okay, so as the title says, my car hesitates (when it was running ) whenever i'm cruising, maintaining a set speed, with my foot barely on the gas, and my boost gauge reading a vacuum pressure between 15 and 20 inHg.



mind you, now, this happens in any gear, at any speed, whether it be 3rd gear at 30 mph at 2500 rpm or 5th gear at 70 mhp at 3000 rpm.



realize, after i change out my rusty spark plug wires and plugs, this and many other fuel system problems could go away, but i was just looking for ideas right now.





























...that and i could use some mo' posts in the old post counter

 

tps maybe?



mike

 

tps would be my guess too

 

so i need to reset it, or just replace the sensor? how much do those run?

 

Do u have an aftermarket bov? my car does the same ever since i put the apexi twin chamber in...



the bov flutters a bit. So that i hestiates a bit and get a **** load of gas going out to the tail pipe

 

So, your sig is a lie! Not "completely stock" are we???

 

Apex-i Twin Chamer BOV

Apex-i SAFC

Apex-i AVCR

Greddy 60 mm Electronic boost gauge

Racing Beat Strut Tower Brace

CapClutch.com HPS clutch kit good for 300lbs/ft with exedy disc



2.5 inch downpipe, 2.5 cat, to shitty *** Ypipe to even ******* mufflers



New rear wheel bearings with Racing beat DTSS eliminators (nothing installed yet)

HAWK HPS pads front and rear





next purchases will be MikeL front lip, and WBo2.com version 2.0 DIY kit when it comes out and Mazda 929 Master cylinder.



Next plans are:

Racing beat turbo back exhaust

Energy suspension bushing with new lower A arms

K2rd coilover kit with rear pillow ball mount

Enkei RPM2 17x8+35 and 17x9+40mm on Toyo T1-s 225/45/17, and 255/40/17

 

my vote is for TPS, might just need adjustment.



if you find it's bad, I have a brand spankin new TPS from mazda that I'm not using or ever going to use (have haltech).



email me if you want it, they're $179 new from mazdatrix, I'll sell it for $100. I had ordered it from mazdatrix without even looking to check the price in a large order of other things, insane.

 

"Energy suspension bushing with new lower A arms"



I hope you install S4 Arms so you can replace the ball joints

1

 

banzai,



can you confirm that i can use S4 TII A-arms on a S5 TII car? i'm tempted to go buy a set off the local wreckers and see if it will bolt up. seth said the mounting point for the end links for the sway bars are different. But if tha ti the case mazdatrix endlinks should solve the problem, provided they are long enough.



Can you confirm my observations? and ideas?