few problems regarding- codes and hesitation

[EZ4U2ENVY]

First
95 atx SHO
Read the codes- got 214-212.. i know what they mean. I replaced the CID- and still getting the same 2 codes. Next thing i have been doing is checkin electrical connections- which ones should i be lookin for and fixing.

Also can it be a computer problem or dis malfunction??

Second
91 SHO
Hesitates real bad from idle till 3850 rpms
and yes my secondaries are shut..
Half throttle will work so much better than full throttle- I will probably be replacing wires and plugs and gaskets but i was wondering if theres anything else that would cause hesitation - loss of power. my plugs are about 20-25k miles on them and wires too.

third,
91 Sho
what are the problems if my clutch pedal becomes very easy one day and the next day it becomes very hard. bad pressure plate?? i just had a new clutch put in about 8 months ago...

Thanx for any comments in advance

 

[SHO--ripper]

What's the problem with the ATX? Did you replace the CPS yet?
The 91 that hesitates, does it have oil in the plug wells? Try checking the fuel pressure on the fuel rail. Does it throw any codes?
The 91 with the clutch issue. Did you try adjusting the clutch? If not try pulling up on the clutch pedal with 10 pounds of force. If you hear clicking you adjusted it. If there are no clicks try lubing the clutch cable. thumb

 

[EZ4U2ENVY]

95atx
yes replaced cid- camshaft sensor also the crankshaft sensor has been replaced within 3 months

91 clutch yes i try adjusting it nothing..

no codes