almost sworn its not the motor having compression issues as it is really quick for me atleast.
I'm going to replace the starter because I've noticed the cranking speed is below 200, almost 120 RPM. so that's the other thing I'm going to try. Thank you guys for your help, I really appreciate it!
I don't think that would've made too much of a difference for your hot start problem.
You still should get the compression checked.
My LY was running great when I took it in for the airbag recall.
I figured WTH, I'll get the compression check while I was there.
Failed, I thought no way, it was running too good.
A few months after that it started taking longer to start until it progressively got so bad it started flooding, and finally one morning over a year later, I couldn't get it deflooded and either it blew a seal or the starter failed.
Still turned over but sounded a lot different.
If it is still at all slower to start when it's hot, you still have a problem.
Either way, if you don't have several thousand dollars handy, start saving for your eventual rebuild.
It's almost a certainty you'll eventually need it if you want to keep it long term.
I don't think that would've made too much of a difference for your hot start problem.
You still should get the compression checked.
My LY was running great when I took it in for the airbag recall.
I figured WTH, I'll get the compression check while I was there.
Failed, I thought no way, it was running too good.
A few months after that it started taking longer to start until it progressively got so bad it started flooding, and finally one morning over a year later, I couldn't get it deflooded and either it blew a seal or the starter failed.
Still turned over but sounded a lot different.
If it is still at all slower to start when it's hot, you still have a problem.
Either way, if you don't have several thousand dollars handy, start saving for your eventual rebuild.
It's almost a certainty you'll eventually need it if you want to keep it long term.
Yeah, I figured I should get it compression checked, I've had these parts handy that's the main reason I've been having some stuff replaced. I'm still waiting on a couple of things before I can go ahead and order that tester to see the health of the engine. Sad to see it struggling at 76k Miles, but things happen. Thank you!
Yeah, I figured I should get it compression checked, I've had these parts handy that's the main reason I've been having some stuff replaced. I'm still waiting on a couple of things before I can go ahead and order that tester to see the health of the engine. Sad to see it struggling at 76k Miles, but things happen. Thank you!
If you didn't see it, RCT has a discount right now.
See the last post.
12-05-2020, 11:02 PM
Ignition coil Trailing and Leading wire follow through?
