fookin give up!!

 

the other morning started car up, it was running on 5, drove to end of road it sorted itself out ran like a dream. Started car up to come home b@st@rd back on 5 and been like it since, lifted all coil pack plugs and found number 4 not firing, took coil pack off and plug out the plug was dry. Tested all injectors by listning for the click with a screw driver, no click on 4, cleaned injector connector up replaced it started car still running on 5, removed PTU and connectors cleaned them up, started car, still running on 5. So thought it must be the injector connector, replaced with a brand new 1 still bloody running on 5, also cleaned temp senser to the ECU up and disconnected battery and reset ECU........whats next any idea's, thanks

To check the injector get one of those little square 9V batteries and attach a couple of wires. First try a good injector by putting the wires to each terminal (dont worry about polarity) to hear the clicking and then try the suspect injector and see if it makes the same noise. It is easier to attach a couple of probes to the wires from the battery to make get on the injector pins.

You lucky fella getting to pull your plenum off. At least you'll be able to replace all of those ugly looking water hoses while your at it.