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HybridZ

revs but hesitates


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first off i did a search on here and on zcar.com with no luck.

 

year: 1979

make: datsun

model: 280zx

trans: manual

mods: none

 

after buying my car i replaced the spark plugs, cap, rotor, plug wires, oil, fuel, air, and oil filter. while driving i would notice white smoke during heavy deceleration. changed the vacume hoses that were cracked which steadied my idle and cleared the white smoke. however after i drive the car for 10min or so when i stop and have the clutch in or car is out of gear it revs at 1500 and has been as high as 3k. i have also noticed that when i give it gas it hesitates but slowly revs to any rpm i desire. any ideas?

 

(update)

i messed with the connections for the injectors and mas. the car now revs without hesitation and no smoke. it is, however, still idleing at 1k. i warmed up the engine and and adjusted the idle air control per the haynes manual yet it still idles high.

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