I have idle problem This is mi car https://m.youtube.com/watch?v=p2Gzhy7E288
AT 1997 Honda prelude took time looking for this failure and unresolved . I Change map sensor, change IACV (Idle Air Control Valve), clean the throttle and FITV (Fast Idle Thermo Valve), clean the egr, tps and is calibrated and i try whit another tps, ignition,new cable and new spare, fuel regulator, the car pulls no code. What else I can do? Q someone know?

 

Have you done an idle relearn? The screw on the throttle body might need to be reset. What were the readings when you calibrated the TPS?

 

How do i make the idle relearn?

 

https://honda-tech.com/honda-prelude...hread-1979500/

 

If your car doesnt die when it gets below 500 on the tach then it must just be the tach going bad. Check with an rpm enabled timing gun to be sure.