Symptom:
     An Accord 2.2 to speed up the weakness.
     Diagnosis and Elimination:
     First check the fuel pressure, idle at 4.5bar, rapid acceleration to reach 5bar. Check the engine pressure regulator side pressure is also normal. After adjusting the system pressure regulator spring preload, idle when the fuel found fault phenomenon was significantly improved, the highway test, found more than 80 km / h to accelerate the strenuous. Back to the factory after the check the spark plug no bad signs, the cylinder line surface is no problem, try to change the phenomenon of cylinder line failure significantly improved. The test is still not more than 120 km / h, the car in the repair process has been a bad car bad car. Temperature control switch, check the cold start the nozzle, the situation is intact. After the demolition of the relay box after the troubleshooting, before the control of the pressure regulator vacuum tube was removed, and tape to plug its hole, can not solve the problem. Finally, the study decided to doubt the oil problem. Check the oil circuit without oil or loose place, dismantling the fuel pump found around the filter a lot of stolen goods, cleaning equipment after the test all the symptoms disappeared.