Misfire

[inline6bmwfan]

Honda civic 1.8 vtec, sudden limp mode, flashing EML, misfiring.

Located to cylinder 3, changed ignition coil, no change, spark plugs all fine.

No smell of fuel from 3rd cylinder when starting so no fuel getting in cylinder.

Swapped injectors round and put cylinder 2 in cylinder 3 and vice versa. Started car, now BOTH 2 and 3 cylinders not firing, car still starting up.

Fault code points to faulty vtec solenoid BUT would that make any sense why only one cylinder wasent firing initially and then 2 stopped firing once injectors were swapped with each other??

Cheers

Edited by inline6bmwfan on Saturday 10th September 19:38

[1-3-2-4]

Hi,

Doesn't make sense to me but how much would that solenoid cost?
Normally I would take fault codes as an indocator and follow my own instinct.
But here it's a fairly clear feedback from the ECU.
Is it possible to test the solenoid (power probe e.g.?)

[NMNeil]

Check the voltage between the yellow and black wire on the injectors to ground with the ignition on, should be battery voltage. Now check between the same yellow and black wires and the positive terminal of the battery, should be almost 0 volts.
Start there, and if my diagram is wrong for the colours, just probe the wire that's the same colour for all the injectors.

[Belle427]

Maybe the injector was faulty and it’s now damaged the circuitry in the ecu hence why the 2 no longer work.