Starts stumbling at 4000 rpm or above!!
 

I own a 1988 rx7 and this weekend all the emission controls were finally put back on the car. When we started it up it ran better than usual and no longer smoked but when we drove it loss power at 4000rpm and stumbled all over itself while backfiring whats up? Is there something on the acv that we need to adjust?

Secondary injectors plugged in?

TPS adjusted?

Check grounds...and search for 3800 rpm hesitation.

Its a common problem.

john ny

okay i will check all that thank you guys so much, and yes the secondary injectors are plugged in but what is tps?

Throttle position sensor. There is a shaft that connects your throttle plates, this shaft extends outside the throttle body where you will see the sensor. As far as adjustments go, check out the factory service manual for instructions.

Okay I have done some research and on my car before i had no emisson controls at all including no egr solenoid valve now the one i have now is bad so i decided not to put it on but go ahead and put evrything else on could the car be going into a limp mode becaus im missing the egr solenoid valve or do the fc not have a limp mode?

Thanks guys my secondary injectors were plugged took five minutes and she is running like a champ!

how did you clean them?