Hi guys, I just bought a 90 Ls Integra last week and when im driving it everytime i change up a gear the car keeps revving for a second (like im still pressing on the throttle but im not) and after a second the rpms drop and i can proceed the the next gear to do it all again. what i have noticed is when engine is cold its normal but as soon as it warms up its there.
So far ive checked for vacuum leaks and theres none, cleaned the iacv and tested it and it works, cleaned the fitv and tightened it all the way down, tested the coolant temp sensor (that tested good), cleaned the TB and adjusted the throttle cable.
I was searching everywhere for answers to this problem and i read somwhere to disconnect the speedo cable and take it for a drive and that worked the car drove perfectly except the speedo no longer worked and the CEL came on after a minute, Surely it cant be the speedo cable causing this problem the speedo works perfectly when connected??? Anyone had a problem like this before ??