Hello,

So just yesterday my car has given me the first hick-up.

As I was leaving a parking stall from stop, my car made a clunking sound and all of a sudden it wouldnt idle, well it would just maybe at like about 300rpm. Sounded like it was mis-firing, like it was on one rotor, big gaps in the exhaust notes. The car does shake very brutally at idle. I gave it a bit of gas to get it going( I am parked) . It was unresponsive under 1500 rpm but once it got over 1500rpm it was fine. It would rev up very fast

After i saw it would still rev up very quick, i took it for a drive. I know it might not have been smart, but i boosted it, still pulls very hard, my external wastegate would open and car sounded same as it always did. Very strong pulls still.

But when i would slow down to stop the car would stall, and barely start again, but again, but The car does "drive" perfectly fine.

I pulled the plugs out and upon visual inspection they seem fine. I looked around for vacuum leaks, intercooler piping blown off, nothing. Or anything un-clipped. Weird thing that came up, if you "wiggle" the EGI fuse the cars idle will changed raised for a second.

So im looking to you guys from some advice. Or anything i can try.

Little info bout the car if it will help.

My Car: 1990 rx-7 t2
The car is RHD(not stating that be a ricer just wondering if there is any differences btween lhd and rhd), I have changed oil since i got the car to 20w50(dont know what was in it before)
The car was chipped by knight sports and tuned for 8 psi. The car is supposed to be street ported with 3mm apex seals.

Ive had the car for a week, ran 94 octance. Car has been dyno'd did
281whp and 221wtq on 8psi

 

at the beginning it sounded like one rotor firing, but that wouldnt make sense since it still pulls fine. something at idle must be causing one of the rotors to not firse correctly. wish i could help with this one, but im abot as lost as you...

and what turbo are you running?

 

Greddy 25G

 

Started the car today, same problem except, I noticed when if i hold it at 4000rpm there is a blip in the exhaust notes, its not consistent though.

Lots of gas coming out the back, cleared it 3 times.

 

Wanted to add in,

When car does idle, the idle is consistent, not bumpy.

 

Anyone know if it is possible that the spark isnt going all the way through the plug or is that pretty brain dead thing to think?