172, 182, 200
So I have a clio 172 2003. A few months ago the emissions warning light started flashing. There was no detectable change to the emissions when probed, nor were there any detectable effects on performance. Later, the warning light went off and everything was fine for a few weeks. Yes, that's right, you can all see where this is going, later at a set of reds the warning light started flashing again. After a few minutes it then came on solid. After a quick diagnostics I found a P0300 historical error code "random cylinder misfire". As it turns out, many posts on this forum cover this error code extensively, with a multitude of solutions and also some failed attempts. Armed with this information, I had a look at the spark plugs and they were totally knackered. Problem solved I thought. Four new NGK laser platinum plugs later and things were running fine. Then yes, you guessed it, the dreaded warning light came back on accompanied by a detectable and intermittent misfire. Foot down, shudder shudder shudder, kick in the ass as you are propelled towards the back of an unsuspecting lorry type of thing. Now this, I find, is a bit of a problem in the whole error checking path. I had assumed the next thing to check would be the two lambda sensors as the misfire warning seemed to be an artifact of a failed sensor. Now there is an actual and rather substantial misfire I am more inclined to think injectors or coil pack. Given that this is a developing fault I am guessing something is on its way out and I probably need to replace something. Now in an ideal word I would just replace all four injectors, a new coil pack and two lambda sensors and have done with it but unfortunately, at the moment, I am the wrong side of broke. Can anyone take a punt and tell me which they would choose to do if they were in my position? Its a massive trade off between cost and the likelihood of fixing the problem(s). Any help would be much appreciated with this.
Duk
Duk
