If you want to make a new harness, it is pretty straight forward. Pheonix Tuning sells the connectors and terminals, you just need to measure the wire lengths and crimp the terminals on. You can also re-use your old connectors if you depin them.Ok, so this is what is needed,
-Coil Packs From 2001 IS300 With A VVTi Engine
-7M Coil Pack Harness
Any special spark plugs to use to get the plugs to fit? Could Aaron make a new coil pack harness if I called and asked him to since I have bought everything for all the Supra's we have built from there....a little over eight grand.
Took, would you be able to make a coil pack cover like that for me? How much would you want, PM ME.
Seems i changed the order of the coils, i put them in this order:Sounds like your wires are loose, make sure the spring is touching the sparkplug, and make sure the wires coming off the coilpacks are on nice and tight. Remember, only the boots coming off the wires plug in nice and tightly, the coilpacks are actually loose, and should be held down, BUT for just testing and idling, only the spring needs contact. If you're missing the spring on 1, then you found your problem..
EDIT: on second thought do you have them in the right order? You may have 1 swapped, as in where there should be a coilpack, you have a spark plug wire. The coil packs should be in cylinders 2, 3, and 5, wires should be going to 1, 4 and 6...
Oh and incase no one has mentioned this, you need to remove the spark plug gallery to install them
I have used after market plug wires and my supes before. It just doesnt pay. The quality of factory toyota wires are unmatched. If I have to order them, which I did, then I will order them from toyota. Champion toyota has great prices but when you figure shipping, it was a difference of less than $10 and I know the local dealer should get them to me tomorrow. As long as that one they are showing is actually there. Any time I order from Champion, its the end of the week at least.Have your local part store order them or get them online from RockAuto.com
I actually thought about that as well. But when I did my rebuild, I had all the injectors tested and cleaned. Not to say that is NOT whats happening. I will have a better idea once I get this upgrade up and running. If I still have troubles then I will look into it further. I also tested the temp sensors on the water neck. Thinking that was causing the cold start injector to fire even when warm. Didnt find anything wrong there either.maybe your cold start injector is acting up, and running too rich at start up, or something...
yes each coil has their springs. I have posted a thread about my problems in the tech section. Im having issues with my stock setup now. Dont want to clutter this thread any more.Did you double check and make sure each coil has its spring?
i know this might sound a little bit insulting, but it's possible as it happened to me D ), make sure you take off the spark plug galley cover, otherwise the tubes arent' long enough to reach the spark plug and you're running on 3 cylinders (if at all)...
I forgot to mention that I did that upgrade, while the car was down, before I restarted with the new plugs. So that mod has been done.yeah, I'm actually online right now, trying to replace that ugly ISC hose connecting the pipes going to the accordion pipe.!
also, what you can do is ground your igniter and see if that fixes it
The coilpack harness plugs are the same (IS300 and 7M).I can't tell are those the same plugs of the original harness that clip on to the coils or are those the plugs from the IS300? And do you have any more pictures of you putting together the harness, like wire lengths etc.?
I think I extended the 1-6 about 10" and the 3-4 about 8". I can't remember since it's been about 8 months since extended the stock harness. The plug/COP location doesn't matter since it's a waste-spark system as long as plugs/cylinders etc 1&6, 2&5, and 3&4 share the same harness plug from the igniter. Currently I have a cop/plug setup of 6/1, 2/5, and 3/4 which fits the stock manifold and throttle bracket setup.but what are looking at wire length wise, and is there a diagram that shows what goes where?
I'm wondering the same thing, especially for #3.Has anyone figured out what to do in order to get the dust boots to seal the spark plugs into the pockets?
What sparkplugs are best for this? I run the ND PQ20R-P8 and as stated above, the coil pack doesn't seem to sit down on the plug, especially #3. The one end of the coil is up against the cam cover bolt areas on either side - the valley doesn't seem to be wide enough between the two middle camcover bolts to allow it to go down any further.I cant use shorter lenth spark plugs cuz then the coil packs won't sit on the plug properly. And I don't know where/which silicone dust boots to change to. The only thing I can imagine is to fab up a spacer collar that can be pressed into the spark plug well and increase the overall depth of the well so the vvti coils will seal fully.