basically when i go through the power band lightly i get minimal to no hesitation, but if i go anymore then 1/4 throttle i'll get a hesitation at 3500rpm and 5500rpm, approx. there anyways....

if i run more boost the hesitation is worse....

when i revv in neutral i get a hesitation when i watch my motor....

mod are as follows on the bottom of the page, and it's dualy noted that i have grounded everything but the EFI harness under the UIM and changed the injector clips.... for now....


- S4 Block with S5 Externals
- 3" Racing Beat Turbo-Back Exhaust
- S5 Polished Turbo With Massive Ported Wastegate
- Blitz DD BOV
- Coilovers ( Tein rear, Ground Control front )
- Centerforce Dual-Friction clutch
- HKS PFC F-Con
- HKS GCC
- Knights Turbo-Timer
- Knights FCD
- FD Flywheel
- Racing Beat Swaybar Kit
- JDM Brake Balancer
- Stainless-Steel Braded Brake Lines
- Autometer boost and A/F guages
- MazdaSpeed steering wheel
- MazdaSpeed racing pedels
- Manaray 6spoke 16" rims
- K&N Filter on 3Inch TID
- Yokohama AVS ES100 Z-Rated rubber
- Greddy ProfecB SpecII Boost controller
- Walbro 255lph Fuel Pump
- Full Custom Grounding Kit
- Greddy Vspec FMIC
- MSD 8.5cm Race-Wires
- Megan Front Strut-Tower Bar
- Megan Rear Strut-Tower Bar
- Denso 720cc Secondary's

 

Check your gas tank for rust or dirty gas

 

it has a full tank of fresh gas in it....

 

Prob a boost leak.

 

i've checked, cant find anything....

 

i should note it doesent hesitate in 4th and 5th gear....

or atleast doesent seam like it, it might happen higher in the RPM range but i havent gone that hard yet....

 

https://www.rx7club.com/showthread.p...55#post5131155

 

I say boost leak. Mine only happened when I went above 3psi.

I could not find mine, but tell ya what. I went to ATPTURBO.com and oredered their couplers. They are tripple stiched, opposed to the greddy single stiched. I also bought the T-Bolt clamps. All boost heitation went away. The only way for you to tell if it is boost is to boost and try to find it. You wont hear the leaks under idle.

 

i've checked, i cant find any boost leaks....

i re-checked all of the couplers and vac. lines, still nothing....

 

I know that FCs (mine) supposedly get this same hesitation. If you've checked the FD FAQ, then maybe ours (FC) will help you. I've seen this mentioned in there.

 

I'm an idiot. I didn't realize we were in the 2nd gen forum. I'm a moron.

 

boy that was a lead up to a disapointment....

:P

 

it's a little cooler out today and my car's running nicely?...

i need input please!...

 

this is just kind of a thought, but did you check your plug wires for a faulty connection. I know in piston engines that a bad spark plug wire can cause some hesitation in that rpm range. Can't imagine its different for a 7, but it could be.

 

the wires are brand new, it ran really well before i got a bunch of mod installed....

 

Something's always wrong and there's always new hesitation threads...

 

from me?, yeah....

it seams like a compoud of things and different reasons as to why the car's hesitating....

today i ran higher boost to see what kind of symptoms my car would show, and it hesitates worse and more on higher boost....

any idea why it might do this?...

 

i changed a vac. line and put a ground strap off the coolant filler neck on, it runs a little better but still hesitates like a ****....