Please my Toyota RAV4 2002 model doesn't accelerate very fast ( when you start the car and idle for 3 minutes then you drive or reverse it doesn't move very speedily or when you drive from the corner to expressway it stalls) , my mechanic has changed the fuel pump three times plugs 4 times, serviced the nuzzle and used a carburator cleaner on the throttle mouth but I'm still having the same problem. Please help!!! Scan says it's oxygen sensor but I don't if that is correct reason giving how much I've spent

KINGreignn:


Post your VIN for me.
Have a very competent technician check and undo bridged wires, melted and exposed wires. He should also test and correct all fuses relays that are affected.

Starting sensor wire was pulling out and fixed motor working fine now

KINGreignn:


Post your VIN for me.
Have a very competent technician check and undo bridged wires, melted and exposed wires. He should also test and correct all fuses relays that are affected.

Thank you, it's been checked by a competent technician it's the starting sensor wire was pulling out from the socket. After connecting it properly the motor was on and working fine.

GAZZUZZ:


no pulse. My guess, no pulsar plate installed when coupling back. Remove crank sensor to peep inside the hole for its presence .

He didn't touch the pulsar plate, only changed the top gasket but he admitted that he bridged a wire that is where the problem started. They have tried about 6 ECU yet none worked, only one was able to pump fuel but no spark in the coil. Right now I'm about to tow the car to my house.

Good evening @ GAZZUZZ and everyone, I have a Toyota RAV4 2002 model that the top gasket was changed and the valve grinded too , after the mechanic finished coupling, the motor has refused to start: no spark and no fuel. It's been diagnosed by 2 persons and they said it's ECU, it has been replaced but no spark but the fuel pumps. What could be the problem? The technicians said that it needs a matching ECU( brain box) for it to start. It's be a week now.