What is wrong when you could see electricity going through the spark plug wirings on a 1994 Toyota Camry

Please follow the link to get the wiring diagram for toyota camry 1994 car.

Link: https://cardiagn.com/1994-toyota-camry-electrical-wiring-diagram-pdf/

Hi Juan !
the spark plugs wires are 4 (four) the engine works in sequence of 1342 on the distributor cap mostly writes 1 ( one ) this means the first piston-the first spark -lead. if it is there then go clockwise and put the rest following the firing order I wrote above.

Get a tune up . wires plugs cap rotor , Clean MAF , replace TPS . etc.

cylinders 135 are on rear off engine by fire wall, does your car have all coils or only front three, if this is the case, if no oil found into spark plug tube try replacing wires first, if oil in them replace valve cover gaskets and gromets, dont forget a fresh set of wires.

go to youtube .com type in toyota camry 1994 and c wat comes up

First, you didn't mention which engine your 1994 Toyota Camry is equipped with. (This is really MUST-KNOW information if you want help with fixing your car.) There is a 3.0L V-6 engine and a 2.2L 4-Cylinder engine. Two TOTALLY different animals! I'll just take the extra time to answer for BOTH of them....

If your Camry is equipped with a 3.0L V-6 engine, You cannot find the spark plug wires because there are none, That engine is equipped with Coil On Plug (COP) ignition. The coils on the left bank (the side of the engine near the radiator) are located under the plastic cover on top of the engine. The coils for the right bank (the side of the engine near the firewall) are located under the upper intake plenum. The plenum MUST be removed to access them. (this is also required to replace the spark plugs.)

If you have the 2.2L 4-cylinder engine, the wires run down the center of the valve cover and the boots go down through the valve cover to the plugs. The other end of the wires attach to the distributor cap at the rear (drivers side) of the engine.

Sounds like wet or moist spark plug wires. If this also occurs during early morning high dew point humid air, then you may have spark plug wires shorting out.

Replace wires.

SPARK PLUGS IN THE CYLINDER HEAD.FOLLOW SPARK PLUGS WIRES.THEY WILL LEAD YOU TO THEM.BE SURE CHANGE PLUG WIRES DISTRIBUTOR CAP AND ROTOR IF EQUIPPED.SOME MODELS HAD DISTRIBUTORLESS IGNITION SYSTEM.

Could be bad spark plugs or wires

As you are finding out ....this is how you kill a car. You need fuel, spark, compression, and air to run an engine. Look for spark and fuel items to be working. A computer controls much of the spark part. They canbe sensitve electrically. If you are cranking ..starter sounds ok. Alt. will act up after you get started. concentrate on spark and spark control. Fuel and fuel control. This is what you need to start.