Okay Okay. So I had thought it was my Fuel Filter that fixed my problems. Boy Was I Wrong!!! It was Great for that Day no Jittering. Today Jittering. Then I kinda Ran it low on gas and it was jittering Real bad! so I filled it Up. And then the Starter is not Working. Im thinking its the wires on it they where a lil exposed when i was under it yesterday. Then i Push Start the thing and I had to Drive half a mile from gas station to my Room and it Sounded like I killed at least 10 People on the way back with all the Backfiring, Loud as heck and lots of fire and smoke. Only thing that would make it run right would be to boost it and that's Really hard when The Speed limit is 25mph. So I made it back and parked it and it idles fine but Driving is a No go.

Any Suggestions? I've Already got Fuel Pump Relay as a Possible. Injector hung, MAF Sensor and or the ECU sucks.

Sorry jittering as Defined In the World Dictionary of Mike Is: Jittering; Git-er-eng: The jerky Motion of Power then No power for Quick iterations.

1989 Mazda RX7 Turbo. Rebuilt Motor in 2003 by Mazda with paperwork. Only i know they only did the main mechanical part the engine with out replacing the sensors.

 

So umm No one Knows anything that Could be my Source of the Problem?

 

my 87 is doing the same thing, im searching around now. sounds like its gonna be the TPS, so im getting some new leads for my multimeter to test it

 

check that cas? check timing make sure its not running around on ya?

 

u sure its a fuel problem?
whats it sound like at idle?

 

I'd check the TPS as mentioned above, and also pull out your fuel pump and check the fuel pump sock... It's common for them to get gummed up with rust and crap over the years, and you're basically hitting fuel starvation even at slower speeds... Check your fuel pump wiring as well, as that's a common point of failure, and improper voltage to your fuel pump may result in some of the symptoms (and you'll be in that area anyway to check the sock!).

 

mine was doing this, it ended up being the spark plugs.

you could check the TPS, but I sorta doubt that is the problem unless you are getting this jittering at a specific throttle position.