Weird cylinder drop

4GTuner

Help Support 4GTuner:

LumpyVR4

Well-Known Member
Joined
Sep 20, 2013
Messages
354
Location
Sydney
Hey all, got a weird one for ya. When I start from cold, about 10 seconds after I start, I lose a cylinder. 5 to 10 seconds after this it picks up again. There are no other symptoms. The car has always done it since I've had it, and in that time I've replaced the coils, leads and plugs. Ignition module maybe, which would mean I'm actually on 2 cylinders, which is possible beacause it sounds like crap. Maybe an injector?
 
+1 on the temp sensor that Ross mentioned... I had the coolant temp sensor on the thermostat housing telling the ECU that the coolant was -59° and it didn't like that one bit.

Are you not data logging? Check the wires going into the sensor and make sure it doesn't look like mine did!!
 

Attachments

  • temp.gif
    temp.gif
    17.2 KB
  • wires.jpg
    wires.jpg
    34.7 KB
Back
Top