surging 3VZE - need guidance

bingo296

New member
Greetings - driving '95 4-runner 3VZE auto/air. replaced motor after #2 son developed rod knock and parked it. Driving under normal conditions at a slight throttle especially if light grade and A/C on a surge is felt, if giving heavy throttle no surge felt - nor is surge felt before engine is warmed up and overdrive kicks in - changed plugs wires rotor cap & rotor EGR valve & checked for vacuum leaks (none found). Been chasing this for 3 years and this is getting old. The other day it was suggested to disconnect the EGR valve and with the EGR temp sensor unplugged surging reduced (not eliminated but reduced somewhat), no changes with the vacuum line connected or disconnected and plugged. Does this give anyone a thought line to cure this problem???? There are no codes in the computer (except when I disconnect the temp sensor in the EGR valve). Also #2 son says he never noticed the surging but I do not think he had his foot out of the throttle long enough to notice

I need HELP

Thanks in advance

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