I have a 1987 rx-7 that is cutting back on me when I give it a lot of thottle.The engine is surging to. https://www.nopistons.com/forums/pub...IR#>/angry.png

check TPS and compression

whats TPS because every once in a while i get a studder when i give it full throttle.... a studder= a hesitation up untill say... 3.5k then it just fine after that and pulls like normal.

CAN ANY BODY HELP ME ON THIS TOPIC

You are giving very little info. First - Does the car have a fresh tune up? Plugs, wires, air filter, fuel filter??? Make sure all you vacume lines are on good and tight.



Start with that.



Second - buy about 3 feet of good heave ground wire and ground your engine again I suggest from a tranny bolt to the frame. There are some other things that need better grounding but this will do for now. (ECU under passanger floor board for one and the fuse block in the engine bay another)



Do these things and see if your studder is gone.



If not then go to the more technical problems TPS is first on that list.



Pleas give us more info on the car.



- Is it turbo or non-turbo

- Modifications you have done to it if any.

- milage on it





I hope I have helped you.

TPS. Throttle Position Sensor.

My N/A ran like **** when I first bought it. Tons of things were speculated, but it really needed nothing more than a good tune up. I think the fuel filter was pretty clogged, and the plugs/wires were hurting.



Tune it up and see what happens.