Working on my 79' Corolla. Previous owner has replaced the 4K-C engine with a 3K engine. Everything is connected correctly and have checked everything 100 times. Now, everytime i start her up, she runs well but as soon i put her in drive it stalls.
Been trying to adjust the idle screw, but don't get much of a response from the motor. Has anyone got an idea of how the vacuum setup differs between the 4K-C engine and the 3K engine. If so can you suggest a diagram to follow to make sure it is all connected in the right spot. Or could this just be a completely different issue all together?
And has anyone got a clue how to decode the engine number, so i can figure out a manufacturing year?