1JZ ISCV Help please.

**Smokey228** · 08-05-2009, 06:52 PM

Did you work this one out?

My car is doing the same thing by the sound of it... But mine is going to atmosphere and the problem has happened once before, but fixed itself

Basically, after having the car off the road with the isolation switch disconnected for 2 weeks, the single jobbie was done and car worked great...
Took for quick test drive, and no problems. Took it for several more test drives over the next few days, and car was fine... Until it lost all power. What seemed like a short or an ark or something...

Jumped out of car, and there was no power at all, so i checked the isolation switch first, and it must have wiggled loose or something, cause as soon as i touched it, i had power again...

I started car, and now it doesnt idle... It coughs and chokes and stalls, the ISCV Screaming for air as it stalls... So it seems to be pulling air, but maybe not enough? I open the throttle and once the revs are up around 1k, it seems to be fine...

Im going to run a quick test just now, basically swap for stock ecu, turn key... Test? Profit?

Last time it did it, i accidently arked a wire from the diagnostics box to the chassis, the car staled and wouldnt idle just like this for many weeks

Oh, what sounds like clapping noise on back off, could be backfire through the new turbo, manifold, and dump? im not sure lol

Cheers,
Jase

**Toy77** · 08-05-2009, 07:05 PM

jase,

did you pull yours out and clean it?

i have no idea about these things at all....

but if during your electrical issue the iscv fully opened or jammed shut, ie to full movement where it doesn't normally go, perhaps it has a bit of shit on it and has jammed???

cheers
Stew

**Smokey228** · 08-05-2009, 07:32 PM

I cleaned it thouroughly with degreaser and cloth... And i have also subaru head cleaner filled the plenum...

Cheers,
Jase

**renxun** · 14-05-2009, 02:18 AM

sorry for being off topic a lil bit. may i knw wat coils does the thread starter's car ran on? and the cable is that short?

**The Real Roadrunner** · 15-05-2009, 05:49 AM

GM LS1 coils, not sure what leads.

**Smokey228** · 17-05-2009, 10:23 AM

Linden,

Will the LS1 coil fit in stock position and provide a better spark than stock? Also, if they are available new, i'd imagine they would be cheaper than toyota, and rid us of annoying cracked packs

CHeers,
Jase