92 corolla running cylinders 3&4

[Erv Metoxen]

working on a 92 corolla, 1.6 4AFE engine. Starts but only running on cylininders 3&4.

New plugs gapped correctly, New cap, rotor, and wires. Timing set to factory 10 degrees.

Getting fuel to all cylinders, spark to all cylinders, but the spark looks orange instead of blue.

any help would be appreciated.

Thanks

Erv 01 ST:huh:

 

[Todd Z]

did you compression check the motor ????



Todd Z

 

[Tom Schindler]

Sounds like compression is low on 1 & 2 cylinders.





Tom

 

[Kevin Palmer]

I agree. Need to do a compresion test to better determine which direction to head...

 

[EddieS'04]

but the spark looks orange instead of blue

Yes compression check.



Otherwise the spark is suspicious. Was it running before? Maybe poor qaulity wires.?