Tbarr419

I have a 94 22re pickup and number 4 cylinder is not firing, I have spark, 195psi, 92 octane. Plug is wet. .030 decked off block. Adjustable cam sprocket, bigger injectors and egr delete, little bigger cam. Could I possibly have too weak of spark for the compression? Any tips would be appreciated. I have stock ignition (plugs,wires,distributor,coil)

Terrys87

iTrader: (1)

I bought a truck one time that would fire the plugs but not ignite the fuel mixture. I ran some test on the coil and both test failed instantly. Check your Primary and Secondary resistance check and see what you get. Haynes has a great write up on testing the coil.

Have you tried swapping #4 injector to another cylinder? See if the problem moves or stays with the injector. Toyota did a poor job with the Injector wiring by using crimps in the harness. I have seen them corroded or even not connected when someone has tugged on the harness and broke the connection.

fierohink

You can also check your spark with a tester.



You can adjust the pin out until you lose spark to determine the voltage your ignition system is putting out, then compare that tithe service range in the FSM.

Tbarr419

alright thanks terrys87 I'll post my findings, it's been kicking my but