hows it goin people...

ok here is the deal:

i noticed my throttle % (hooked up to my boost sensor) on my safc is wiggling all over the place.... so i went to sensor check. In that mode it shows the imput voltage from all the sensors. Well the boost sensor volatge is jumping up and down... .35 volts or so. It does it at idle, crusing speed.... all the time it does it.

The jumping around is pretty fast... i can see it on the monitor mode when i put it on the graph. The wave up and down on the graph looks exactly like my dyno sheet. My hp and torque have the same wiggle.

here is my dyno sheet so you can see what im talking about.



Im wondering if the boost sensor is causing my timing to fluctuate, causing my dyno sheet to be how it is. Im not to happy with the idea that my timing is up and down like it seems to be.

Any ideas?

jared

 

possible lack of a restrictor pill?

 

does a s4 have one?!? ummm...

 

I was under the impression it did... Hmm.. Let me check El FSM...

 

The FSM doesnt tell me anything, so I am going to wait and see if someone knows for sure...

 

im pretty sure the S5s have them.. but not the s4.

 

s4 has the pill. does it fluctuate with the engine off? if no then you need the pill, if yes then look at your wiring.

 

ok... where to get a pill from? and..... where do i put it. in the vacume line going to the boost sensor?

 

The ORIFICE can be bought from MAZDA. I posted the part number some time ago. I'ts supposed to be on series four. Search for ORIFICE.

 

Hailers likes the term ORIFICE..

 

any online companies have them? i searches mazdatrix and came up empty

 

The MAZDA Company likes the word ORIFICE also. It's used in their parts ficshce (sp?). http://www.mazdaformance.com/rx7parts.htm

 

 

And MAZDATRIX, although good people, disappointed me by not knowing what the double throttle diaphram was. So much for expertise.

 

mazdatrix didnt have a listing for the part. guess i need to go to mazda. i search for that part # on here too... didnt find it. seems you use that word alot in many many threads.

 

Here: https://www.rx7club.com/forum/showth...threadid=14679