XLR8

iTrader: (52)

1. Twin power
2. Pickups on the main pulley
3. Ground re-inforcement (ECU as well)
4. Swap ECU's
5. Harness swap

Hopefully you don't have to call a priest, cause there isn't much left.

Fritz Flynn

iTrader: (263)

That priest comment has awesomeness all over it

scotty305

iTrader: (2)

I'm not familiar with Apex'i PFC's, but are you certain you're not hitting some sort of overboost cut?

If the problem is actually due to weak spark, the stock ignitor may not be grounded well. Note that it grounds through the mounting bolts, there isn't a ground wire for the ignitor. It's not a bad idea to clean the ignitor, the mounting bolts, and the metal part of the chassis that the ignitor bolts to.

Assuming the problem is heat-related, you try opening the hood after the car is hot and using a fan or an ice pack to cool down each of the components you suspect to be the problem.

RX7WEEE

iTrader: (16)

Ironically, my last name is Priest..... No joke lol.


I did ground re-enforcements all over the place including the ecu.









Yeah I'm very sure its not a overboost cut issue. I have my fuel cut set to something like 1.5 bar because i thought it might be that at first but it isn't.

I have read about that with the stock ignitor and have went through and cleaned the paint off the body and ignitor where it bolts down. I've tried 2 different ignitors and cleaned them both up all pretty like.

Haven't tried the ice trick, its worth a shot though!!!!!!!!

RX7WEEE

iTrader: (16)

Found out why my boost was creeping. Had a vacuum line that wasn't doing its job.

After many freeway on ramps and sitting getting hot I have zero missing. Peak boost was 8psi. I'll get a twin power after more driving to confirm that it was just spark blow out.

OC DEBO

iTrader: (3)

I have the same issue on my single turbo car. Did a twinpower fix your problems?

RX7WEEE

iTrader: (16)

I have yet to buy one, this time of year I only drive the car maybe once or twice a month so I'm not in a hurry to get one.

impactwrench

Buy an a/f ratio monitor. I'd bet its not ignition but over rich causing the problem.

Tem120

iTrader: (5)

great so it was all that vacuum hose?

mono4lamar

iTrader: (32)

Check all engine grounds and the one by the ecu. BUY OR BORROW A WIDEBAND. Stop shooting in the dark here. It's more than likely that it's very rich...

wstrohm

Would be nice to know which vacuum hose was bad (post #30).

RX7WEEE

iTrader: (16)

Like to update this because I had reading a thread without a fix posted.

Got a twin power and it's not having any issues. I need more fuel and I'll turn the boost up more but it seems okay so far. No miss or anything. Once i get more fuel to it and get the boost turned up I'll update this again.


I don't know how this got confused but my very 1st post I posted my AFR's, and I even followed up with another post stating my wide band was brand new in post #19.

It wasn't a rich issue.


The vac line that was ripped (below where I couldn't see of course) was my WG line which was causing the creeping issue.