Carbon8

iTrader: (4)

what did you change in the tuning to improve the starting?
Starting issue was due to a vacuum leak and reflashing the tune, it would only stall on the first start as the learned parameters where not there yet.

what do you mean fog lines?
Home made fogger for vacuum line testing

what are Porosity tabs?
GM/delco tabs to help seals to seat right when placed between two non same materials e.x aluminum and iron

are you sure the white smoke isn't condensation or something to do with the air pump.
White smoke was present more so once the car was warmed up and the air pump was turned off

told you the dwell would help!
Yes, Yes you did

Brettus

iTrader: (2)

Carbon8

iTrader: (4)

Actually just got another misfire, on the BHR dwell. I was just free reving constantly messing around but still, multiple cylinder misfires and a constant CEL.


Will be going back to OEM coils over the weekend.

Carbon8

iTrader: (4)

Can anyone verify, will OE coils work on plugs gapped to .033?

FazdaRX_8

iTrader: (1)

they should, someone else had this issue, they just tested each bhr coil themselves then replaced the coild from a auto store...

Carbon8

iTrader: (4)

OE wont run on .033, went back up to .044 and all is well at idle. Will see how they handle for a week driving. If I get no issue I will just contact Charles as they are brand new coils. Also verified today I have no more vacuum leaks as well.

I did notice that my plugs were severely fouled with only about 1K miles on them since I pulled them and cleaned them. they are all black.

Carbon8

iTrader: (4)

*Update*

Went back to OE coils, on a .044 gap with stock dwell and noticed the car is much smoother and feels more stable. 50 miles on so far no misfires or issues so I will be testing my BHR coils and see what their status is.

Also noticed that my plugs which I pulled and cleaned about 800 miles ago are severely fouled, I cant figure out why. Last time I pulled my plugs they had 1000 miles on them and they were not even close to this condition. If anyone can lend some insight to this?






Also side note, got my blackstone lab reports and the oil was in great condition. No coolant traces and very few traces of abnormal break in deposits.

shadycrew31

iTrader: (6)

Glad you got everything sorted, I was getting worried there...

Carbon8

iTrader: (4)

I was getting more annoyed than anything.

Kinda concerned about the fouled plugs, besides a rich A/F I have not idea what would cause it.

Also note that during this time I ran no premix.

9krpmrx8

iTrader: (46)

I bet the fouled plugs are due to the coils not functioning properly. Glad to hear you got it sorted.

dannobre

iTrader: (3)

That leading plug doesn't look like it was firing..the electrode tip is completely covered with crap....

Did you get a chance to check out the coils?

Carbon8

iTrader: (4)

I do know the leading plugs were firing, I pulled the wires off the trailing and fired the car solely on the leading plugs alone and it fired right up and idle

So i am not sure. the plugs where gapped real low, Cam at pettit recommended a .033 gap which cause a lot of problems when I first put the OE back in the car would not even find idle. Now I have the OE coils and plugs at .044 and everything seems to be really strong.

shadycrew31

iTrader: (6)

Might have been initial burn off from the treatments and coatings petit uses.

Carbon8

iTrader: (4)

I suppose, its just weird that I did not see it in the first 1000 miles but I see it now at 1800 miles.

We will see how they look in another week or two, I cleaned them up before I reinstalled them.

Kane

iTrader: (1)

Thats my guess.

Carbon8

iTrader: (4)

Im with you guys, pulled my plugs after only 50 miles on OE coils and the leading plugs are practically de-fouled and the trailing ones are in much better shape too.

Shipping my coils back to charles tomorrow to get them tested.

these last 3 weeks sucked

Carbon8

iTrader: (4)

Coils arrive today, will see how they work out.

Not sure if one was defective, but Charles said he replaced all 4 coils and sent them out to me.

Side note, I have decided on my next project. Everything is coming out again over the winter in order to do it though. Should keep me busy over the cold months.

Rotary_Redliner

Just gapped my stocked plugs down to .30" and it solved my misfire issues.

dannobre

iTrader: (3)

In an NA car...that would indicate a coil or wire problem

There is no reason that you should get a misfire from normal plug gaps

Rotary_Redliner

Just got done reading this thread, amazing build----crazy $$$! Didn't realize he was NA.... I gapped my plugs closer to solve my misfire issues on my FI build.

Carbon8

iTrader: (4)

My OE coils wouldn't even fired when I had my plugs at .033, had to set them back to .043 and all has been well with the world.

9krpmrx8

iTrader: (46)

I have never known of anyone having to gap plugs on an 8 to resolve issues. Assuming they were gapped correctly in the first place and they should be since they come pregapped.

Carbon8

iTrader: (4)

My NGK came gapped at .055, I gapped down to .033 by Cam's request. But once I removed the BHR coils the OE would not fire with such a low gap so I put them back to Mazda spec.

O well, I get my brand new BHR coils this afternoon. Hopefully no more issues with them.

WTBRotary!

iTrader: (6)

^^^This...

9krpmrx8

iTrader: (46)

I hope the new coils solve your issues man.