Failure at Honda Accord urges help

Good day friends I have a problem with my Honda Accord Mod 91 ex 4 cyl cil 16 Val The problem is as follows when you turn on the car the engine is very unstable you want to turn off and when you accelerate it (in parking) it does not accelerate more than 3500 rev since they are already going down and does not maintain the acceleration and it already changes distributor and all the cables are checked and the computer does not detect any damage. Check Engine has 3 months in the workshop and still doesn't find the failure for help .......

Hello, how have you changed sensors for a long time in the workshop Question and what have you done to you? How do you start the fault? Regarding the acceleration present the failure at cruise speed?

The car was working well from one moment to another no longer turned on to move the distributor and turned on but turned off again I got another distributor and turned on again but when I turned the distributor did not control the time and when you accelerate it the revolutions do not pass from 3500 because they in addition to rise and lower that the engine is very unstable Check Engine is off does not mark any code

I would review the ignition time in all its points. Checar sensor harnesses that are not broken or false, motor and computer ground connections. Start

Also check empty lines sometimes in these failures it works to go for the simplest