Ok I have an 88 RX7 non turbo with 186,000miles, I just got it. Anyway, the other day I started driving it, and it started to jerk really hard, so I pushed the clutch in and it idled normally, so I reved it to like 5 grand and it ran fine, so I was thinking it was fine. So I continued driving, anyway around 2k rpm's, it started to jerk really hard, so I pressed the clutch and reved to 2k and it still did it, it like has trouble staying there and shakes alot. So I replaced the fuel pump because in other cars I have had thats usually the problem, but it didnt fix it, so I replaced the filter and got new spark plug wires and plugs, but its still doing it. Someone I know said it could be the diff bracket or the MAP sensor but I don't know. PLEASE help me because I need my car for work on monday.

Thanks.

 

Hi and welcome to the forum. Youd get better help in the 2nd Gen section since your car is an 88. So I'm moving it there. Good luck.

 

TPS i would think ; can somone find the fc3s.org howto on adjusting it? i cant and im running to work

 

where is the TPS and what does it look like? all i see is a lil black box with a pokeer looking thing. lol please excuse my stupidity

 

Does it only do this once the engine is up to operating temperature?

 

Could be a bad air mass sensor. air get metered all wrong it will buck and die on you.