FaixaBJJ

My 1&6 spark plug seems to be shot. I have swap the 1 & 3 coils back and forth to check if I needed a new coil. But it doesnt seem that way. Everytime I switch out the #3 coil (thinking it might be the bad one) to the with the #1 ( the good one) coil no difference!
Ive changed the sparkplug wires, and i really dont think its a ignition coil problem. What do u guy think?

Mandrake

If you want to check if there is spark, you can just pull the fuel pump fuse or fuel injection fuse, uninstall the 1+6 spark plugs, insert them into the spark plug boots, rest the spark plug against the valve cover and crank the motor over. You should see the spark.

FaixaBJJ

There is sparks coming out

Mandrake

So what is the actual problem?

FaixaBJJ

Alot of vibration during idle, slow acceleration and seems to be sucking alot of gas.

Mandrake

I think its a fuel injector. You can listen to them with a stethoscope or by pressing the handle of a screwdriver to your ear and the tip on the fuel injector. It should be a regular clicking noise and they should all be the same. If any of the plugs are wet or fouled, thats another sign of a bad fuel injector. If your engine oil smells like gas, thats another sign.

FaixaBJJ

I will definitely check tommorow.. but why the number 1& 6 though? How are the 1 & 6 injectors connected to each other though? do u happen to know what the injector part nymber would be? Its a 1997 GS300 petrol

Mandrake

I'm not sure why it would be 1&6. I don't have the fuel injector part number. Normally I use rockauto.com for this kind of part.