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Stutter at 3000rpm
My '73 1.7L (stock FI) is developing a stutter specifically at 3000rpm.
Heres the scenario:
Accelerate away from a stop in 1st gear, shift to 2nd, and the car stutters as the engine passes 3000rpm. Used to happen about 1 in 10 times, now more like 1 in 3. Sometimes it will stutter again after shifting to 3rd, also always at 3000rpm. On very hot days it may occur at about 2700rpm.
This is definitely associated with engine rpm, not throttle position. Happens under hard or easy throttle, up or down hill, rain or shine, etc. Plugs, wires, cap rotor, fuel filter, all recent. (within 6 mo.) Fuel pressure good and steady.
Could this be the "flat spot" mentioned in the PP Catalog description of temp sensor II?
TIA
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