Misfire problem above 100Kpa (MS3+MS3X and 7M-GTE)

[eraezer]

Hello,
I'm having trouble with misfire above 100kPa.

I have a thread on msextra.com but they are not really helping me.
http://www.msextra.com/forums/viewtopic.php?f=131&t=41815

Could you have a look and maybe even help?

Thanks.

 

[eraezer]

It's the stock coils.
It's also possible that it's the Bosch 124 modules controlling the stock coils.

 

[Enraged]

stock coils, or stock ignitor? I know alot of people replace the ignitor with the AEM to get rid of multiplex.

edit: nvm, i see your not using the stock ignitor. have you tried the 2jzge coils?

 

[eraezer]

No, I have not. What kind of coils do they use on the 2jzge?
I'm a little bit curious about the COP's from the 2jzgte...

 

[Enraged]

I'm using the is300 coils, they fit in the plug valley of the 7M and wire up just like stock.

my problem is the stock ignitor, just waiting on a DH61 to change it out.

 

[eraezer]

Isnt that a batch fire type of coil?

I would like coils that are smart (no need for ignitors) and are either COP or CNP.
When it comes to heat I think a CNP setup would be better since it can be placed under the intake manifold for example.

Does the 2JZ-GTE coils require ignitors? Do they fit in the 7M? Is it possible to install sparkplug wires on the to make them CNP?

 

[Enraged]

they are direct replacements for the stock 7M coils, so yes they still need the ignitor.

if you want smart coils, maybe look at the LS coils? I think they have a built in ignitor. I run an AEM v1 which means I'm stuck with batch fire (it only has 5 ignition outputs), so I haven't looked that much into other options.

 

[eraezer]

Yes, those are an option and a big plus is the ~200$ price tag on ebay.

 

[DL.]

I 've got LS2 coils on my 7m. I also have MS3/ms3x. I have mine tuned to about 250 kpa so far.

 

[Albert]

If you have a standalone. go with 1ZZ coils. they are like $30 each. and can run a 30+ spark plug gap and 30+psi with no need for a DLI. and built in ignitors.

---------- Post added at 05:58 AM ---------- Previous post was at 05:56 AM ----------

 

[Enraged]

I've got LQ9 (LS truck coils) on the way. Built in ignitors, cost $11 each.

 

[eraezer]

Albert: Are those a direct fit? Are they supported by the center cover? How are you mounting them?

Enraged: Have you thought about how to mount them? Or are you going to use them with IS300 coil boots and use them as COP?

 

[Enraged]

Yes, planning on that. Have to see if they actually fit in the head first

 

[eraezer]

Ok, well keep us posted on your findings if you could

 

[Albert]

Albert: Are those a direct fit? Are they supported by the center cover? How are you mounting them?

No. I am making a custom center cover for them to sit on.

 

[eraezer]

Albert, do you have any pics on that? or if not, care to explain on how you are designing that?

 

[Albert]

Same way as I did on my 1jz:

 

[mk3-4-me]

how would you wire those into the ecu? im going to be running stinger. JW how this would all go together. These seem like a good idea from what you say