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Engine Hesitates until 3200, then takes off

1K views 6 replies 6 participants last post by  nickatnight1989 
#1 ·
1988 Si OBD0 5-speed.

I had a CEL for O2 sensor so I replaced it & reset the ECU. Then I started it and warmed it up, then I drove the car around to make sure the code was clear. No more CEL.

New Problem:
When driving, the engine seems to massively lack power now matter how deep I push the throttle. Then, at ~3100 RPM's it takes off like a rocket. :burn:

I am considering the following as possible problems:
- TPS calibration.
- Ignition timing.

What else?
 
#4 ·
Are you thinking the rotor is cracked? That has happened to me.
 
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